Common use of Table of Contents, Headings, etc Clause in Contracts

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29, 2005 L-3 COMMUNICATIONS CORPORATION the date first written above. REGENCY ENERGY PARTNERS LP By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Regency GP LP, its general partner By: Regency GP LLC, its general partner By: Name: Xxxxxxx Sxxxxxx X. Xxxxxxxxx Xxxxx Title: GUARANTORS: APCOM, INCExecutive Vice President and Chief Financial Officer REGENCY ENERGY FINANCE CORP. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx Sxxxxxx X. Xxxxxxx Xxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor GUARANTORS: REGENCY GAS SERVICES LP By: L-3 COMMUNICATIONS AIS Regency OLP GP CORPORATIONLLC, as its general partner By: Sxxxxxx X. Xxxxx Vice President REGENCY WAHA LP, LLC REGENCY NGL GP, LLC REGENCY GAS MARKETING GP, LLC REGENCY WAHA GP, LLC REGENCY INTRASTATE GAS LLC REGENCY MIDCON GAS LLC REGENCY LIQUIDS PIPELINE LLC REGENCY GAS GATHERING AND PROCESSING LLC GULF STATES TRANSMISSION CORPORATION REGENCY NGL MARKETING LP By: Regency NGL GP, LLC, its General Partner REGENCY GAS MARKETING LP By: Regency Gas Marketing GP, LLC, its General Partner REGENCY GAS SERVICES WAHA, LP By: Regency Waha GP, LLC, its General Partner By: /s/ Xxxxxxxxxxx Sxxxxxx X. Xxxxxxx ---------------------------------------- NameXxxxx Vice President REGENCY TS GP LLC REGENCY FIELD SERVICES LP By: Xxxxxxxxxxx Regency TS GP LLC, its General Partner REGENCY GUARANTOR GP LLC REGENCY GUARANTOR LP By: Regency Guarantor GP LLC, its General Partner REGENCY OPERATING GP LLC REGENCY EASTEX NEWLINE LP By: Regency Operating GP LLC, its General Partner REGENCY OPERATING LP By: Regency Operating GP LLC, its General Partner REGENCY EASTEX PROTREAT I LP By: Regency Operating GP LLC, its General Partner REGENCY EASTEX PROTREAT II LP By: Regency Operating GP LLC, its General Partner REGENCY GU GP LLC REGENCY GAS UTILITY LP By: Regency GU GP LLC, its General Partner REGENCY FS GP LLC REGENCY FS LP By: Regency FS GP LLC, its General Partner REGENCY TS ACQUISITION GP LLC REGENCY TS ACQUISITION LP By: Regency TS Acquisition GP LLC, its General Partner REGENCY FN GP LLC REGENCY FRIO NEWLINE LP By: REGENCY FN GP LLC, its General Partner REGENCY TGG LLC By: Sxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKXxxxx Vice President WXXXX FARGO BANK, NATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A ([Face of Note) -------------------------------------------------------------------------------- ] CUSIP [70000XXX0]1 8 3/8% Senior Notes due 2013 No. ___ $___ REGENCY ENERGY PARTNERS LP and REGENCY ENERGY FINANCE CORP. promise to pay to , or registered assigns, the principal sum of DOLLARS on December 15, 2013. Interest Payment Dates: June 15 and December 15 Record Dates: June 1 and December 1 Dated: , 20___ REGENCY ENERGY PARTNERS LP By: Regency GP LP, its general partner By: Regency GP LLC, its general partner By: Name: Sxxxxxx X. Xxxxx Title: Executive Vice President and Chief Financial Officer REGENCY ENERGY FINANCE CORP. By: Name: Sxxxxxx X. Xxxxx Title: Vice President This is one of the Notes referred to in the within-mentioned Indenture: WXXXX FARGO BANK, NATIONAL ASSOCIATION, as Trustee By: Authorized Signatory 1The CUSIP No. is USU75857AA72 for the Regulation S Note [Back of Note] 8 3/8% Senior Notes due 2013 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 80 SIGNATURES Dated as of July 29February 18, 2005 L-3 COMMUNICATIONS CORPORATION 2015 ISSUERS: WYNN LAS VEGAS, LLC, a Nevada limited liability company By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxxxxx Xxxxxx Name: Xxxxxxx Xxxxxx Title: Chief Financial Officer, Senior Vice President and Treasurer WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation, By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxxxx Title: Chief Financial Officer and Treasurer Signature Page to Indenture LA\3177134.6 GUARANTORS: APCOMKEVYN, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSLLC, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICESa Nevada limited liability company By: Xxxx Las Vegas, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSLLC, INC. L-3 COMMUNICATIONS AEROMETa Nevada limited liability company, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYits sole member By: Xxxx Resorts Holdings, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSLLC, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGSa Nevada limited liability company, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIits sole member By: Wynn Resorts, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESLimited, INC. L-3 COMMUNICATIONS ESSCOa Nevada corporation, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICESits sole member /s/ Xxxxxxx Xxxxxx Name: Xxxxxxx Xxxxxx Title: Chief Financial Officer, INC. L-3 COMMUNICATIONS ILEX SYSTEMSSenior Vice President and Treasurer WORLD TRAVEL, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESLLC, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONa Nevada limited liability company By: Xxxx Las Vegas, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSLLC, INC. L-3 COMMUNICATIONS SONOMA EOa Nevada limited liability company, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRIits sole member By: Xxxx Resorts Holdings, INC. PAC ORD INC. POWER PARAGONLLC, INC. SHIP ANALYTICSa Nevada limited liability company, INC. SHIP ANALYTICS INTERNATIONALits sole member By: Wynn Resorts, INC. SHIP ANALYTICS USALimited, INC. SPD ELECTRICAL SYSTEMSa Nevada corporation, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHits sole member /s/ Xxxxxxx Xxxxxx Name: Xxxxxxx Xxxxxx Title: Chief Financial Officer, INC.Senior Vice President and Treasurer XXXX SHOW PERFORMERS, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxxxxx Xxxxxx Name: Xxxxxxx Xxxxxx Title: Chief Financial Officer, Senior Vice President and Treasurer XXXX SUNRISE, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxxxxx Xxxxxx Name: Xxxxxxx Xxxxxx Title: Chief Financial Officer, Senior Vice President and Treasurer WLV EVENTS, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxxxxx Xxxxxx Name: Xxxxxxx Xxxxxx Title: Chief Financial Officer, Senior Vice President and Treasurer Signature Page to Indenture U.S. BANK NATIONAL ASSOCIATION, not in its individual capacity but solely as Guarantors Trustee By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxxxxxxx Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxxxxxxx Title: Vice President Signature Page to Indenture EXHIBIT A-1 [Face of Note] CUSIP/CINS 983130 AV7/US 983130AV78 5.50% Senior Notes due 2025 No. ___ $____________ XXXX LAS VEGAS, LLC XXXX LAS VEGAS CAPITAL CORP. promise to pay to ______________________ or registered assigns, the principal sum of DOLLARS on March 1, 2025. Interest Payment Dates: March 1 and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor September 1 Record Dates: February 15 and August 15 Dated: February 18, 2015 WYNN LAS VEGAS, LLC, a Nevada limited liability company By: L-3 COMMUNICATIONS AIS GP CORPORATIONXxxx Resorts Holdings, as General Partner LLC, a Nevada limited liability company, its sole member By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Wynn Resorts, Limited, a Nevada corporation, its sole member By:__________________________ Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxxx Title: Chief Financial Officer, Senior Vice President and Treasurer By:__________________________ Name: Xxx Xxxxxxx Title: Authorized Person THE Executive Vice President and Secretary WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation By: __________________________ Name: Xxxxxxx Xxxxxx Title: Chief Financial Officer, Senior Vice President and Treasurer By: __________________________ Name: Xxx Xxxxxxx Title: Secretary This is one of the Notes referred to in the within-mentioned Indenture: U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note] 5.50% Senior Notes due 2025 [Insert the Private Placement Legend, if applicable, pursuant to Section 2.06(f)(1) -------------------------------------------------------------------------------- CUSIP _____of the Indenture] [Insert the Global Notes Legend, if applicable, pursuant to Section 2.06(f)(2) of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 135 SIGNATURES Dated as of July 29March 12, 2005 L-3 COMMUNICATIONS CORPORATION 2012 ISSUERS: XXXX LAS VEGAS, LLC, a Nevada limited liability company By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation, By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxx Xxxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer GUARANTORS: APCOMKEVYN, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSLLC, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICESa Nevada limited liability company By: Xxxx Las Vegas, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSLLC, INC. L-3 COMMUNICATIONS AEROMETa Nevada limited liability company, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYits sole member By: Xxxx Resorts Holdings, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSLLC, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGSa Nevada limited liability company, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIits sole member By: Wynn Resorts, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESLimited, INC. L-3 COMMUNICATIONS ESSCOa Nevada corporation, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICESits sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer LAS VEGAS JET, INC. L-3 COMMUNICATIONS ILEX SYSTEMSLLC, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESa Nevada limited liability company By: Wynn Las Vegas, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONLLC, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSa Nevada limited liability company, INC. L-3 COMMUNICATIONS SONOMA EOits sole member By: Xxxx Resorts Holdings, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRILLC, INC. PAC ORD INC. POWER PARAGONa Nevada limited liability company, INC. SHIP ANALYTICSits sole member By: Wynn Resorts, INC. SHIP ANALYTICS INTERNATIONALLimited, INC. SHIP ANALYTICS USAa Nevada corporation, INC. SPD ELECTRICAL SYSTEMSits sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer WORLD TRAVEL, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHLLC, INC.a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer XXXX GOLF, LLC, a Nevada limited liability company By: Wynn Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer XXXX SHOW PERFORMERS, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer XXXX SUNRISE, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer U.S. BANK NATIONAL ASSOCIATION, not in its individual capacity but solely as Guarantors Trustee By: /s/ Xxxxxx X. Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxx X. Xxxxxxxxxxx X. Xxxxxxx Title: Vice President EXHIBIT A-1 [Face of Note] CUSIP/CINS 983130 AS4 5.375% [Series A] [Series B] First Mortgage Notes due 2022 No. $ XXXX LAS VEGAS, LLC XXXX LAS VEGAS CAPITAL CORP. promise to pay to or registered assigns, the principal sum of DOLLARS on March 15, 2022. Interest Payment Dates: March 15 and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor September 15 Record Dates: March 1 and September 1 Dated: March 12, 2012 WYNN LAS VEGAS, LLC, a Nevada limited liability company By: L-3 COMMUNICATIONS AIS GP CORPORATIONXxxx Resorts Holdings, as General Partner LLC, a Nevada limited liability company, its sole member By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Wynn Resorts, Limited, a Nevada corporation, its sole member By: Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE By: Name: Title: WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation By: Name: Title: By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note] 5.375% [Series A] [Series B] First Mortgage Notes due 2022 [Insert the Private Placement Legend, if applicable, pursuant to Section 2.06(g)(1) -------------------------------------------------------------------------------- CUSIP _____of the Indenture] [Insert the Global Notes Legend, if applicable, pursuant to Section 2.06(g)(2) of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29AHP HEALTH PARTNERS, 2005 L-3 COMMUNICATIONS CORPORATION INC. By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: Executive Vice President ARDENT HEALTH PARTNERS, LLC By: /s/ Xxxxxxx X. Xxxxxxxxx Name: Xxxxxxx X. Xxxxxxxxx Title: Executive Vice President [Signature Page – Indenture] GUARANTORS: APCOMARDENT LEGACY HOLDINGS, LLC AHS LEGACY OPERATIONS LLC LHP HOSPITAL GROUP, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSAHS NEWCO 17, LLC AHS NEWCO 18, LLC AHS OKLAHOMA, INC. XXXXXXXX AHS HILLCREST HEALTHCARE SYSTEM, LLC AHS MANAGEMENT COMPANY, INC. HYGIENETICS ENVIRONMENTAL AHS EAST TEXAS HEALTH SYSTEM, LLC BSA HEALTH SYSTEM OF AMARILLO, LLC AHS NEW MEXICO HOLDINGS, INC. AHS KANSAS HEALTH SYSTEM, INC. SOUTHWEST MEDICAL ASSOCIATES, LLC XXXXXXXX HEALTH SYSTEM, INC. AHS ALBUQUERQUE HOLDINGS, LLC LHS SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSAHS CLAREMORE REGIONAL, HOSPITAL, LLC AHS OKLAHOMA HEART, LLC AHS XXXXXXX HOSPITAL, LLC AHS OKLAHOMA ORTHOPEDIC ACE, LLC AHS HENRYETTA HOSPITAL, LLC AHS OKLAHOMA PHYSICIAN GROUP, LLC AHS HILLCREST MEDICAL CENTER, LLC AHS MANAGEMENT SERVICES OF OKLAHOMA, LLC AHS XXXXX HOSPITAL, LLC XXXXXX MEDICAL CENTER, LLC AHS SOUTHCREST HOSPITAL, LLC AHS TULSA HOLDINGS, LLC RV PROPERTIES, LLC BSA HOSPITAL, LLC BSA HEALTH SYSTEM MANAGEMENT, LLC BSA HEALTH SYSTEM HOLDINGS, LLC BSA PHYSICIANS GROUP, INC. L-3 COMMUNICATIONS AEROMETBSA XXXXXXXXXX PHYSICIANS, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYBSA AMARILLO DIAGNOSTIC CLINIC, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSLHP OPERATIONS CO., INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGSLLC LHP MANAGEMENT SERVICES, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSILLC LHP TEXAS PHYSICIANS, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESLLC LHP MONTCLAIR LLC LHP PASCACK VALLEY, INC. L-3 COMMUNICATIONS ESSCOLLC LHP POCATELLO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LHP HH/K1LLEEN, LLC L-3 COMMUNICATIONS GOVERNMENT LHP BAY COUNTY, LLC LHP IT SERVICES, LLC LHP TEXAS MD SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMSATHENS HOSPITAL, LLC CARTHAGE HOSPITAL, LLC XXXXXXXXX HOSPITAL, LLC JACKSONVILLE HOSPITAL, LLC PITTSBURG HOSPITAL, LLC QUITMAN HOSPITAL, LLC TYLER REGIONAL HOSPITAL, LLC REHABILITATION HOSPITAL, LLC SPECIALTY HOSPITAL, LLC EAST TEXAS HOLDINGS, LLC ETMC PHYSICIAN GROUP, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESEAST TEXAS AIR ONE, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONLLC EAST TEXAS HOME HEALTH SERVICES, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx Xxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxxxxxx Name: Xxxxxxxxxxx Xxxxxxx X. Xxxxxxx Xxxxxxxxx Title: Executive Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE U.S BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx Xxxxxx X. Xxxxxx ---------------------------------------- Xxxxxxxxxxx Name: Xxxxx Xxxxxx X. Xxxxxx Xxxxxxxxxxx Title: Assistant Vice President EXHIBIT A [FORM OF FACE OF INITIAL NOTE] [Global Notes Legend] UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (Face “DTC”), NEW YORK, NEW YORK, TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO DTC, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE INDENTURE REFERRED TO ON THE REVERSE HEREOF. [Restricted Notes Legend] THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION. NEITHER THIS NOTE NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE OFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION. THE HOLDER OF THIS NOTE, BY ITS ACCEPTANCE HEREOF, AGREES ON ITS OWN BEHALF AND ON BEHALF OF ANY INVESTOR ACCOUNT FOR WHICH IT HAS PURCHASED SECURITIES TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE (THE “RESALE RESTRICTION TERMINATION DATE”) THAT IS [IN THE CASE OF RULE 144A NOTES: ONE YEAR] [IN THE CASE OF REGULATION S NOTES: 40 DAYS] AFTER THE LATER OF THE ORIGINAL ISSUE DATE HEREOF, THE ORIGINAL ISSUE DATE OF THE ISSUANCE OF ANY ADDITIONAL NOTES AND THE LAST DATE ON WHICH THE ISSUER OR ANY AFFILIATE OF THE ISSUER WAS THE OWNER OF THIS SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY), ONLY (A) TO THE ISSUER, (B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE SECURITIES ACT (“RULE 144A”), TO A PERSON IT REASONABLY BELIEVES IS A “QUALIFIED INSTITUTIONAL BUYER” AS DEFINED IN RULE 144A THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT, OR (E) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE ISSUER’S AND THE TRUSTEE’S RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER (1) PURSUANT TO CLAUSES (D) OR (E) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/ OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM, AND (2) IN EACH OF THE FOREGOING CASES, TO REQUIRE THAT A CERTIFICATE OF TRANSFER IN THE FORM APPEARING ON THIS NOTE IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO THE TRUSTEE. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE RESALE RESTRICTION TERMINATION DATE. [IN THE CASE OF REGULATION S NOTES: BY ITS ACQUISITION HEREOF, THE HOLDER HEREOF REPRESENTS THAT IT IS NOT A U.S. PERSON NOR IS IT PURCHASING FOR THE ACCOUNT OF A U.S. PERSON AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH REGULATION S UNDER THE SECURITIES ACT.] [Temporary Regulation S Legend] THIS NOTE (OR ITS PREDECESSOR) WAS ORIGINALLY ISSUED IN A TRANSACTION ORIGINALLY EXEMPT FROM REGISTRATION UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND MAY NOT BE TRANSFERRED IN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, ANY U.S. PERSON EXCEPT PURSUANT TO AN AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND ALL APPLICABLE STATE SECURITIES LAWS. TERMS USED ABOVE HAVE THE MEANINGS GIVEN TO THEM IN REGULATION S UNDER THE SECURITIES ACT. CUSIP: [ ] ISIN: [ ]1 [RULE 144A][REGULATION S][GLOBAL] NOTE 9.75% Senior Notes due 2026 No. [ ] [$ ] AHP HEALTH PARTNERS, INC., a Delaware corporation, [promises to pay to CEDE & CO. or registered assigns, the principal sum of [ United States Dollars (as such sum may be increased or decrease as reflected on the Schedule of Exchanges of Interests in the Global Note attached hereto) on July 15, 2026.] [USE ONLY FOR GLOBAL NOTES.] [promises to pay to [ ] or registered assigns, the principal sum of [ United States Dollars] on [ ], [USE ONLY FOR DEFINITIVE NOTES.]] Interest Payment Dates: January 15 and July 15 Record Dates: January 1 and July 1 Rule 144A Note ISIN: US00150LAA98 Regulation S Note CUSIP: U0084L AA7 Regulation S Note ISIN: USU0084LAA71 IN WITNESS HEREOF, the Company has caused this instrument to be duly executed. Dated: [ ] AHP HEALTH PARTNERS, INC. By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: U.S. BANK NATIONAL ASSOCIATION, as Trustee By: Authorized Signatory [Back of Note) -------------------------------------------------------------------------------- CUSIP _____] 9.75% Senior Notes due 2026 Capitalized terms used herein shall have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. 106 [Signatures on following pagesSIGNATURES] 107 SIGNATURES Dated as of July 29March 23, 2005 L-3 COMMUNICATIONS CORPORATION 2004 CALPINE GENERATING COMPANY, LLC By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx Xxxxx Xxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxx Xxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner CALGEN FINANCE CORP. By: /s/ Xxxxxxxxxxx X. Xxxxxxx Xxxxx Xxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxx Xxxx Title: Authorized Person Vice President [Third Priority Indenture - Calpine Generating Company, LLC and CalGen Finance Corp.] THE BANK OF NEW YORKGUARANTORS: CALGEN EXPANSION COMPANY, LLC CPN FREESTONE, LLC CALPINE FREESTONE, LLC CALPINE FREESTONE ENERGY GP, LLC CALPINE CHANNEL ENERGY CENTER LP, LLC CALPINE CHANNEL ENERGY CENTER GP, LLC CHANNEL POWER GP, LLC CALGEN EQUIPMENT FINANCE HOLDINGS, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY ONE, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY THREE LLC CALGEN EQUIPMENT FINANCE COMPANY, LLC NUECES BAY ENERGY LLC CALPINE NORTHBROOK SOUTHCOAST INVESTORS, LLC CALPINE CORPUS CHRISTI ENERGY GP, LLC ZION ENERGY LLC LOS MEDANOS ENERGY CENTER, LLC XXXXXX ENERGY CENTER, LLC XXXXXXXX ENERGY LLC DECATUR ENERGY CENTER, LLC CALPINE XXXXX POWER I, LLC CALPINE XXXXX POWER II, LLC CALPINE BAYTOWN ENERGY CENTER LP, LLC CALPINE BAYTOWN ENERGY CENTER GP, LLC BAYTOWN POWER GP, LLC COLUMBIA ENERGY LLC DELTA ENERGY CENTER, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY TWO, LLC PASTORIA ENERGY FACILITY L.L.C. CALPINE PASTORIA HOLDINGS, LLC Executing this Third Priority Indenture on behalf of and so as to bind each of the limited liability companies named above under the caption "The Guarantors" By: /s/ Xxxxx Xxxx ------------------------------------------ Name: Xxxxx Xxxx Title: Vice President 108 THE GUARANTORS: FREESTONE POWER GENERATION LP CALPINE FREESTONE ENERGY, LP CALPINE POWER EQUIPMENT LP CHANNEL POWER, LP CHANNEL ENERGY CENTER, LP CALPINE CORPUS CHRISTI ENERGY, LP CORPUS CHRISTI COGENERATION LP CALPINE XXXXX POWER, L.P. BAYTOWN ENERGY CENTER, LP BAYTOWN POWER, LP Executing this Third Priority Indenture on behalf of and so as to bind each of the limited partnerships named above under the caption "The Guarantors" By: /s/ Xxxxx Xxxx ------------------------------------------ Name: Xxxxx Xxxx Title: Vice President 109 WILMINGTON TRUST FSB, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- XxXxxxxx ------------------------------------------ Name: Xxxxx X. Xxxxxx XxXxxxxx Title: Assistant Vice President [Third Priority Indenture - Calpine Generating Company, LLC and CalGen Finance Corp.] SCHEDULE A PERMITTED PRIOR LIENS EXISTING ON THE CLOSING DATE See attached. SCHEDULE A-1 Lien in favor of General Electric Capital Corporation relating to the lease of a crane by Freestone Power Generation LP. (Delaware UCC Financing Statement #03-0026032006 - April 30,2003) EXHIBIT A (A-1 [Face of Note) ] -------------------------------------------------------------------------------- CUSIP _____CUSIP[13135B AC 0--144A] [13135B AG 1--Exchange] ISIN [US13135BAC00--144A] [US1313135BAG14--Exchange] Third Priority Secured Boating Rate Note due 2011 No.------ $ -------- CALPINE GENERATING COMPANY, LLC CALGEN FINANCE CORP. promises to pay to ---------------------------------- or registered assigns, the principal sum of ---------------------------------------------------------- Dollars on April 1,2011.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 74 SIGNATURES Dated as of July 29November 25, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM1998 SFX ENTERTAINMENT, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSBGP ACQUISITION, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHL.L.C. By: SFX ENTERTAINMENT, INC., as Guarantors managing member SFX NETWORK GROUP, L.L.C. By: SFX ENTERTAINMENT, INC., as managing member WESTBURY MUSIC FAIR, L.L.C. By: SFX ENTERTAINMENT, INC., as managing member By: /s/ Xxxxxxxxxxx Xxxxxx X. Xxxxxxx ---------------------------------------- Xxxxx ------------------------------------ Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx Xxxxx Title: General Counsel, Executive Vice President and And Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor AKG, INC. AMERICAN ARTISTS, INC. AMERICAN ARTISTS LIMITED, INC. AMPHITHEATER ENTERTAINMENT PARTNERSHIP By: L-3 COMMUNICATIONS AIS GP CORPORATIONSM/PACE, INC., as General Partner general partner ANT THEATRICAL PRODUCTIONS, INC. ARDEE FESTIVALS N.J. INC. Indenture signature page - 1 ARDEE PRODUCTIONS, LTD. ATLANTA CONCERTS, INC. XXXXXX & XXXX, INC. AVALON ACQUISITION CORP. BEACH CONCERTS, INC. BG PRESENTS, INC. XXXX XXXXXX ENTERPRISES, INC. XXXX XXXXXX MANAGEMENT, INC. XXXX XXXXXX PRESENTS, INC. BOSTON PLAYHOUSE REALTY, INC. BOYLSTON STREET THEATRE CORP. BROADWAY CONCERTS, INC. BROADWAY SERIES ASSOCIATES, INC. BROADWAY SERIES MANAGEMENT GROUP, INC. CAMARILLO AMPHITHEATER MANAGING PARTNERS, INC. Indenture signature page - 2 CHEVA TOURING COMPANY By: MAGICWORKS ENTERTAINMENT INCORPORATED, as a majority holder CONCERTS, INC. CONNECTICUT AMPHITHEATER DEVELOPMENT CORPORATION CONNECTICUT CONCERTS INCORPORATED CONNECTICUT PERFORMING ARTS, INC. CONN TICKETING COMPANY By: NORTHEAST TICKETING COMPANY and SOUTHEAST TICKETING COMPANY, as general partners CONTEMPORARY GROUP ACQUISITION CORP. CONTEMPORARY GROUP, INC. CONTEMPORARY MARKETING, INC. CONTEMPORARY PRODUCTIONS INCORPORATED CONTEMPORARY SPORTS INCORPORATED XXXXXX AND XXXXXX MANAGEMENT CO. DEER CREEK AMPHITHEATER CONCERTS, INC. DEER CREEK AMPHITHEATER CONCERTS, L.P. By: DEER CREEK AMPHITHEATER CONCERTS, INC., as general partner DELSENER/XXXXXX ENTERPRISES, LTD. XXXXXXXX-XXXXXX, INC. XXXXXXXX-XXXXXX PROMOTIONS, INC. DLC CORP. DUMB DEAL, INC. EAGLE EYE ENTERTAINMENT INC. EAGLE EYE ENTERTAINMENT USA INC. EMI ACQUISITION SUB, INC. ENTERTAINMENT PERFORMING ARTS, INC. EVENT MERCHANDISING INC. EXIT 116 REVISITED, INC. XXXX ASSOCIATES MANAGEMENT ENTERPRISES, INC. FESTIVAL PRODUCTIONS, INC. FILLMORE CORPORATION FILLMORE FINGERS, INC. GERSHWINS' FASCINATING RHYTHM By: MAGICWORKS ENTERTAINMENT INCORPORATED, as a majority holder GSAC PARTNERS By: SM/PACE INC., as the parent corporation of the general partner HIGH COTTON, INC. IN HOUSE TICKETS, INC. XXXXXX XXXXXXX AMPHITHEATER By: AVALON ACQUISITION CORP., as general partner JEFKO TOURING COMPANY By: MAGICWORKS ENTERTAINMENT INCORPORATED, as a majority holder MAGICWORKS CONCERTS, INC. MAGICWORKS ENTERTAINMENT INCORPORATED MAGICWORKS ENTERTAINMENT INTERNATIONAL, INC. MAGICWORKS EXHIBITIONS, INC. MAGICWORKS EXHIBITIONS JOINT VENTURE By: MAGICWORKS ENTERTAINMENT INCORPORATED, as a majority holder MAGICWORKS FASHION MANAGEMENT, INC. MAGICWORKS MERCHANDISING, INC. MAGICWORKS SPORTS MANAGEMENT, INC. MAGICWORKS THEATRICALS, INC. MAGICWORKS TRANSPORTATION, INC. MAGICWORKS WEST, INC. MELODY TENT AND AMPHITHEATER, INC. MURAT CENTER CONCERTS, INC. MURAT CENTER CONCERTS, L.P. By: MURAT CENTER CONCERTS, INC., as general partner NEW AVALON, INC. NOC, INC. NORTHEAST TICKETING COMPANY OAKDALE THEATER CONCERTS, INC. OLD PCI, INC. PACE AEP ACQUISITION, INC. PACE AMPHITHEATER MANAGEMENT, INC. PACE AMPHITHEATERS, INC. PACE BAYOU PLACE, INC. PACE COMMUNICATIONS, INC. PACE CONCERTS, LTD. By: PACE CONCERTS GP, INC., as general partner PACE CONCERTS GP, INC. PACE ENTERTAINMENT CORPORATION PACE ENTERTAINMENT GROUP, LTD. By: PACE ENTERTAINMENT GP CORP., as general partner PACE ENTERTAINMENT GP CORP. XXXX XXXXXX KEYNES, INC. PACE MOTOR SPORTS, INC. PACE MUSIC GROUP, INC. PACE PRODUCTIONS, INC. PACE THEATRICAL GROUP, INC. PACE TOURING, INC. PACE U.K. HOLDING CORPORATION PAVILION PARTNERS By: SM/PACE, INC., as managing partner PEC, INC. PERFORMING ARTS MANAGEMENT OF NORTH MIAMI, INC. POLARIS AMPHITHEATER CONCERTS, INC. PTG-FLORIDA, INC. QN CORP. RUGRATS AMERICAN TOUR, LTD. By: PACE VARIETY ENTERTAINMENT, INC., as general partner SFX ACQUISITION CORP. SFX BROADCASTING OF THE MIDWEST, INC. SFX CONCERTS, INC. SFX DELAWARE, INC. SFX RADIO NETWORK, INC. SFX SPORTS GROUP, INC. SFX TOURING, INC. XXXXXX XXXXXXX, INC. SHORELINE AMPHITHEATRE, LTD. SHORELINE AMPHITHEATRE PARTNERS By: SHORELINE AMPHITHEATRE, LTD., as general partner SM/PACE, INC. SOUTHEAST TICKETING COMPANY SOUTHERN PROMOTIONS, INC. STEP ENTERTAINMENT SERVICES INC. SUNSHINE CONCERTS, L.L.C. By: SFX BROADCASTING OF THE MIDWEST, INC., as the sole member SUNSHINE DESIGNS, INC. SUNSHINE DESIGNS, L.P. By: SUNSHINE DESIGNS, INC., as general partner SUNTEX ACQUISITION, INC. SUNTEX ACQUISITION, L.P. By: SUNTEX ACQUISITION, INC., as general partner TAP PRODUCTIONS, INC. TBA MEDIA, INC. THE ALBUM NETWORK, INC. THE GIN GAME TOURING COMPANY By: MAGICWORKS ENTERTAINMENT INCORPORATED, as a majority holder INTERNATIONAL MUSIC (CANADA) INC. THE WEDDING TOUR COMPANY TICKET SERVICE, INC. CONCERT PRODUCTIONS (UK) LIMITED INTERNATIONAL MUSIC (USA) INC. INTERNATIONAL MUSIC LTD. INTERNATIONAL MUSIC TOUR I LTD. INTERNATIONAL MUSIC TOUR II LTD. INTERNATIONAL MUSIC TOUR I (USA) INC. INTERNATIONAL MUSIC TOUR II (USA) INC. TOURING ARTISTS GROUP, INC. (FL) TOURING PRODUCTIONS, INC. TREMONT STREET THEATRE CORPORATION II, INC. TUNEFUL COMPANY, INC. WARRENTON STREET THEATRE CORP. WEST COAST AMPHITHEATER CORP. WESTERN AMPHITHEATER PARTNERS By: PAVILION PARTNERS, as general partner and SM/PACE, INC., as general partner of PAVILION PARTNERS WOLFGANG RECORDS By: /s/ Xxxxxxxxxxx Xxxxxx X. Xxxxxxx ---------------------------------------- Xxxxx Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx Xxxxx Title: Executive Vice President AMERICAN BROADWAY, INC. CONCERT PRODUCTIONS INTERNATIONAL B.V. CONNECTICUT PERFORMING ARTS PARTNERS By: CONNECTICUT AMPHITHEATER DEVELOPMENT CORPORATION and NOC, INC., as general partners FINANCIAL ADVISORY MANAGEMENT ENTERPRISES, INC. IRVING PLAZA CONCERTS, INC. MAGICWORKS ENTERTAINMENT ASIA LIMITED MARCO ENTERTAINMENT, INC. PACE U.K. PACE VARIETY ENTERTAINMENT, INC. TOURING ARTISTS GROUP, INC. (OH) By: /s/ Xxxxxx X. Xxxxx ------------------------------------ Name: Xxxxxx X. Xxxxx Title: Authorized Person Agent THE CHASE MANHATTAN BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Xxxxxxxx Xxxxxxxx ------------------------------------ Name: Xxxxx X. Xxxxxx Xxxxxxxx Xxxxxxxx Title: Assistant Vice President EXHIBIT A A1 (Face of Note) -------------------------------------------------------------------------------- CUSIP _____)

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29ANDEAVOR LOGISTICS LP By: Tesoro Logistics GP, 2005 L-3 COMMUNICATIONS CORPORATION LLC, its general partner By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxxx Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INCXxxxxxxx Vice President and Treasurer TESORO LOGISTICS FINANCE CORP. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx Xxxxxxx X. Xxxxxxxx Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Xxxxxxxx Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS Treasurer GREEN RIVER PROCESSING, LLC, ANDEAVOR FIELD SERVICES LLC, ANDEAVOR MIDSTREAM PARTNERS GP CORPORATIONLLC, as General Partner ANDEAVOR MIDSTREAM PARTNERS OPERATING LLC, ANDEAVOR GATHERING I LLC, TESORO ALASKA PIPELINE COMPANY LLC, TESORO ALASKA TERMINALS LLC, TESORO HIGH PLAINS PIPELINE COMPANY LLC, TESORO LOGISTICS NORTHWEST PIPELINE LLC, TESORO LOGISTICS OPERATIONS LLC, TESORO LOGISTICS PIPELINES LLC, TESORO SOCAL PIPELINE COMPANY LLC WESTERN REFINING PIPELINE, LLC WESTERN REFINING WHOLESALE, LLC WESTERN REFINING TERMINALS, LLC WNRL FINANCE CORP. WNRL ENERGY GP, LLC WNRL ENERGY, LLC WESTERN REFINING PRODUCT TRANSPORT, LLC By: /s/ Xxxxxxxxxxx Xxxxxxx X. Xxxxxxxx Xxxxxxx ---------------------------------------- NameX. Xxxxxxxx Vice President and Treasurer ANDEAVOR MIDSTREAM PARTNERS LP, By: Xxxxxxxxxxx Andeavor Midstream Partners GP LLC, its general partner By: /s/ Xxxxxxx X. Xxxxxxxx Xxxxxxx TitleX. Xxxxxxxx Vice President and Treasurer RENDEZVOUS PIPELINE COMPANY, LLC, By: Authorized Person THE Andeavor Gathering I LLC, its sole member and sole manager By: /s/ Xxxxxxx X. Xxxxxxxx Xxxxxxx X. Xxxxxxxx Vice President and Treasurer WESTERN REFINING LOGISTICS, LP By: Western Refining Logistics GP, LLC, its general partner By: /s/ Xxxxxxx X. Xxxxxxxx Xxxxxxx X. Xxxxxxxx Vice President and Treasurer U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Xxxxxxxx Name: Xxxxx X. Xxxxxx Xxxxxxxx Title: Assistant Vice President EXHIBITS Exhibit A FORM OF 2022 NOTE Exhibit B FORM OF 2027 NOTE Exhibit C FORM OF 2047 NOTE Exhibit D FORM OF SUPPLEMENTAL INDENTURE – ADDITIONAL SUBSIDIARY GUARANTEES EXHIBIT A [Insert the Global Note Legends, if applicable, pursuant to the provisions of the Indenture] [THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (I) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO ARTICLE II OF THE INDENTURE, (II) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (III) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (IV) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE ISSUERS OR ANY SUCCESSOR THERETO. UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE), TO THE ISSUERS OR ANY SUCCESSOR THERETO OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] (Face of Note) -------------------------------------------------------------------------------- CUSIP _____CUSIP: 03350W AA7 ISIN: US03350WAA71 3.500% Senior Notes due 2022 No. Principal Amount at Maturity: U.S. $ ANDEAVOR LOGISTICS LP and TESORO LOGISTICS FINANCE CORP. Andeavor Logistics LP, a Delaware limited partnership (“Andeavor Logistics”) and Tesoro Logistics Finance Corp., a Delaware corporation (“Finance Corp.” and together with Andeavor Logistics, the “Issuers”), promise to pay to Cede & Co, or registered assigns, the principal sum of Dollars on December 1, 2022 [or such greater or lesser amount as may be indicated on Schedule A hereto].1 Interest Payment Dates: June 1 and December 1, commencing on June 1, 2018. Record Dates: May 15 and November 15. Additional provisions of this Note are set forth on the other side of this Note. ANDEAVOR LOGISTICS LP By: Tesoro Logistics GP, LLC, its general partner By: Name: Xxxxxxx X. Xxxxxxxx Title: Vice President and Treasurer TESORO LOGISTICS FINANCE CORP. By: Name: Xxxxxxx X. Xxxxxxxx Title: Vice President and Treasurer 1 If this Note is a Global Note, include this provision. This is one of the Global Notes referred to in the within-mentioned Indenture: U.S. BANK NATIONAL ASSOCIATION, as Trustee By: Dated: Authorized Signatory (Back of Note) 3.500% Senior Notes due 2022 Capitalized terms used herein shall have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. 80 [Signatures on following pagespage] 81 SIGNATURES Dated as of July 29October 10, 2005 L-3 COMMUNICATIONS CORPORATION 2003 PARKER DRILLING COMPANY By: /s/ Xxxxxxx JAMES X. Xxxxxxxxx ------------------------------------ XXALEN --------------------------------- Name: Xxxxxxx X. Xxxxxxxxx James W. Whalen Title: Senior Vice Pxxxxxxxx & XXX GUARANTORS: APCOMANACHORETA, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSCANADIAN RIG LEASING, INC. XXXXXXXX CHOCTAW INTERNATIONAL RIG CORP. CREEK INTERNATIONAL RIG CORP. DGH, INC. HYGIENETICS ENVIRONMENTAL INDOCORP OF OKLAHOMA, INC. PARDRIL, INC. PARKER AVIATION, INC. PARKER DRILLING (XXXXXXTAN), LTD. PARKEX XXXXLING COMPANY EASTERN HEMISPHERE, LTD. PARKER DRILLING COMPANY INTERNATIONAL, INC. XARKER DRILLING COMPANY INTERNATIONAL LIMITED PARKER DRILLING COMPANY LIMITED (NEVADA) XXXXER DRILLING COMPANY NORTH AMERICA, INC. XARKER DRILLING COMPANY OF ARGENTINA, INC. XXRKER DRILLING COMPANY OF BOLIVIA, INC. XXXXER DRILLING COMPANY OF NEW GUINEA, INC. XARKER DRILLING COMPANY OF NIGER PARKER XXXXXING COMPANY OF OKLAHOMA, INCORPORATED PARKER DRILLING COMPANY OF SINGAPORE, LTD. XXRKER DRILLING COMPANY OF SOUTH AMERICA, INC. PARKER DRILLING OFFSHORE CORPORATION PAXXXX XRILLING OFFSHORE INTERNATIONAL, INC. PARKER NORTH AMERICA OPERATIONS, INC. PXXXXX TECHNOLOGY, INC. PARKER TECHNOLOXX, XXC PARKER USA DRILLXXX XXMPANY PARKER-VSE, XXX. QUAIL USA, LLC SELECTIVE DRILLING CORPORATION UNIVERSAL RIG SERVICE CORP. By: /s/ DAVID W. TUCKER --------------------------------------------- Name: David W. Tucker Title: Vice Presidexx Indenture - Signature Page PARKER DRILLING COMPANY OF MEXICO, LLC XXXXXX DRILLING OFFSHORE USA, LLC By: /x/ XXUCE J. KORVER ---------------------------------------------- Name: Bruce J. Korver Title: Vice Presidenx PARKER DRILLING MANAGEMENT SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- DAVID W. TUCKER --------------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx David W. Tucker Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS Presidexx PARKER OFFSHORE RESOURCES, L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION/x/ XXXID W. TUCKER --------------------------------------------- Name: David W. Tucker Title: President, as Pxxxxx Xxxxxxxx Management Services, Xxx., General Partner PARKER TOOLS, LLC By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- TOM JUNK --------------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Tom Junk Title: Authorized Person THE President PARKER USA RESOURCES, LLC By: /s/ TOX XXXX --------------------------------------------- Name: Tom Junk Title: President Indenture - Signature Page PD MANAGEMENT RESOURCES, L.P. By: /s/ DAVID W. TUCKER --------------------------------------------- Name: David W. Tucker Title: President, Pxxxxx Xxxxxxxx Management Services, Xxx., General Partner QUAIL TOOLS, LP By: /s/ DAVID W. TUCKER --------------------------------------------- Name: David W. Tucker Title: Vice Presidexx, Xxxxx XXX, LLC, General Partner Indenture - Signature Page JPMORGAN CHASE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- REBECCA A. NEWMAN --------------------------------------------- Name: Xxxxx X. Xxxxxx Rebecca A. Newman Title: Assistant Vice President Presixxxx xxx Xxxxx Xxficer Indenture - Signature Page EXHIBIT A (CUSIP [Face of Note) -------------------------------------------------------------------------------- CUSIP ] 9 5/8% Senior Notes due 2013 No. 001 Principal Amount $ PARKER DRILLING COMPANY promises to pay to CEDE & CO., or registered xxxxxxs, the principal sum of DOLLARS ($_____________) on October 1, 2013. Interest Payment Dates: April 1 and October 1, commencing April 1, 2004 Record Dates: March 15 and September 15 Dated: October ___, 2003 PARKER DRILLING COMPANY By: ----------------------------------- Name: Title: This is one of the Global Notes referred to in the within-mentioned Indenture: JPMORGAN CHASE BANK as Trustee By: -------------------------------- Authorized Signatory [Back of Note] 9 5/8% Senior Notes due 2013 [Insert the Global Note Legend, if applicable, pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable, pursuant to the provisions of the Indenture] 9 5/8% Senior Notes due 2013 Capitalized terms used herein shall have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29December 14, 2005 L-3 COMMUNICATIONS CORPORATION 1998 AEI RESOURCES, INC. By: /s/ Xxxx X. Xxxx _____________________________________ Name: Title: AEI HOLDING COMPANY, INC. By: /s/ Xxxx X. Xxxx ___________________________________ Name: Title: IBJ XXXXXXXX BANK & TRUST COMPANY, as trustee By: /s/ Xxxxxxx Xxxxxxx ___________________________________ Name: Xxxxxxx Xxxxxxx Title: Assistant Vice President Confirmed and agreed to as Guarantors: 17 WEST MINING, INC., ACECO, INC., XXXXXXXXX MINING, INC., AEI COAL SALES COMPANY, INC., AEI RESOURCES HOLDING, INC., AMERICOAL DEVELOPMENT COMPANY, APPALACHIAN REALTY COMPANY, AYRSHIRE LAND COMPANY, BELLAIRE TRUCKING COMPANY, BLUEGRASS COAL DEVELOPMENT COMPANY, BOWIE RESOURCES LIMITED CC COAL COMPANY, COAL VENTURES HOLDING COMPANY, INC., EAST KENTUCKY ENERGY CORPORATION, EMPLOYEE BENEFITS MANAGEMENT, INC., ENCOAL CORPORATION, ENERZ CORPORATION, EVERGREEN MINING COMPANY, FAIRVIEW LAND COMPANY, FRANKLIN COAL SALES COMPANY, GRASSY COVE COAL MINING COMPANY, HERITAGE MINING COMPANY, HIGHLAND COAL, INC., XXXXX-XXXXX CO., INC., XXXXXX COAL COMPANY, XXXXXX RESOURCES, INC., XXXXXX RESOURCES MANAGEMENT, INC., MEADOWLARK, INC., MEGA MINERALS, INC., MIDWEST COAL SALES COMPANY, MID-VOL LEASING, INC. MINING TECHNOLOGIES, INC., MOUNTAIN-CLAY, INCORPORATED (d/b/a Mountain Clay, Inc.), PHOENIX LAND COMPANY, PREMIUM PROCESSING, INC., PREMIUM COAL DEVELOPMENT COMPANY, PRO-LAND, INC. (d/b/a Kem Coal Company) R. & F. COAL COMPANY, RIVER COAL COMPANY, INC., ROARING CREEK COAL COMPANY, SHIPYARD RIVER COAL TERMINAL COMPANY, STRAIGHT CREEK COAL RESOURCES COMPANY, TENNESSEE MINING, INC., TURRIS COAL COMPANY, WYOMING COAL TECHNOLOGY, INC., XXXXXXX COAL HOLDING COMPANY, XXXXXXX ENVIRONMENTAL SERVICES COMPANY, ZENERGY, INC., each as Guarantor By: /s/ Xxxx X. Xxxx ___________________________________ Name: Title: BEECH COAL COMPANY, CANNELTON, INC., CANNELTON INDUSTRIES, INC., CANNELTON LAND COMPANY, CANNELTON SALES COMPANY, XXXX COAL & DOCK COMPANY, XXXXXX HOLDINGS, INC., KANAWHA CORPORATION, KINDILL HOLDING, INC., KINDILL MINING, INC., MIDWEST COAL COMPANY , MOUNTAINEER COAL DEVELOPMENT COMPANY, MOUNTAIN COALS CORPORATION, OLD BEN COAL COMPANY, WEST VIRGINIA-INDIANA COAL HOLDING COMPANY, INC., each as Guarantor By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ ___________________________________ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. of Administration BENTLEY COAL COMPANY, SKYLINE COAL COMPANY, KENTUCKY PRINCE MINING COMPANY, each as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATIONGRASSY COVE COAL MINING COMPANY, ROARING CREEK COAL COMPANY, each as General Partner of each of the entities listed above By: /s/ Xxxxxxxxxxx Xxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP Xxxx ___________________________________ Name: Xxxx X. Xxxx Title: NUCOAL, LLC, as Guarantor By: AMERICOAL DEVELOPMENT COMPANY ENCOAL CORPORATION each as Member By: /s/ Xxxx X. Xxxx ___________________________________ Name: Xxxx X. Xxxx Title: EXHIBIT A-1 (FACE OF NOTE) ================================================================================

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 112 SIGNATURES Dated as of July 291, 2005 L-3 COMMUNICATIONS CORPORATION 2003 RELIANT RESOURCES, INC. By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ WILLIAM S. WALLER -------------------------------------- Name: Xxxxxxx X. Xxxxxxxxx William S. Waller Title: GUARANTORS: APCOMVice Presxxxxx xxx Xxxxxxxer GUIDESTREET, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSINSYNC INTERNET SERVICES, INCORPORATED REEVES COUNTY LAND ASSOCIATES, LLC XXXXXXT ENERGY ARROW CANYON, LLC RELIANT ENERGY ATLANTIC, LLC RELIANT ENERGY AURORA DEVELOPMENT, LLC RELIANT ENERGY AURORA HOLDING, LLC RELIANT ENERGY BIGHORN, LLC RELIANT ENERGY BROADBAND, INC. XXXXXXXX RELIANT ENERGY CALIFORNIA HOLDINGS, LLC RELIANT ENERGY CHOCTAW COUNTY, LLC RELIANT ENERGY COMMUNICATIONS, INC. HYGIENETICS ENVIRONMENTAL RELIANT ENERGY CONSTRUCTION, LLC By: /s/ WILLIAM S. WALLER, JR. -------------------------------------- Name: William S. Waller, Jr. Title: Vicx Xxxxxxxxx xxx Xxxxxxrer RELIANT ENERGY COOLWATER, INC. RELIANT ENERGY CORPORATE SERVICES, LLC RELIANT ENERGY CUSTOMER CARE SERVICES, LLC RELIANT ENERGY DEER PARK, INC. RELIANT ENERGY DESERT BASIN, LLC RELIANT ENERGY DEVELOPMENT SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSRELIANT ENERGY ELECTRIC SOLUTIONS, LLC RELIANT ENERGY ELLWOOD, INC. L-3 COMMUNICATIONS AEROMETRELIANT ENERGY EQUIPMENT COMPANY, LLC RELIANT ENERGY ERIE WEST, LLC RELIANT ENERGY ETIWANDA, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE RELIANT ENERGY FLORIDA HOLDINGS, LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYRELIANT ENERGY FUNDING, LLC RELIANT ENERGY GAS STORAGE, LLC RELIANT ENERGY GILBERT, LLC RELIANT ENERGY HUNTERSXXXX, XLC RELIANT ENERGY INDIAN RIVER, LLC RELIANT ENERGY KEY/CON FUELS, LLC RELIANT ENERGY MANDALAY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSRELIANT ENERGY MID-ATLANTIC DEVELOPMENT, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE RELIANT ENERGY NET VENTURES, INC. By: /s/ WILLIAM S. WALLER, JR. -------------------------------------- Name: William S. Waller, Jr. Title: Vicx Xxxxxxxxx xxx Xxxxxxrer RELIANT ENERGY NEW SMYRNA BEACH, LLC RELIANT ENERGY NORTHEAST GENERATION, INC. RELIANT ENERGY NORTHEAST HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIRELIANT ENERGY ORMOND BEACH, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESRELIANT ENERGY OSCEOLA, LLC RELIANT ENERGY PARTSCO, LLC RELIANT ENERGY PORTLAND, LLC RELIANT ENERGY POWER GENERATION, INC. L-3 COMMUNICATIONS ESSCORELIANT ENERGY POWER OPERATIONS I, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION RELIANT ENERGY POWER OPERATIONS II, INC. RELIANT ENERGY RENEWABLES ATASCOCITA GP, LLC L-3 COMMUNICATIONS FLIGHT CAPITAL RELIANT ENERGY RENEWABLES BAYTOWN GP, LLC L-3 COMMUNICATIONS GOVERNMENT RELIANT ENERGY RENEWABLES BLUE BONNET GP, LLC RELIANT ENERGY RENEWABLES COASTAL PLAINS GP, LLC RELIANT ENERGY RENEWABLES CONROE GP, LLC RELIANT ENERGY RENEWABLES FORT WORTH GP, LLC RELIANT ENERGY RENEWABLES SECURITY GP, LLC RELIANT ENERGY RENEWABLES, INC. By: /s/ WILLIAM S. WALLER, JR. -------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RETAIL HOLDINGS, LLC RELIANT ENERGY RETAIL SERVICES, LLC RELIANT ENERGY SABINE (TEXAS), INC. RELIANT ENERGY SERVICES DESERT BASIN, LLC RELIANT ENERGY SERVICES INTERNATIONAL, INC. RELIANT ENERGY SERVICES NEW MEXICO, LLC RELIANT ENERGY SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMSRELIANT ENERGY SEWARD, LLC RELIANT ENERGY SHELBY DXXXXXXMENT CORP. RELIANT ENERGY SHELBY HOLDING CORP. RELIANT ENERGY SIGNAL PEAK, LLC RELIANT ENERGY SOLUTIONS, LLC RELIANT ENERGY SOLUTIONS CALIFORNIA, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESRELIANT ENERGY SOLUTIONS EAST, LLC RELIANT ENERGY SOLUTIONS HOLDINGS, LLC RELIANT ENERGY SOLUTIONS WEST, LLC RELIANT ENERGY TITUS, LLC RELIANT ENERGY TRADING EXXXXXGE, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONRELIANT ENERGY VENTURES, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSBy: /s/ WILLIAM S. WALLER, JR. -------------------------------------- Name: William S. Waller, Jr. Title: Vicx Xxxxxxxxx xxx Xxxxxxrer RELIANT ENERGY WHOLESALE SERVICE COMPANY RELIANT ENERGY WINTER HAVEN, LLC RELIANT RESOURCES INTERNATIONAL SERVICES, INC. L-3 COMMUNICATIONS SONOMA EORELIANTENERGY.COM, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRIBy: /s/ WILXXXX X. XXXXXX, XR. -------------------------------------- Name: William S. Waller, Jr. Title: Vicx Xxxxxxxxx xxx Xxxxxxrer RELIANT ENERGY EUROPE TRADING & MARKETING, INC. PAC ORD INCRELIANT ENERGY SERVICES MID-STREAM, LLC STAREN POWER, LLC TEXAS STAR ENERGY COMPANY By: /s/ WILLIAM S. WALLER, JR. POWER PARAGON-------------------------------------- Name: William S. Waller, Jr. Title: Trexxxxxx RELIANT ENERGY CAPTRADES HOLDING CORP. RELIANT ENERGY SABINE (DELAWARE), INC. SHIP ANALYTICSRELIANT ENERGY RENEWABLES HOLDINGS II, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- PATRICIA GENZEL -------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Patricia Genzel Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor RELIANT ENERGY AURORA I, LP RELIANT ENERGY AURORA II, LP By: L-3 COMMUNICATIONS AIS GP CORPORATIONReliant Energy Auxxxx Xxxxlopment, as LLC, each of its General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx WILLIAM S. WALLER, JR. -------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY AURORA, LP By: Reliant Energy Aurora I, LP, its General Partner By: Reliant Energy Aurora Development, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx William S. Waller, Jr. Title: Authorized Person THE BANK OF NEW YORKVixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES ATASCOCITA, LP By: Reliant Energy Renewables Atascocita GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES BAYTOWN, LP By: Reliant Energy Renewables Baytown GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES BLUE BONNET, LP By: Reliant Energy Renewables Blue Bonnet GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES COASTAL PLAINS, LP By: Reliant Energy Renewables Coastal Plains GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES CONROE, LP By: Reliant Energy Renewables Conroe GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES FORT WORTH, LP By: Reliant Energy Renewables Fort Worth GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES SECURITY, LP By: Reliant Energy Renewables Security GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY SHELBY COUNTY II, LP RELIANT ENERGY SHELBY COUNTY, LP By: Reliant Energy Shelby I, LP, each of its General Partner By: Reliant Energy Shelby Development Corp., its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer 113 WILMINGTON TRUST COMPANY, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- JAMES McGINLEY -------------------------------------- Name: Xxxxx X. Xxxxxx James McGinley Title: Assistant Vice President Authorixxx Xxxxxxxxx SCHEDULE I SCHEDULE OF GUARANTORS The following schedule lists each Guarantor under the Indenture as of the date of the Indenture: Choctaw County Trust, a Delaware business trust GuideStreet, Inc., a Delaware corporation Hunterstown Trust, a Delaware business trust Insync Internet Services, Incorporated, a Texas corporation Reeves County Land Associates, LLC, a Delaware limited liability compaxx Xxliant Energy Arrow Canyon, LLC, a Delaware limited liability company Reliant Energy Atlantic, LLC, a Delaware limited liability company Reliant Energy Aurora Development, LLC, a Delaware limited liability company Reliant Energy Aurora Holding, LLC, a Delaware limited liability company Reliant Energy Aurora I, LP, a Delaware limited partnership Reliant Energy Aurora II, LP, a Delaware limited partnership Reliant Energy Aurora, XX, x Xxxaware limited partnership Reliant Energy Bighorn, LLC, a Delaware limited liability company Reliant Energy Broadband, Inc., a Delaware corporation Reliant Energy California Holdings, LLC, a Delaware limited liability company Reliant Energy CapTrades Holding Corp., a Delaware corporation Reliant Energy Choctaw County, LLC, a Mississippi limited liability company Reliant Energy Communications, Inc., a Delaware corporation Reliant Energy Construction, LLC, a Delaware limited liability company Reliant Energy Coolwater, Inc., a Delaware corporation Reliant Energy Customer Care Services, LLC, a Delaware limited liability company Reliant Energy Corporate Services, LLC, a Delaware limited liability company Reliant Energy Deer Park, Inc., a Delaware corporation I-1 Reliant Energy Desert Basin, LLC, a Delaware limited liability company Reliant Energy Development Services, Inc., a Delaware corporation Reliant Energy Electric Solutions, LLC, a Delaware limited liability company Reliant Energy Ellwood, Inc., a Delaware corporation Reliant Energy Equipment Company, LLC, a Nevada Limited liability company Reliant Energy Erie West, LLC, a Delaware limited liability company Reliant Energy Etiwanda, Inc., a Delaware corporation Reliant Energy Europe Trading & Marketing, Inc., a Delaware corporation Reliant Energy Florida Holdings, LLC, a Delaware limited liability company Reliant Energy Funding, LLC, a Delaware limited liability company Reliant Energy Gas Storage, LLC, a Delaware limited liability company Reliant Energy Gilbert, LLC, a Delaware limited liability company Reliant Energy Hunxxxxxxxn, LLC, a Delaware limited liability company Reliant Energy Indian River, LLC, a Delaware limited liability company Reliant Energy Key/Con Fuels, LLC, a Delaware limited liability company Reliant Energy Mandalay, Inc., a Delaware corporation Reliant Energy Mid-Atlantic Development, Inc., a Delaware corporation Reliant Energy Net Ventures, Inc., a Delaware corporation Reliant Energy New Smyrna Beach, LLC, a Delaware limited liability company Reliant Energy Northeast Generation, Inc., a Delaware corporation Reliant Energy Northeast Holdings, Inc., a Delaware corporation Reliant Energy Ormond Beach, Inc., a Delaware corporation Reliant Energy Osceola, LLC, a Delaware limited liability company Reliant Energy Partsco, LLC, a Delaware limited liability company Reliant Energy Portland, LLC, a Delaware limited liability company Reliant Energy Power Generation, Inc., a Delaware corporation Reliant Energy Power Operations I, Inc., a Delaware corporation Reliant Energy Power Operations II, Inc., a Delaware corporation Reliant Energy Renewables Atascocita GP, LLC, a Delaware limited liability company Reliant Energy Renewables Atascocita, LP, a Delaware limited partnership Reliant Energy Renewables Baytown GP, LLC, a Delaware limited liability company Reliant Energy Renewables Baytown, LP, a Delaware limited partnership Reliant Energy Renewables Blue Bonnet GP, LLC, a Delaware limited liability company Reliant Energy Renewables Blue Bonnet, LP, a Delaware limited partnership Reliant Energy Renewables Coastal Plains GP, LLC, a Delaware limited liability company Reliant Energy Renewables Coastal Plains, LP, a Delaware limited partnership Reliant Energy Renewables Conroe GP, LLC, a Delaware limited liability company Reliant Energy Renewables Conroe, LP, a Delaware limited partnership Reliant Energy Renewables Fort Worth GP, LLC, a Delaware limited liability company Reliant Energy Renewables Fort Worth, LP, a Delaware limited partnership Reliant Energy Renewables Holdings II, LLC, a Delaware limited liability company Reliant Energy Renewables Security GP, LLC, a Delaware limited liability company Reliant Energy Renewables Security, LP, a Delaware limited partnership Reliant Energy Renewables, Inc., a Delaware corporation Reliant Energy Retail Holdings, LLC, a Delaware limited liability company Reliant Energy Retail Services, LLC, a Delaware limited liability company Reliant Energy Sabine (Delaware), Inc., a Delaware corporation Reliant Energy Sabine (Texas), Inc., a Delaware corporation Reliant Energy Services Desert Basin, LLC, a Delaware limited liability company Reliant Energy Services International, Inc., a Delaware corporation Reliant Energy Services Mid-Stream, LLC, a Delaware limited liability company Reliant Energy Services New Mexico, LLC, a Delaware limited liability company Reliant Energy Services, Inc., a Delaware corporation Reliant Energy Seward, LLC, a Delaware limited liability company Reliant Energy Shelxx Xxxnty II, LP, a Delaware limited partnership Reliant Energy Shelby County, LP, a Delaware limited partnership Reliant Energy Shelby Development Corp., a Delaware corporation Reliant Energy Shelby Holding Corp., a Delaware corporation Reliant Energy Shelby I, LP, a Delaware limited partnership Reliant Energy Shelby II, LP, a Delaware limited partnership Reliant Energy Signal Pxxx, XXX, a Delaware limited liability company Reliant Energy Solutions, LLC, a Delaware limited liability company Reliant Energy Solutions California, Inc., a Delaware corporation Reliant Energy Solutions East, LLC, a Delaware limited liability company Reliant Energy Solutions Holdings, LLC, a Delaware limited liability company Reliant Energy Solutions West, LLC, a Delaware limited liability company Reliant Energy Titus, LLC, a Delaware limited liability company Reliant Energy Tradixx Xxchange, Inc., a Delaware corporation Reliant Energy Ventures, Inc., a Delaware corporation Reliant Energy Wholesale Service Company, a Delaware corporation Reliant Energy Winter Haven, LLC, a Delaware limited liability company Reliant Resources International Services, Inc., a Delaware corporation ReliantEnergy.com, Inc., a Delaware corporation Seward Trust, a Delawxxx xxxxxxxx xxxxt StarEn Power, LLC, a Delaware xxxxxed liability company Texas Star Energy Company, a Delaware corporation EXHIBIT A ([Face of Note) ] -------------------------------------------------------------------------------- CUSIP CUSIP/CINS ____________ 9.25% Senior Secured Notes due 2010 No. ___ $____________ RELIANT RESOURCES, INC. promises to pay to [CEDE & CO.] or registered assigns, the principal sum of ----------------------------------------------------------- Dollars on _____________, 20___. Interest Payment Dates: ____________ and ____________ Record Dates: ____________ and ____________ --------------------------------------------------------------------------------

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 106 SIGNATURES Dated as of July 29October 30, 2005 L-3 COMMUNICATIONS CORPORATION 2002 ISSUERS: WYNN LAS VEGAS, LLC, a Nevada limited liability company, By: Wynn Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ XXXXXX XXXXXX Name: Xxxxxx Xxxxxx Title: President WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation, By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ XXXXXX XXXXXX Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxxx Xxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor 107 GUARANTORS: DESERT INN WATER COMPANY, LLC, a Nevada limited liability company, By: L-3 COMMUNICATIONS AIS GP CORPORATIONXxxxxxx Xxxxxx, as General Partner LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ XXXXXX XXXXXX Name: Xxxxxx Xxxxxx Title: President XXXX DESIGN & DEVELOPMENT, LLC, a Nevada limited liability company, By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ XXXXXX XXXXXX Name: Xxxxxx Xxxxxx Title: President XXXX RESORTS HOLDINGS, LLC, a Nevada limited liability company, By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ XXXXXX XXXXXX Name: Xxxxxx Xxxxxx Title: President LAS VEGAS JET, LLC, a Nevada limited liability company, By: Wynn Las Vegas, LLC, a Nevada limited liability company, By: Wynn Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ XXXXXX XXXXXX Name: Xxxxxx Xxxxxx Title: President 108 WORLD TRAVEL, LLC, a Nevada limited liability company, By: Xxxx Las Vegas, LLC, a Nevada limited liability company, By: Wynn Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ XXXXXX XXXXXX Name: Xxxxxx Xxxxxx Title: President PALO, LLC, a Delaware limited liability company, By: Wynn Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ XXXXXX XXXXXX Name: Xxxxxx Xxxxxx Title: President XXXXXXX XXXXXX, LLC, a Nevada limited liability company, By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ XXXXXX XXXXXX Name: Xxxxxx Xxxxxx Title: President 000 XXXX XXXXXXX, LIMITED, a Nevada corporation By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- XXXXXX XXXXXX Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxxx Xxxxxx Title: President Attest: Name: Title: XXXXX FARGO BANK, NATIONAL ASSOCIATION By: /s/ XXXXXXX XXXXX Name: Xxxxxxx Xxxxx Title: Attest: /s/ ILLEGIBLE Authorized Person THE BANK OF NEW YORKSignatory Date: October 30, 2002 110 [Face of Note] CUSIP/CINS 983130 AA3 12.0% Second Mortgage Notes due 2010 No. $ XXXX LAS VEGAS, LLC XXXX LAS VEGAS CAPITAL CORP. promises to pay to CEDE & CO. or registered assigns, the principal sum of Dollars on November 1, 2010. Interest Payment Dates: May 1 and November 1 Record Dates: April 15 and October 15 Dated: October 30, 2002 WYNN LAS VEGAS, LLC, a Nevada limited liability company, By: Wynn Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member Name: Title: By: Name: Title: WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation, By: Name: Title: By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: XXXXX FARGO BANK, NATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note] 12.0% Second Mortgage Notes due 2010 THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) -------------------------------------------------------------------------------- CUSIP _____OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (1) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.06 OF THE INDENTURE, (2) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (3) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (4) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF XXXX LAS VEGAS, LLC AND XXXX LAS VEGAS CAPITAL CORP. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 XXXXX XXXXXX, XXX XXXX, XXX XXXX) ("XXX"), TO THE ISSUERS OR THEIR AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.(1)

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES 121 Dated as of July 29April 17, 2005 L-3 COMMUNICATIONS 2003 TESORO PETROLEUM CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ GREGORY A. WRIGHT --------------------------------- Name: Xxxxxxx X. Xxxxxxxxx Gregory A. Wright Title: GUARANTORSXxxxxx Xxxx Xxxxxdent and Chief Financial Officer FAR EAST MARITIME COMPANY GOLD STAR MARITIME COMPANY TESORO FINANCIAL SERVICES HOLDING COMPANY VICTORY FINANCE COMPANY By: APCOM/s/ G. SCOTT SPENDLOVE --------------------------------- Name: G. Scott Spendlove Title: Atxxxxxx xx Xxxx DIGICOMP INC. KENAI PIPE LINE COMPANY SMILEY'S SUPER SERVICE, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSTESORO ALASKA COMPANY TESORO ALASKA PIPELINE COMPANY TESORO AVIATION COMPANY TESORO GAS RESOURCES COMPANY, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL TESORO HAWAII CORPORATION TESORO HIGH PLAINS PIPELINE COMPANY TESORO MARINE SERVICES HOLDING COMPANY TESORO MARINE SERVICES, LLC By: Tesoro Marine Services Holding Company, as sole member TESORO MARITIME COMPANY TESORO NORTHSTORE COMPANY TESORO PETROLEUM COMPANIES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSTESORO REFINING AND MARKETING COMPANY TESORO TECHNOLOGY COMPANY TESORO TRADING COMPANY TESORO VOSTOK COMPANY TESORO WASATCH, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC.By: Tesoro Petroleum Corporation, as Guarantors sole member By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- SHARON L. LAYMAN ----------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Sharon L. Layman Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person Vxxx Xxxxxxxxx xxd Treasurer THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- VAN K. BROWN ----------------------------------- Name: Xxxxx X. Xxxxxx Van K. Brown Title: Assistant Vice President Presxxxxx EXHIBITS Exhibit A FORM OF NOTE Exhibit B FORM OF CERTIFICATE OF TRANSFER Exhibit C FORM OF CERTIFICATE OF EXCHANGE Exhibit D FORM OF CERTIFICATE FROM ACQUIRING INSTITUTIONAL ACCREDITED INVESTOR Exhibit E FORM OF SUPPLEMENTAL INDENTURE - ADDITIONAL SUBSIDIARY GUARANTEES Exhibit F REGISTRATION RIGHTS AGREEMENT Exhibit G FORM OF MORTGAGE EXHIBIT A (Face of NoteFACE OF NOTE) -------------------------------------------------------------------------------- CUSIP THE SECURITIES COVERED HEREBY WERE ISSUED WITH ORIGINAL ISSUE DISCOUNT UNDER SECTIONS 1272, 1273 AND 1275 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED. YOU MAY CONTACT GREG WRIGHT, THE CHIEF FINANCIAL OFFICER OF THE COMPANY, AT TESORO PEXXXXXXX XXXPORATION, 300 CONCORD PLAZA DRIVE, SAN ANTONIO, TEXAS 78216-6999, 210-828-8484, XXX XXXX XXXXXXX XXX XXXX XXX XXXXXXXX XXXXXXXXXXX XXGAXXXXX XXX XXSUE PRICE, THE AMOUNT OF SUCH ORIGINAL ISSUE DISCOUNT, THE ISSUE DATE AND THE YIELD TO MATURITY. CUSIP/CINS __________ 8% Senior Secured Notes due 2008 No. [__] $__________ TESORO PETROLEUM CORPORATION promises to pay to ______________________________ or registered assigns, the principal sum of _____________________________ Dollars on April 15, 2008. Interest Payment Dates: April 15 and October15. Record Dates: April 1 and October 1.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29December 31, 2005 L-3 COMMUNICATIONS 2003 METALDYNE CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx Timothy D. Leuliette ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Timothy D. Leuliette Title: GUARANTORSXxxxxxxx, Xxxxxxxxt & CEO EACH OF THE GUARANTORS LISTED ON SCHEDULE I HERETO: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Timothy D. Leuliette ------------------------------------ Name: Xxxxxxxxxxx X. Xxxxxxx Timothy D. Leuliette Title: Vice President Xxxxxxxx, Xxxxxxxxt & CEO Schedule I SCHEDULE OF GUARANTORS The following schedule lists each Guarantor under the Indenture as of the date of the Indenture: ER Acquisition Corp. GMTI Holding Company Halyard Aviation Services, Inc. MASG Disposition, Inc. MASX Energy Services Group, Inc. Metaldyne Accura Tool & Mold, Inc. Metaldyne Company LLC Metaldyne DuPage Die Casting Corporation Metaldyne Europe, Inc. Metaldyne European Holdings Inc. Metaldyne Lester Precision Die Casting, Inc. Metaldyne Lixxx Xxtals Company, Inc. Metaldyne Machining and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor Assembly Company, Inc. Metaldyne Precision Forming-Fort Wayne, Inc. Metaldyne Services, Inc. Metaldyne Sintered Components of Indiana, Inc. Metaldyne Sintered Components, LLC Metaldyne Tubular Products, Inc. Metaldyne U.S. Holding Co. Precision Headed Products, Inc. Punchcraft Company Stahl International, Inc. X.C. McCurdy & Co. Windfall Products, Inx. Windfall Specialty Powders, Inc. EXHIBIT A A-1 [Face of Note] -------------------------------------------------------------------------------- CUSIP/CINS ____________ 10% [Series A] [Series B] Senior Subordinated Notes due 2014 No. _____ $__________ METALDYNE CORPORATION promises to pay to ___________________________________________________________ or registered assigns, the principal sum of ___________________________________________________________ Dollars on January 15, 2014 Interest Payment Dates: January 15 and July 15 Record Dates: January 1 and July 1 Dated: December 31, 2003 METALDYNE CORPORATION By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK[This is one of the Notes referred to in the within-mentioned Indenture: [ ], as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____________________________ Authorized Signatory] -------------------------------------------------------------------------------- [Back of Note] 10% [Series A] [Series B] Senior Subordinated Notes due 2014 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29May 10, 2005 L-3 COMMUNICATIONS CORPORATION 2004 Emmis Operating Company By: /s/ J. Sxxxx Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. J. Sxxxx Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS Associate General Counsel Emmis Communications Corporation Emmis Radio Corporation Emmis Television Broadcasting, L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATIONEmmis Publishing, as General Partner L.P. Emmis Indiana Broadcasting, L.P. SJL of Kansas Corp. Topeka Television Corporation Emmis International Broadcasting Corporation Emmis Meadowlands Corporation Emmis Publishing Corporation Emmis License Corporation Emmis Television License Corporation Emmis Radio License Corporation Emmis License Corporation of New York Emmis Radio License Corporation of New York Emmis Television License Corporation of Wichita Emmis Television License Corporation of Topeka Mediatex Communications Corporation Los Angeles Magazine Holding Company, Inc. By: /s/ Xxxxxxxxxxx X. J. Sxxxx Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. J. Sxxxx Xxxxxxx Title: Authorized Person Vice President and Associate General Counsel The Bank of Nova Scotia Trust Company of New York By: /s/ Jxxx Xxxxxx Name: Jxxx X. Xxxxxx Title: Trust Officer EXHIBIT A [Face of Note] CUSIP/CINS ____________ 6 7/8% Senior Subordinated Notes due 2012 No. $ EMMIS OPERATING COMPANY promises to pay to__________or registered assigns, the principal sum of______________________________________________________________________________________ DOLLARS on May 15, 2012. Interest Payment Dates: May 15 and November 15 Record Dates: May 1 and November 1 Dated: EMMIS OPERATING COMPANY By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: THE BANK OF NOVA SCOTIA TRUST COMPANY OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note) -------------------------------------------------------------------------------- CUSIP _____] 6 7/8% Senior Subordinated Notes due 2012 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 104 112 SIGNATURES Dated as of July May 29, 2005 L-3 COMMUNICATIONS CORPORATION 1998 CEX HOLDINGS, INC. Attest: By: /s/ Xxxxxxx Gary X. Xxxxxxxxx ------------------------------------ Xxxxxx ------------------------------- Name: Xxxxxxx Gary X. Xxxxxxxxx Xxxxxx Title: GUARANTORSExecutive Vice President /s/ Kyle X. Xxxx --------------------- Name: APCOMKyle X. Xxxx Xxxle: Assistant Secretary CORPORATE EXPRESS, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSAttest: By: /s/ Gary X. Xxxxxx ------------------------------- Name: Gary X. Xxxxxx Title: Executive Vice President /s/ Kyle X. Xxxx --------------------- Name: Kyle X. Xxxx Xxxle: Assistant Secretary ASAP SOFTWARE EXPRESS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL CORPORATE EXPRESS CALLCENTER SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSSOFCO-MEAD, XXC. SQP, INC. L-3 COMMUNICATIONS AEROMETSOFCO OF OHIO, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYS&O PROPERTY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS EPCO PACKAGING SERVICES, INC. HERMANN MARKETING, INC. DISTRIBUTION RESOURCES CO. CORPORATE EXPRESS REAL ESTATE, INC. CORPORATE EXPRESS OF THE EAST, INC. CORPORATE EXPRESS OF TEXAS, INC. FEDERAL SALES SERVICE, INC. VIRGINIA IMPRESSIONS PRODUCTS CO., INC MICROMAGNETIC SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATE EXPRESS DELIVERY SYSTEMS, INC. AMERICAN DELIVERY SYSTEM, INC. CORPORATE EXPRESS DISTRIBUTION SERVICES, INC. NEW DELAWARE DELIVERY, INC. 105 113 RED ARROW CORPORATION L-3 COMMUNICATIONS CE RAC, INC. RED ARROW SPOTTING SERVICES, INC. RED ARROW TRUCKING CO. RED ARROW WAREHOUSING, CO. RUSH TRUCKING, INC. CORPORATE EXPRESS DELIVERY SYSTEMS - INTERMOUNTAIN, INC. CORPORATE EXPRESS DELIVERY LEASING - INTERMOUNTAIN, INC. CORPORATE EXPRESS DELIVERY SYSTEMS - MID-ATLANTIC, INC. CORPORATE EXPRESS DELIVERY LEASING - MID-ATLANTIC, INC. CORPORATE EXPRESS DELIVERY SYSTEMS - MID-WEST, INC. CORPORATE EXPRESS DELIVERY LEASING - MID-WEST, INC. CORPORATE EXPRESS DELIVERY SYSTEMS - NEW ENGLAND, INC. CORPORATE EXPRESS DELIVERY LEASING - NEW ENGLAND, INC. CORPORATE EXPRESS DELIVERY SYSTEMS - NORTHEAST, INC. CORPORATE EXPRESS DELIVERY LEASING - NORTHEAST, INC. CORPORATE EXPRESS DELIVERY SYSTEMS - SOUTHEAST, INC. CORPORATE EXPRESS DELIVERY LEASING - SOUTHEAST, INC. AIR COURIER DISPATCH OF NEW JERSEY, INC. SUNBELT COURIER, INC. TRICOR AMERICA, INC. MIDNITE EXPRESS INTERNATIONAL COURIER, INC. CORPORATE EXPRESS DELIVERY SYSTEMS - SOUTHWEST, INC. CORPORATE EXPRESS DELIVERY LEASING - SOUTHWEST, INC. 106 114 CORPORATE EXPRESS DELIVERY SYSTEMS - WEST COAST, INC. CORPORATE EXPRESS DELIVERY LEASING - WEST COAST, INC. CORPORATE EXPRESS DELIVERY SYSTEMS - EXPEDITED, INC. CORPORATE EXPRESS DELIVERY LEASING - EXPEDITED, INC. CORPORATE EXPRESS DELIVERY ADMINISTRATION, INC. CORPORATE EXPRESS DELIVERY MANAGEMENT BUSINESS TRUST By: /s/ Gary X. Xxxxxx ------------------------------------ Name: Gary X. Xxxxxx Title: Vice President 107 115 XXX XXXX XX XXX XXXX, xx Trustee By: /s/ Waltxx X. Xxxxxx ---------------------------- Name: Waltxx X. Xxxxxx Title: Vice President (SEAL) 108 116 EXHIBIT A (144A) (Face of Note) Reg. S) CUSIP No.: (ISIN) No. $350,000,000 CEX HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIpromises to pay to or registered assigns, the principal sum of Dollars on June 1, 2008 Interest Payment Dates: June 1 and December 1 Record Dates: May 15 and November 15 Dated: May 29, 1998 CEX HOLDINGS, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- ---------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- ---------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK(SEAL) This is one of the Global Notes referred to in the within-mentioned Indenture: The Bank of New York, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____---------------------------- Authorized Signatory

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 92 SIGNATURES Dated as of July 29BUILDERS FIRSTSOURCE, 2005 L-3 COMMUNICATIONS CORPORATION INC. a Delaware Corporation By: /s/ Xxxxxxx Xxxxxx X. Xxxxxxxxx ------------------------------------ XxXxxxxxx Name: Xxxxxxx Xxxxxx X. Xxxxxxxxx XxXxxxxxx Title: GUARANTORS: APCOMSenior Vice President (Signature page to Indenture) GUARANTORS BUILDERS FIRSTSOURCE — NORTHEAST GROUP, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSLLC, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICESa Delaware limited liability company, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSas Guarantor BUILDERS FIRSTSOURCE — TEXAS GENPAR, INC. L-3 COMMUNICATIONS AEROMETLLC, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYa Delaware limited liability company, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSas Guarantor BUILDERS FIRSTSOURCE — MBS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE LLC, a Delaware limited liability company, as Guarantor BUILDERS FIRSTSOURCE — TEXAS GROUP, L.P., a Texas limited partnership, as Guarantor BFS TEXAS, LLC, a Delaware limited liability company, as Guarantor BUILDERS FIRSTSOURCE — SOUTH TEXAS, L.P., a Texas limited partnership, as Guarantor BUILDERS FIRSTSOURCE — TEXAS INSTALLED SALES, L.P., a Texas limited partnership, as Guarantor BFS IP, LLC, a Delaware limited liability company, as Guarantor BUILDERS FIRSTSOURCE — INTELLECTUAL PROPERTY, L.P., a Texas limited partnership, as Guarantor BUILDERS FIRSTSOURCE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., a Delaware corporation, as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. Guarantor BUILDERS FIRSTSOURCE — DALLAS, LLC, a Delaware limited liability company, as Guarantor BUILDERS FIRSTSOURCE — FLORIDA, LLC, a Delaware limited liability company, as Guarantor BUILDERS FIRSTSOURCE — FLORIDA DESIGN CENTER, LLC, a Delaware limited liability company, as Guarantor BUILDERS FIRSTSOURCE — OHIO VALLEY, LLC, a Delaware limited liability company, as Guarantor BFS, LLC, a Delaware limited liability company, as Guarantor BUILDERS FIRSTSOURCE — ATLANTIC GROUP, LLC, a Delaware limited liability company, as Guarantor BUILDERS FIRSTSOURCE — SOUTHEAST GROUP, LLC, a Delaware limited liability company, as Guarantor CCWP, INC, a South Carolina close corporation, as Guarantor BUILDERS FIRSTSOURCE — RALEIGH, LLC, a Delaware limited liability company, as Guarantor BUILDERS FIRSTSOURCE — COLORADO GROUP, LLC, a Delaware limited liability company, as Guarantor BUILDERS FIRSTSOURCE — COLORADO, LLC, a Delaware limited liability company, as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner /s/ Xxxxxx X. XxXxxxxxx Name: Xxxxxx X. XxXxxxxxx Title: Senior Vice President (Signature page to Indenture) WILMINGTON TRUST COMPANY By: /s/ Xxxxxxxxxxx Xxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxx Name: Xxxxxxxxxxx Xxxxxxxx X. Xxxxxxx Xxxxx Title: Authorized Person THE BANK OF NEW YORKSenior Finanical Services Officer (Signature page to Indenture) [Face of Note] CUSIP/CINS Second Priority Senior Secured Floating Rate Notes due 2016 No. $ BUILDERS FIRSTSOURCE, INC. promises to pay to [ ] or registered assigns, the principal sum of DOLLARS on February 15, 2016. Interest Payment Dates: February 15, May 15, August 15 and November 15 Record Dates: February 1, May 1, August 1 and November 1 Dated: BUILDERS FIRSTSOURCE, INC. By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: WILMINGTON TRUST COMPANY, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note] Second Priority Senior Secured Floating Rate Notes due 2016 THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) -------------------------------------------------------------------------------- CUSIP _____OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (1) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.06 OF THE INDENTURE, (2) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (3) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (4) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE COMPANY. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (00 XXXXX XXXXXX, XXX XXXX, XXX XXXX) (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY OTHER SECURITIES LAWS. THIS SECURITY MAY NOT BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION. THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF, AGREES TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE THAT IS SIX MONTHS AFTER THE ORIGINAL ISSUE DATE HEREOF OR SUCH OTHER PERIOD AS PROMULGATED BY THE SECURITIES AND EXCHANGE COMMISSION ONLY (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) TO A “QUALIFIED INSTITUTIONAL BUYER” WITHIN THE MEANING OF RULE 144A OF THE SECURITIES ACT, (C) TO AN “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501(A) OF THE SECURITIES ACT SUBJECT TO THE RIGHT OF THE COMPANY PRIOR TO ANY OFFER, SALE OR TRANSFER ,TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATIONS AND/OR OTHER INFORMATION SATISFACTORY TO IT, (D) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (E) OUTSIDE THE UNITED STATES PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS IN AN OFFSHORE TRANSACTION PURSUANT TO REGULATION S UNDER THE SECURITIES ACT IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 904 UNDER THE SECURITIES ACT OR (F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 91 SIGNATURES Dated as of July 29October 11, 2005 L-3 COMMUNICATIONS CORPORATION DYCOM INVESTMENTS, INC. By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ ______________________________________ Name: Xxxxxxx X. Xxxxxxxxx Xxxx Title: GUARANTORS: APCOMTreasurer ANSCO & ASSOCIATES, LLC APEX DIGITAL, LLC C-2 UTILITY CONTRACTORS, LLC CABLECOM, LLC CAN-AM COMMUNICATIONS, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSCOMMUNICATIONS CONSTRUCTION GROUP, LLC DYCOM CAPITAL MANAGEMENT, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICESDYCOM IDENTITY, LLC XXXXX CABLE CONSTRUCTION, LLC GLOBE COMMUNICATIONS, LLC INSTALLATION TECHNICIANS, LLC XXX X. XXXXX COMPANY, LLC LAMBERTS CABLE SPLICING COMPANY, LLC LOCATING, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSXXXXXXX CONSTRUCTION, LLC XXXXX XXXXX SONS COMPANY, LLC POINT TO POINT COMMUNICATIONS, INC. L-3 PRECISION VALLEY COMMUNICATIONS AEROMETOF VERMONT, LLC RJE TELECOM, LLC XXXXXXX COMMUNICATIONS LIMITED PARTNERSHIP STAR CONSTRUCTION, LLC XXXXXXX COMMUNICATIONS, LLC S.T.S., LLC TCS COMMUNICATIONS, LLC TESINC, LLC UNDERGROUND SPECIALTIES, LLC US COMMUNICATIONS CONTRACTORS, LLC UTILIQUEST, LLC WHITE MOUNTAIN CABLE CONSTRUCTION, LLC By: ______________________________________ Name: Xxxxxxx X. Xxxx Title: Treasurer DYCOM INDUSTRIES, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYBy: ______________________________________ Name: Xxxxxxx X. Xxxx Title: Senior Vice President and Chief Financial Officer WACHOVIA BANK, NATIONAL ASSOCIATION By: ______________________________________ Name: Title: [Face of Note] CUSIP/CINS ___________ 8-1/8% Senior Subordinated Notes due 2015 No. ___ $____________ DYCOM INVESTMENTS, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSpromises to pay to [_________] or registered assigns, the principal sum of ________________________________________________ DOLLARS on _____________, 20___. Interest Payment Dates: April 15 and October 15 Record Dates: March 31 and September 30 Dated: _______________, 2005 DYCOM INVESTMENTS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- ______________________________________ Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor ByThis is one of the Notes referred to in the within-mentioned Indenture: L-3 COMMUNICATIONS AIS GP CORPORATIONWACHOVIA BANK, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP ______________________________ Authorized Signatory [Back of Note] 8-1/8% Senior Subordinated Notes due 2015 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29the date first written above. ISSUERS: TARGA RESOURCES PARTNERS LP By: Targa Resources GP LLC, 2005 L-3 COMMUNICATIONS Its general partner By: /s/ Xxxxxxx X. Xxxxx Name: Xxxxxxx X. Xxxxx Title: Senior Vice President, Chief Financial Officer and Treasurer TARGA RESOURCES PARTNERS FINANCE CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxxx Title: Senior Vice President, Chief Financial Officer and Treasurer [Indenture] GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE TARGA BADLANDS LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT TARGA CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY TARGA COGEN LLC TARGA DOWNSTREAM LLC TARGA GAS MARKETING LLC TARGA GAS PIPELINE LLC TARGA GAS PROCESSING LLC TARGA INTRASTATE PIPELINE LLC TARGA LIQUIDS MARKETING AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION TRADE LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS TARGA LOUISIANA INTRASTATE LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM TARGA MIDSTREAM SERVICES LLC WOLF COACH, INC., as Guarantors TARGA MLP CAPITAL LLC TARGA NGL PIPELINE COMPANY LLC TARGA RESOURCES OPERATING GP LLC TARGA RESOURCES OPERATING LLC TARGA SOUND TERMINAL LLC TARGA TERMINALS LLC TARGA TRANSPORT LLC By: /s/ Xxxxxxxxxxx Xxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxx Name: Xxxxxxxxxxx Xxxxxxx X. Xxxxxxx Xxxxx Title: Senior Vice President President, Chief Financial Officer and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor ByTreasurer [Indenture] TRUSTEE: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Xxxxxx Name: Xxxxx X. Xxxxxx Xxxxxx Title: Assistant Vice President EXHIBIT A ([Face of Note) -------------------------------------------------------------------------------- ] CUSIP _____87612B AS11 5% Senior Notes due 2018 No. $ TARGA RESOURCES PARTNERS LP and TARGA RESOURCES PARTNERS FINANCE CORPORATION promise to pay to , or registered assigns, the principal sum of DOLLARS [or such other amount as may be indicated on the attached Schedule of Exchanges of Interests in the Global Note],2 on January 15, 2018. Interest Payment Dates: January 15 and July 15 Record Dates: January 1 and July 1 Dated: , 20 TARGA RESOURCES PARTNERS LP By: Targa Resources GP LLC, Its General Partner By: Name: Title: TARGA RESOURCES PARTNERS FINANCE CORPORATION By: Name: Title:

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29August 10, 2005 L-3 COMMUNICATIONS CORPORATION 2001 AUTONATION, INC. By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Marc Bourhis -------------------------------- Name: Xxxxxxx X. Xxxxxxxxx Marc Bourhis Title: GUARANTORS: APCOMXxxx Xxxxident and Treasurer WELLS FARGO BANK MINNESOTA, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Robert L. Reynolds -------------------------------- Name: Xxxxx Robert L. Reynolds Xxxxx: Xxxx Xxxxxdent 7 ROD REAL ESTATE NORTH, A LIMITED LIABILITY COMPANY 7 ROD REAL ESTATE SOUTH, A LIMITED LIABILITY COMPANY ABRAHAM CHEVROLET-MIAMI, INC. ABRAHAM CHEVROLET-TAMPA, INC. ACER FIDUCIARY, INC. AIRPORT DODGE, INC. ALBERT BERRY MOTORS, INC. XX XXXXXXE FORD, LLC ALX-XXXXX XXNT A CAR, INC. ALLIED 2000 COLLISION CENTER, INC. ALLISON BAVARIAN AMERICX'X XXX STOP AMERICAN WAY MOTORS, INC. AN/CF ACQUISITION CORP. AN/FGJE ACQUISITION CORP. AN/FMK ACQUISITION CORP. AN/MF ACQUISITION CORP. AN/MNI ACQUISITION CORP. AN/PF ACQUISITION CORP. AN/STD ACQUISITION CORP. ANDERSON CHEVROLET ANDEXXXX XXXVROLET - LOS GATOS, INC. ANDERSON CUPERTINO, INC. XXXXXXON DEALERSHIP GROUP XXXXXING ON WHEELS, LTD. APPLEWAY CHEVROLET, INC. ATRIUM RESTAURANTS, INC. AUTO AD AGENCY, INC. AUTO ADVERTISING SERVICES, INC. AUTO CAR, INC. AUTO HOLDING CORP. AUTO MISSION LTD. AUTO WEST, INC. AUTONATION BENEFITS COMPANY, INC. AUTONATION CHRYSLER PLYMOUTH GP, INC. AUTONATION CHRYSLER PLYMOUTH JEEP OF NORTH HOUSTON, L.P. AUTONATION CHRYSLER PLYMOUTH LP, INC. AUTONATION CORPORATE MANAGEMENT COMPANY AUTONATION DENVER MANAGEMENT, INC. AUTONATION DODGE OF PEMBROKE PINES, INC. AUTONATION DODGE OF SAN ANTONIO-GP, INC. AUTONATION DODGE OF SAN ANTONIO, L.P. AUTONATION DODGE OF SAN ANTONIO-LP, INC. AUTONATION DS INVESTMENTS, INC. AUTONATION ENTERPRISES INCORPORATED AUTONATION FINANCIAL SERVICES CORP. AUTONATION HOLDING CORP. AUTONATION IMPORTS NORTHWEST, INC. AUTONATION IMPORTS OF LITHIA SPRINGS, INC. AUTONATION IMPORTS OF LONGWOOD, INC. AUTONATION IMPORTS OF PALM BEACH, INC. AUTONATION IMPORTS OF WINTER PARK, INC. AUTONATION INSURANCE COMPANY AUTONATION LM HOLDING CORPORATION AUTONATION MOTORS OF LITHIA SPRINGS, INC. AUTONATION PARK ASSOCIATION, INC. AUTONATION REALTY CORPORATION AUTONATION USA CORPORATION AUTONATION USA OF PERRINE, INC. AUTONATIOX XXX XF VIRGINIA BEACH, LLC AUTONATIONDIRECT.COM, INC. X-X-X XXXXXXXXXX, INC. BANKSTON AUTO, INC. BANXXXXX XX GP, INC. BAXXXXXX XX XP, INC. BAXXXXXX XXXXSLER JEEP OF FRISCO, L.P. BANKSTON FORD OF FXXXXX, XXX. XX. BANKSTON NISSAN IN IRVING, INC. BANKSTON NISSAN LEWISVILLE, INC. BARGAIN RENT-A-CAR BATFISH AUTO, LLC BATFISH, LLC BBCSS, INC. BEACH CITY CHEVROLET COMPANY, INC. BEACON MOTORS, INC. BELL DODGE, L.L.C BENGAX XXTOR COMPANY, LTD BENGAL MOTORS, INC. BILL AYARES CHEVROLET, INC. XXXX XALLACE ENTERPRISES, INC. XXXXSOE DODGE, LLC BOB XXXXXXXD FORD, INC. XXXX XXXX XOLDING CORP. BOSC AUTOMOTIVE REALTY, INC. BROWN & BROWN CHEVROLET, INC. BXXXX & BROWN CHEVROLET - SUPERSTITION SPRINGS, LLC BROWN & BROWN NISSAN, INC. XROWX & XROWN NISSAN MESA, L.L.C. XXICK MART, INC. BUICK MART LIMITED PARTNERSHIP BULL MOTORS, LLC C-CAR AUTO WHOLESALERS, INC. C. GARRETT, INC. CARLISXX XXXXXX, LLC CARWELL, LLC CENTRAL MOXXX XXXPANY, LTD CENTRAL MOTORS, INC. CERRITOS BODY WORKS, INC. CERRITOS IMPORTS, INC. CHAMPION CHEVROLET, LLC CHAMPION FORD, INC. CHAMPION PLANNING, INC. CHARLIE HILLARD, INC. CXXXXXX XXXXXX XUTO SALES, INC. XXXXXIE THOMAS CHEVROLET, INC. XXXXXXE THOMAS CHRYSLER-PLYMOUTH, INC. CHARLIE THOMAS COURTESY LEASING, INC. CHARLIE THOMAS FORD, INC. XXXXXXX XXXMAS' COURTESY FORD, INC. XHESROWN AUTO, LLC CHESROWN CHEVROLET, LLC CHESROWN COLLISION CENTER, INC. CHESROWN FORD, INC. CHEVROLET WORLD, INC. CHUCK CLANCY FORD OF MARIETTA, INC. CLEBURNE MOTOR COMPANY, INC. COASTAL CADILLAC, INC. COLONIAL IMPORTS, INC. CONSUMER CAR CARE CORPORATION CONTEMPORARY CARS, INC. COOK-WHITEHEAD FORD, INC. XXXX-XXXXXXEAD FORD, LLC XXXXXXXXX XXOPERTIES HOLDING, INC. COSTA MESA CARS, INC. COURTESY AUTO GROUP, INC. COURTESY WHOLESALE CORPORATION COVINGTON PIKE MOTORS, INC. XXXXIX XXNAGEMENT ACCEPTANCE CORPORATION CROSS-CONTINENT AUTO RETAILERS, INC. CT INTERCONTINENTAL, INC. CT MOTORS, INC. D/L MOTOR COMPANY D/L MOTOR-HO, INC. DEAL DODGE OF DES PLAINES, INC. DEALERSHIP ACCOUNTING SERVICES, INC. DEALERSHIP PROPERTIES, INC. DEALERSHIP REALTY CORPORATION DESERT BUICK-GMC MANAGEMENT GROUP, INC. DESERT BUICK-GMC TRUCKS, L.L.C DESERT CHRYSLER-PLYMOUTH, INC. DESERT DODGE, INC. DESERT GMC-EAST, INC. DESERT GMC, L.L.C DESERT LINCOLN-MERCURY, INC. DOBBS BROTHERS BUICK-PONTIAC, INC. DOBBS FORD, INC. DOBBS XXXX OF MEMPHIS, INC. DOBBS MOBILE BAY, INC. XXXXX MOTORS OF ARIZONA, INC. DODGE OF BELLEVUE, INC. DON-A-VEE JEEP EAGLE, INC. DON MEALEY CHEVROLET, INC. XXX XXALEY IMPORTS, INC. XXX XXXXEY OLDSMOBILE, INC. XXXXXRS GROVE DODGE, INC. DRIVER'S MART WORLDWIDE, INC. EASTGATE FORD, INC. ED MULLINAX FORD, INC. XX XXXXXXXX, INC. EDGREX XXXXX XXXPANY, INC. XX MONTE IMPORTS, INC. EL MONTE MOTORS, INC. ELMHURST AUTO MALL, INC. ELMHURST DODGE, INC. EMICH CHRYSLER PLYMOUTH, LLC EMICH DODGE, LLC EMICH LINCOLN-MERCURY, LLC EMICH LINCOLN-MERCURY, INC. EMICH OLDSMOBILE, LLC EMICH SUBARU WEST, LLC EMPIRE SERVICES AGENCY, INC. FINANCIAL SERVICES, INC. FIRST TEAM AUTOMOTIVE CORP. FIRST TEAM FORD, LTD FIRST TEAM FORD OF MANATEE, LTD. FIRST TEAM IMPORTS, LTD. FIRST TEAM INFINITI, LTD. FIRST TEAM JEEP EAGLE, CHRYSLER- PLYMOUTH, LTD. FIRST TEAM MANAGEMENT, INC. FIRST TEAM PREMIER, LTD. FIT KIT, INC. FLEMINGTON LAND ROVER, LLC FLORIDA AUTO CORP. FORD OF GARDEN GROVE LIMITED PARTNERSHIP FORD OF KIRKLAND, INC. FOX BUICX/XXXXX, INC. FOX CHEVROLET, INC. FOX HYUNDAI, INC. FOX, INC. FRED OAKLEY MOTORS, INC. XX. XXXXXRDALE NISSAN, INC. G.B. IMPORT SALES & SERVICE, LLC GENE EVANS FORD, LLC GEXXXX XXXXXRLIN NISSAN, INC XXXX XXXX FORD, INC. GOVERNMENT BLVD. MOTORS, INC. GULF MANAGEMENT, INC. H'S AUTO BODY, INC. HAYWARD DODGE, INC. HILLARD AUTO GROUP, INC. XXXXXWOOD IMPORTS LIMITED, INC. HOLLYWOOD KIA, INC. HORIZON CHEVROLET, INC. HOUSE OF IMPORTS, INC. HOUSTON AUTO IMPORTS GREENWAY, LTD. HOUSTON AUTO IMPORTS NORTH, LTD. HOUSTON IMPORTS GREENWAY-GP, INC. HOUSTON IMPORTS GREENWAY-LP, INC. HOUSTON IMPORTS NORTH-GP, INC. HOUSTON IMPORTS NORTH-LP, INC. HUB MOTOR CO. IRVINE IMPORTS, INC. IRVINE TOYOTA/NISSAN/VOLVO LIMITED PARTNERSHIP J-R ADVERTISING COMPANY J-R-M MOTORS COMPANY NORTHWEST, LLC J-R MOTORS COMPANY CENTRAL LLC J-R MOTORS COMPANY NORTH J-R MOTORS COMPANY SOUTH JEMAUTCO, INC. JERRY GLEASON CHEVROLET, INC. XXXXX GLEASON DODGE, INC. XXX XXXXXXN CHEVROLET CO. XXX XXXXLAN, FORD LINCOLN-MERCURY, INC. JOE MACPHERSON FORD JOE XXXXXXXXXX XXPORTS NO.1 XXX XXXXXERSON INFINITI XXX XXXXXXXXXN OLDSMOBILE XXXX X. Xxxxxx XXXCE FORD, LLC XXX XXVXXXXXXXX, INC. KELNAT ADVERTISING, LTD. CO. KENYON DODGE, INC. KING'S CROWN FORD, INC. KIRKLAND PONTIAC-BUICK-GMC, INC. KLJ OF NEVADA, INC. L.P. EVANS MOTORS, INC. X.X. XXXXS MOTORS WPB, INC. XXXXX CHILDREN, INC. LEX XXXKS CHEVROLET, INC. XXX XXBB'S FORD, INC. LXX XXXX'X IRVINE NISSAN, INC. XXXUS OF CERRITOS LIMITED PARTNERSHIP LGS HOLDING COMPANY LOU GRUBB CHEVROLET-ARROWHEAD, INC. LOU GRUBB CHEVROLET, L.L.C XXX XRUBB FORD, L.L.C LXXXXX, XXC. MC/RII, LLX M S AND S TOYOTA, INC. MACHOWARD LEASING MACPHERSON ENTERPRISES, INC. MAGIC ACQUISITION CORP. MANHATTAN MOTORS, INC. MARKS FAMILY DEALERSHIPS, INC. MARKS TRANSPORT, INC. MAROONE CAR AND TRUCK RENTAL COMPANY MAROONE CHEVROLET FT. LAUDERDALE, INC. MAROONE CHEVROLET, LLC MAROONE DODGE, LLC MAROONE DODGE POMPANO, INC. MAROONE FORD, LLC MAROONE ISUZU, LLC MAROONE JEEP-EAGLE, INC. MAROONE MANAGEMENT SERVICES, INC MAROONE OLDSMOBILE II, INC. MAROONE OLDSMOBILE, LLC MARSHALL LINCOLN-MERCURY, INC. XXXXXX XOLDINGS, INC. MXXXXXXCAL WARRANTY PROTECTION, INC. METRO CHRYSLER JEEP, INC. MIDWAY CHEVROLET, INC. MIKE HALL CHEVROLET, INC. XXXX XHAD CHRYSLER PLYMOUTH JEEP EAGLE, INC. MIKE SHAD FORD, INC. MIXXXX-XXXXXXXXX AUTOMOTIVE, LLC XXXXXXN BLVD. MOTORS, INC. MR. WHEELS, INC. MULLINAX EAST, INC. MULXXXXX XXRD NORTH CANTON, INC. MULLINAX FORD SOUTH, INC. XXXXXNAX LINCOLN-MERCURY, INC. MULLINAX MANAGEMENT, INC. XXXXXNAX OF MAYFIELD, INC. XXXXINAX XXXX XXRS, INC. XXXXXXT BEACH CARS, LLC NICHOLS FORD, INC. NISSXX XX XRANDON, INC. NORTHPOINX XXXXXOLET, INC. NORTHPOINT FORD, INC. NORTHWEST FINANCIAL GROUP, INC. ONTARIO DODGE, INC. ORANGE COUNTY AUTOMOTIVE IMPORTS, LLC ORLANDO IMPORTS, INC. PAYTON-WRIGHT FORD SALES, INC. XXXXXN CRAMER AUTOMOTIVE XXXXXX XXXXER FORD PEYTXX XXXXXX XXXINITI XXXXXX XXXXXX JAGUAR PEXXXX XXXXXX XINCOLN-MERCURY XXXXXX AUTOMOTIVE CORPORATION PIERCE, LLC PITRE BUICK-XXXXXAC-GMC OF SCOTTSDALE, INC. PITRE CHRYSLER-PLYMOUTH-JEEP OF BELL, INC. PITRE CHRYSLER-PLYMOUTH-JEEP OF SCOTTSDALE, INC. PITRE ISUZU-SUBARU-HYUNDAI OF SCOTTSDALE, INC. PITRE KIA OF SCOTTSDALE, INC. PLAINS CHEVROLET, INC. PMWQ, INC. PMWQ, LTD. PORT CITY IMPORTS-HO, INC. PORT CITY IMPORTS, INC. PORT CITY PONTIAC-GMC TRUCKS, INC. PRIME AUTO RESOURCES, INC. QUALITY NISSAN, INC. QUANTUM PREMIUM FINANCE CORPORATION QUINLAN MOTORS, INC. R. XXXX XIMITED R.L. BUSCHER II, INC. R.X. XXXXXXX XXX, INC. XXXX XXXXXX HOLDINGS, INC. REPUBLIC ANDERSON INVESTMENT GROUP, XXC. REPUBLIC DM PROPERTY ACQUISITION CORP. REPUBLIC RESOURCES COMPANY (RRC) REPUBLIC RISK MANAGEMENT SERVICES, INC. REPUBLIC OF ROCHESTER, INC. RESOURCES AVIATION, INC. RI/ASC ACQUISITION CORP. RI/BB ACQUISITION CORP. RI/BBNM ACQUISITION CORP RI/BRC REAL ESTATE CORP. RI/CC ACQUISITION CORP. RI/DM ACQUISITION CORP. RI/HGMC ACQUISITION CORP. RI/HOLLYWOOD NISSAN ACQUISITION CORP. RI/LLC-2 ACQUISITION CORP. RI/LLC ACQUISITION CORP. RI MERGER CORP. RI/PII ACQUISITION CORP. RI/RMC ACQUISITION CORP RI/RMP ACQUISITION CORP. RI/RMT ACQUISITION CORP. RI/SBC ACQUISITION CORP. RI SHELF CORP. RI/WFI ACQUISITION CORPORATION RII MANAGEMENT COMPANY ROSECRANS INVESTMENTS, LLC ROSEVILLE MOTOR CORPORATION RRM CORPORATION, INC. RSHC, INC. SAHARA IMPORTS, INC. SAHARA NISSAN, INC. SANTA ANA AUTO CENTER SAUL CHXXXOLET, INC. SCX XXALTY II, INC. SCM REALTY, INC. SERVICE STATION HOLDING CORP. SGSCP LIMITED PARTNERSHIP SHAMROCK FORD, INC. SIX JAYS LLC SMI MOTORS, INC. SMYTHE EUROPEAN, INC. SXXXXXXST LEASE CAR, INC. SOUTHTOWN FORD, INC. SOUTHWEST DODGE, LLC SPIT FIRE PROPERTIES, INC. SPOKANE MITSUBISHI DEALERS ADVERTISING ASSOCIATION, INC. STAR MOTORS, LLC STEAKLEY CHEVROLET, INC. XXXXXXECHASE MOTOR COMPANY STEVE MOORE CHEVROLET DELRAY, LLC STEVE MOORE CHEVROLET, LLC XXXXX XOORE, LLC STEVE XXXXX'X XXX-RIGHT AUTO CENTER, INC. STEVE RAYMAN PONTIAC-BUICK-GMC-TRUCK, LLC STEVENS CREEK MOTORS, INC. SUNRISE NISSAN OF JACKSONVILLE, INC. SUNRISE NISSAN OF ORANGE PARK, INC. SUNSET PONTIAC-GMC, INC. SUNSET PONTIAC-GMC TRUCK SOUTH, INC. SUPERIOR NISSAN, INC. SUTHERLIN CHRYSLER-PLYMOUTH JEEP- EAGLE, LLC SUTHERLIN IMPORTS, INC. XXXXXXXXN IMPORTS, LLC XXXXXXXXX NISSAN, LLC SXXXXXXXX NISSAN OF TOWN CENTER, INC. T-FIVE, INC. T-WEST SALES & SERVICE, INC. TALLAHASSEE AUTOMOTIVE GROUP, INC. TALLAHASSEE CHRYSLER PLYMOUTH, INC. TARTAN ADVERTISING, INC. TASHA INCORPORATED TAYLXX XXEP EAGLE, LLC XXXX XODGE, INC. TERRY YORK MOTOR CARS, LTD. XXXXX FORD, INC. TEXAN FORD SALES, INC. TEXAN LINCOLN-MERCURY, INC. THE CONSULTING SOURCE, INC. THE PIERCE CORPORATION II, INC. XORRANCE NISSAN, LLC TOUSLEY FORD, INC. TOWN & XXXXTRY CHRYSLER JEEP, INC. TOYOTA CERRITOS LIMITED PARTNERSHIP TRIANGLE CORPORATION VALENCIA DODGE VALENCIA LINCOLN-MERCURY, INC. XXXXXX XHEVROLET, INC. VANDERBEEK MOTORS, INC. XXXXXXXXXK OLDS/GMC TRUCK, INC. XILLAGE MOTORS, LLC VINCE WIESE CHEVROLET, INC. X.X. XANKSTON ENTERPRISES, INC. X.X. BANKSTON LINCOLN-MERCURY, INC. W.O. BANKSTON NISSAN, INC. W.X. XXXXSTON PAINT AND BODY, INC. XALLACE DODGE, LLC WALLXXX XXXX, XXX WALLAXX XXXXXXX, INC. WXXXXXX LINCOLN-MERCURY, LLC XXXXXXX XISSAN, LLC WEBX XXXXXOTIVE GROUP, INC. WEST COLTON CARS, INC. WEST SIDE MOTORS, INC. WESTGATE CHEVROLET, INC. WOODY CAPITAL INVESTMENT COMPANY II WOODY CAPITAL INVESTMENT COMPANY III WORKING MAN'S CREDIT PLAN, INC. YORK ENTERPRISES SOUTH, INC. By: /s/ Marc Bourhis ------------------------------ Name: Marc Bourhis Title: Assistant Vice President Xxxxxxxxx EXHIBIT A A-1 (Face of Note) -------------------------------------------------------------------------------- CUSIP _____============================================================================= CUSIP:

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29___________, 2005 L-3 COMMUNICATIONS 200__ METALDYNE CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ -------------------------------------------- Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORSEACH OF THE GUARANTORS LISTED ON SCHEDULE I HERETO: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- -------------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK[ ], as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- -------------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President Schedule I SCHEDULE OF GUARANTORS The following schedule lists each Guarantor under the Indenture as of the date of the Indenture:* ER Acquisition Corp. GMTI Holding Company Halyard Aviation Services, Inc. MASG Disposition, Inc. MASX Energy Services Group, Inc. Metaldyne Accura Tool & Mold, Inc. Metaldyne Company LLC Metaldyne DuPage Die Casting Corporation Metaldyne Europe, Inc. Metaldyne European Holdings Inc. Metaldyne Lester Precision Die Casting, Inc. Metaldyne Lixxx Xxtals Company, Inc. Metaldyne Machining and Assembly Company, Inc. Metaldyne Precision Forming-Fort Wayne, Inc. Metaldyne Services, Inc. Metaldyne Sintered Components of Indiana, Inc. Metaldyne Sintered Components, Inc. Metaldyne Tubular Products, Inc. Metaldyne U.S. Holding Co. Precision Headed Products, Inc. Punchcraft Company Stahl International, Inc. W.C. McCurdy & Xx. Windfall Products, Inx. Windfall Specialty Powders, Inc. WIPCO, Inc. ---------- * To be modified to reflect actual guarantors on date of original issuance of the Notes under the Company's Indenture, dated as of June 20, 2002, with The Bank of New York, as trustee, governing the Company's 11% Senior Subordinated Notes due 2012. EXHIBIT A ([Face of Note) ] -------------------------------------------------------------------------------- CUSIP CUSIP/CINS ____________ 10% [Series A] [Series B] Senior Subordinated Notes due 201__ No. _____ $__________ METALDYNE CORPORATION promises to pay to ___________________________________________________________ or registered assigns, the principal sum of ___________________________________________________________ Dollars on [the tenth anniversary of the 15th day of the month in which the Notes are originally issued] Interest Payment Dates: [the 15th day of the month in which the Notes are originally issued] and [the six-month anniversary of the 15th day of the month in which the Notes are originally issued] Record Dates: [the 1st day of the month in which the Notes are originally issued] and [the six-month anniversary of the 1st day of the month in which the Notes are originally issued] Dated: __________, 200__ METALDYNE CORPORATION By: ----------------------------------------- Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: [ ], as Trustee By: _____________________________ Authorized Signatory -------------------------------------------------------------------------------- [Back of Note] 10% [Series A] [Series B] Senior Subordinated Notes due 201__ [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29the date first written above. ISSUERS: TARGA RESOURCES PARTNERS LP By: Targa Resources GP LLC, 2005 L-3 COMMUNICATIONS Its general partner By: /s/ Xxxxxxx X. Xxxxx Name: Xxxxxxx X. Xxxxx Title: Senior Vice President, Chief Financial Officer and Treasurer TARGA RESOURCES PARTNERS FINANCE CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxxx Title: Senior Vice President, Chief Financial Officer and Treasurer [Indenture] GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE TARGA BADLANDS LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT TARGA CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY TARGA COGEN LLC TARGA DOWNSTREAM LLC TARGA GAS MARKETING LLC TARGA GAS PIPELINE LLC TARGA GAS PROCESSING LLC TARGA INTRASTATE PIPELINE LLC TARGA LIQUIDS MARKETING AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION TRADE LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS TARGA LOUISIANA INTRASTATE LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM TARGA MIDSTREAM SERVICES LLC WOLF COACH, INC., as Guarantors TARGA MLP CAPITAL LLC TARGA NGL PIPELINE COMPANY LLC TARGA RESOURCES OPERATING GP LLC TARGA RESOURCES OPERATING LLC TARGA SOUND TERMINAL LLC TARGA TERMINALS LLC TARGA TRANSPORT LLC By: /s/ Xxxxxxxxxxx Xxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxx Name: Xxxxxxxxxxx Xxxxxxx X. Xxxxxxx Xxxxx Title: Senior Vice President President, Chief Financial Officer and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor ByTreasurer [Indenture] TRUSTEE: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Xxxxxx Name: Xxxxx X. Xxxxxx Xxxxxx Title: Assistant Vice President EXHIBIT A ([Face of Note) -------------------------------------------------------------------------------- ] CUSIP _____1 6.625% Senior Notes due 2020 No. $ TARGA RESOURCES PARTNERS LP and TARGA RESOURCES PARTNERS FINANCE CORPORATION promise to pay to , or registered assigns, the principal sum of DOLLARS [or such other amount as may be indicated on the attached Schedule of Exchanges of Interests in the Global Note],2 on October 1, 2020. Interest Payment Dates: April 1 and October 1 Record Dates: March 15 and September 15 Dated: , 20 TARGA RESOURCES PARTNERS LP By: Targa Resources GP LLC, Its General Partner By: Name: Title: TARGA RESOURCES PARTNERS FINANCE CORPORATION By: Name: Title:

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29May 21, 2005 2003 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ ------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: AMI INSTRUMENTS, INC. APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES CELERITY SYSTEMS INCORPORATED EER SYSTEMS, INC. ELECTRODYNAMICS, INC. XXXXXXXX AEROSPACE COMPONENT OVERHAUL & REPAIR, INC. XXXXXXXX AVIONICS SYSTEMS, INC. XXXXXXXX FLIGHTSYSTEMS, INC. XXXXXXXX, INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS ANALYTICS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS ATLANTIC SCIENCE & TECHNOLOGY CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY X-0 XXXXXXXXXXXXXX XXX CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. INTEGRATED SYSTEMS L.P. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONINVESTMENTS, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS CORPORATION DELAWARE L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS CORPORATION CALIFORNIA L-3 COMMUNICATIONS SPD TECHNOLOGIES, INC. L-3 COMMUNICATIONS STORM CONTROL SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC TMA CORPORATION L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES TECHNOLOGY INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD ORD, INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SOUTHERN CALIFORNIA MICROWAVE, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR HOLDINGS, INC. SPD SWITCHGEAR, INC. SYCOLEMAN CORPORATION TELOS CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WESCAM SONOMA INC. WOLF COACH, INC., . as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- ______________________________________ Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- _________________________________ Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- _______________________________ Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- ================================================================================ CUSIP _____ 6-1/8% Senior Subordinated Notes due 2013 No. ___ $_________ L-3 COMMUNICATIONS CORPORATION promises to pay to ______________________________________ or registered assigns, the principal sum of ____________________________________ Dollars on July 15, 2013. Interest Payment Dates: January 15 and July 15.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July January 29, 2005 L-3 COMMUNICATIONS CORPORATION 2010 SIGNATURES VANGUARD HEALTH HOLDING COMPANY II, LLC By: /s/ Xxxxxxx XXXXXX X. Xxxxxxxxx ------------------------------------ XXXXXXX Name: Xxxxxx X. Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOMExecutive Vice President VANGUARD HOLDING COMPANY II, INC. BROADCAST SPORTS By: /s/ XXXXXX X. XXXXXXX Name: Xxxxxx X. Xxxxxxx Title: Executive Vice President VANGUARD HEALTH SYSTEMS, INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS., as Guarantor By: /s/ XXXXXX X. XXXXXXX Name: Xxxxxx X. Xxxxxxx Title: Executive Vice President [Indenture] VANGUARD HEALTH HOLDING COMPANY I, LLC BHS PHYSICIANS ALLIANCE FOR ACE, LLC HOSPITAL DEVELOPMENT OF WEST PHOENIX, INC. XXXXXXXX XXXXXXX PHYSICIANS GROUP, LLC VANGUARD HEALTH FINANCIAL COMPANY, LLC VANGUARD HEALTH MANAGEMENT, INC. HYGIENETICS ENVIRONMENTAL VHS ACQUISITION CORPORATION VHS ACQUISITION SUBSIDIARY NUMBER 1, INC. VHS ACQUISITION SUBSIDIARY NUMBER 2, INC. VHS ACQUISITION SUBSIDIARY NUMBER 5, INC. VHS ACQUISITION SUBSIDIARY NUMBER 7, INC. VHS ACQUISITION SUBSIDIARY NUMBER 8, INC. VHS ACQUISITION SUBSIDIARY NUMBER 9, INC. VHS ACQUISITION SUBSIDIARY NUMBER 10, INC. VHS ACQUISITION SUBSIDIARY NUMBER 11, INC. VHS ACQUISITION SUBSIDIARY NUMBER 12, INC. VHS CHICAGO MARKET PROCUREMENT, LLC VHS GENESIS LABS, INC. VHS HOLDING COMPANY, INC. VHS IMAGING CENTERS, INC. VHS OF ANAHEIM, INC. VHS OF ARROWHEAD, INC. VHS OF HUNTINGTON BEACH, INC. VHS OF ILLINOIS, INC. VHS OF ORANGE COUNTY, INC. VHS OF PHOENIX, INC. VHS OF SOUTH PHOENIX, INC. VHS OUTPATIENT CLINICS, INC. BAPTIST MEDICAL MANAGEMENT SERVICE ORGANIZATION, LLC HEALTHCARE COMPLIANCE, L.L.C. XXXXXXX HEALTH PROVIDERS, INC. XXXXXXX MANAGEMENT SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSPROS TEMPORARY STAFFING, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT WATERMARK PHYSICIAN SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx /s. XXXXXX X. Xxxxxxx ---------------------------------------- XXXXXXX Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx Title: Executive Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. VHS SAN ANTONIO PARTNERS, LLC, as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATIONVHS Acquisition Subsidiary Number 5, Inc., its Member By: /s/ XXXXXX X. XXXXXXX Name: Xxxxxx X. Xxxxxxx Title: Executive Vice President THE ANAHEIM VHS LIMITED PARTNERSHIP, as Guarantor By: VHS of Anaheim, Inc., its General Partner By: /s/ Xxxxxxxxxxx XXXXXX X. Xxxxxxx ---------------------------------------- XXXXXXX Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx Title: Executive Vice President THE HUNTINGTON BEACH VHS LIMITED PARTNERSHIP, as Guarantor By: VHS of Huntington Beach, Inc., its General Partner By: /s/ XXXXXX X. XXXXXXX Name: Xxxxxx X. Xxxxxxx Title: Executive Vice President THE VHS ARIZONA IMAGING CENTERS LIMITED PARTNERSHIP, as Guarantor By: VHS Imaging Centers, Inc., its General Partner By: /s/ XXXXXX X. XXXXXXX Name: Xxxxxx X. Xxxxxxx Title: Executive Vice President [Indenture] Dated as of January 29, 2010 U.S. BANK NATIONAL ASSOCIATION By: /s/ XXXXXXX XXXXXXXX Authorized Person THE BANK OF NEW YORKSignatory Indenture Counterpart Signature Page EXHIBIT A1 [Face of Note] CUSIP/ISIN 8% Notes due 2018 No. ______ $_________ VANGUARD HEALTH HOLDING COMPANY II, LLC and VANGUARD HOLDING COMPANY II, INC. promise to pay to CEDE & CO. or registered assigns, the principal sum of $ DOLLARS on February 1, 2018. Interest Payment Dates: February 1 and August 1 Record Dates: January 15 and July 15 Dated: January 29, 2010 VANGUARD HEALTH HOLDING COMPANY II, LLC By: Name: Title: VANGUARD HOLDING COMPANY II, INC. By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: U.S. Bank National Association, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note) -------------------------------------------------------------------------------- CUSIP _____] 8% Senior Notes due 2018 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table table of Contentscontents, Crosscross-Reference Table reference table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 77 SIGNATURES Dated as of July 29June 25, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM2004 BEVERLY ENTERPRISES, INC. BROADCAST SPORTS INCXy: /s/ RICHARD D. SKELLY, JR. D.P. ASSOCIATES INC--------------------------- Name: Richard D. Skelly, Jr. Xxxxx: Xx. ELECTRODYNAMICSXX & Xxxxxurer 4F FUNDING, INC. XXXXXXXX AEDON HOMECARE - HOUSTON, LLC AEDON HOMECARE - MINNESOTA, LLC AEDON HOMECARE, LLC AEDON STAFFING, LLC AEGIS THERAPIES - OREGON, INC. HYGIENETICS ENVIRONMENTAL AEGIS THERAPIES - WISCONSIN, INC. AEGIS THERAPIES, INC. AEGIS THERAPIES - FLORIDA, INC. AFFIRMACARE, LLC AGI-CAMELOT, INC. ASERACARE HOSPICE - BIRMINGHAM, LLC ASERACARE HOSPICE - CORINTH, LLC ASERACARE HOSPICE - DEMOPOLIS, LLC ASERACARE HOSPICE - HAMILTON, LLC ASERACARE HOSPICE - JACKSON, LXX ASERACARE HOSPICE - MARSHALL COXXXX, XLC ASERACARE HOSPICE - MEMXXXX, XXC ASERACARE HOSPICE - MERIDIAN, LLC ASERACARE HOSPICE - MONROEVILLE, LLC ASERACARE HOSPICE - NEW ALBANY, LLC ASERACARE HOSPICE - NEW HORIZONS, LLC ASERACARE HOSPICE - PHILADELPHIA, LLC ASERACARE HOSPICE - RUSSELLVILLE, LLC ASERACARE HOSPICE - SENATOBIA, LLC ASERACARE HOSPICE - TENNESSEE, LLC BEVERLY - BELLA VISTA HOLDING, INC. BEVERLY - XXXXXXXX XXXXEY HOLDING, INC. BEVEXXX - XAPID CITY HOLDING, INC. BEVERLY EXXXXXXXSES - ALABAMA, INC. BEVERLY XXXXXXXISES - ARIZONA, INC. BEVERLY XXXXXXXISES - ARKANSAS, INC. BEVERLY XXXXXXRISES - CALIFORNIA, INC. BEVERXX XXXXRPRISES - DELAWARE, INC. BEVERLY XXXXXXRISES - DISTRICT OF COLUMBIA, INC. XXVERLY ENTERPRISES - FLORIDA, INC. BEVERLY XXXXXXXISES - GARDEN TERRACE, INC. BXXXXXX ENTERPRISES - GEORGIA, INC. BEVERLY XXXXXXXISES - HAWAII, INC. BEVERLY EXXXXXXXSES - ILLINOIS, INC. BEVERLY XXXXXXRISES - INDIANA, INC. BEVERLY XXXXXXXISES - KANSAS, LLC BEVERLY ENXXXXXXXES - KENTUCKY, INC. BEVERLY XXXXXXRISES - MARYLAND, INC. BEVERLY XXXXXXRISES - MASSACHUSETTS, INC. BEXXXXX XNTERPRISES - MINNESOTA, LLC BEVERLY XXXXXXRISES - MISSISSIPPI, INC. BEVEXXX XXXERPRISES - MISSOURI, INC. BEVERLY XXXXXXRISES - NEBRASKA, INC. BEVERLY XXXXXXRISES - NEW JERSEY, INC. BEVERXX XXXXRPRISES - NORTH CAROLINA, INC. BXXXXXX ENTERPRISES - OHIO, INC. BEVERLY ENTXXXXXXXS - OREGON, INC. BEVERLY EXXXXXXXSES - PENNSYLVANIA, INC. BEVXXXX XXTERPRISES - SOUTH CAROLINA, INC. BXXXXXX ENTERPRISES - TENNESSEE, INC. BEVERXX XXXXRPRISES - TEXAS, INC. BEVERLY ENXXXXXXXES - VIRGINIA, INC. BEVERLY XXXXXXRISES - WASHINGTON, INC. BEVERXX XXXXRPRISES - WEST VIRGINIA, INC. BEXXXXX XNTERPRISES - WISCONSIN, INC. BEVERLX XXXXXPRISES INTERNATIONAL LIMITED BEXXXXX XEALTH AND REHABILITATION SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSXXVERLY HEALTHCARE - CALIFORNIA, INC. L-3 COMMUNICATIONS AEROMETBEVERLX XXXXXHCARE - ROCHESTER MN, LLC BEVERXX XXXXTHCARE MANAGEMENT - MN, LLC BEVEXXX XXXLTHCARE, LLC BEVERLY MANOR INC. OX XXXXXI BEVERLY SAVANA XXX XXXOR, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE BEVERLY-INDIAXXXXXXX, LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYBEVRD, LLC CERES SELECT, LLC CERES STRATEGIES MEDICAL SERVICES, LLC CERES STRATEGIES, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSCOMMERCIAL MANAGEMENT, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGSCOMMUNITY CARE, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT COMPASSION AND PERSONAL CARE SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMSEASTERN HOME HEALTH SUPPLY & EQUIPMENT CO., INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESHALE NANI, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONHALLMARK CONVALESCENT HOMES, XXX. HOMECARE PREFERRED CHOICE, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSHOSPICE OF EASTERN CAROLINA, INC. L-3 COMMUNICATIONS SONOMA EOHOSPICE PREFERRED CHOICE, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LARES CARE RESOURCE, LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRILIBERTY NURSING HOMXX, XNCORPORATED MATRIX OCCUPATIONAL HEALTH, INC. PAC ORD INC. POWER PARAGONMATRIX WELLNESS, LLC MEDICAL ARTS HEALTH FACILITY OF LAWRENCEVILLE, INC. SHIP ANALYTICSMODERNCARE OF LUMBERTON, INC. SHIP ANALYTICS INTERNATIONALNEBRASKA CITY S-C-H, INC. SHIP ANALYTICS USANURSING HOME OPERATORS, INC. SPD ELECTRICAL SYSTEMSPETERSEN HEALTH CARE, INC. SPD SWITCHGEAR SOUTH ALABAMA NURXXXX XXXE, INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS SOUTH DAKOTA - BEVERLY ENTERPRISES, INC. WESCAM AIR OPS SOUTHEASTERN HOME XXXXXXX EQUIPMENT - ALABAMA, LLC WESCAM HOLDINGS (US) SOUTHEASTERN HOME MEDICAL EQUIPMENT - MISSISSIPPI, LLC SOUTHEASTERN HOME MEDICAL EQUIPMENT - TENNESSEE, LLC SPECTRA HEALTHCARE ALLIANCE, INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHTAR HEEL INFUSION COMPANY, INC.. TMD DISPOSITION COMPANY VANTAGE HEALTHCARE CORPORATION VIZIA HEALTHCARE DESIGN GROUP, as Guarantors LLC By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- JOHN G. ARENA ------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx John G. Arena Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKBNY MIDWEST TRUST XXXXXXX, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- D.G. DONOVAN ---------------------- Name: Xxxxx X. Xxxxxx D.G. Donovan Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____Xxxxxxxxx

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29the date first written above. REGENCY ENERGY PARTNERS LP By: Regency GP LP, 2005 L-3 COMMUNICATIONS CORPORATION its general partner By: Regency GP LLC, its general partner By: /s/ Xxxxxxx Xxxxxx X. Xxxxxxxxx ------------------------------------ Xxxx Name: Xxxxxxx Xxxxxx X. Xxxxxxxxx Xxxx Title: GUARANTORSExecutive Vice President and Chief Financial Officer REGENCY ENERGY FINANCE CORP. By: APCOM/s/ Xxxxxx X. Xxxx Name: Xxxxxx X. Xxxx Title: Vice President GUARANTORS REGENCY OLP GP LLC By: /s/ Xxxxxx X. Xxxx Name: Xxxxxx X. Xxxx Title: Vice President REGENCY GAS SERVICES LP By: Regency OLP GP LLC, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSits general partner By: /s/ Xxxxxx X. Xxxx Name: Xxxxxx X. Xxxx Title: Vice President CDM RESOURCE MANAGEMENT LLC CONNECT GAS PIPELINE, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICESLLC FRONTSTREET HUGOTON LLC GULF STATES TRANSMISSION LLC PENN VIRGINIA OPERATING CO., INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSLLC PVR MIDSTREAM JV HOLDINGS LLC REGAL MIDSTREAM LLC REGENCY FIELD SERVICES LLC REGENCY GAS UTILITY LLC REGENCY HAYNESVILLE INTRASTATE GAS LLC REGENCY HYDROCARBONS LLC REGENCY XXXXXXX LLC REGENCY LIQUIDS PIPELINE LLC REGENCY MARCELLUS GAS GATHERING LLC REGENCY MIDCONTINENT EXPRESS LLC REGENCY MIDSTREAM LLC REGENCY NEPA GAS GATHERING LLC REGENCY PIPELINE LLC REGENCY RANCH JV LLC REGENCY TEXAS PIPELINE LLC REGENCY UTICA GAS GATHERING LLC RGP MARKETING LLC RGU WEST LLC RHEP CRUDE LLC WGP-KHC, INC. L-3 COMMUNICATIONS AEROMETLLC By: FrontStreet Hugoton LLC, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYits sole member By: Regency Gas Services LP, INC. L-3 COMMUNICATIONS AIS its sole member By: Regency OLP GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSLLC, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE its general partner By: /s/ Xxxxxx X. Xxxx Name: Xxxxxx X. Xxxx Title: Vice President PUEBLO HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS PUEBLO MIDSTREAM GAS CORPORATION L-3 COMMUNICATIONS CSI, RGP WESTEX GATHERING INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors WEST TEXAS GATHERING COMPANY By: /s/ Xxxxxxxxxxx Xxxxxx X. Xxxxxxx ---------------------------------------- Xxxx Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx Xxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor DULCET ACQUISITION LLC FIELDCREST RESOURCES LLC K RAIL LLC KANAWHA RAIL LLC LJL, LLC LOADOUT LLC SUNCREST RESOURCES LLC XXXXX FORK LLC By: L-3 COMMUNICATIONS AIS Penn Virginia Operating Co., LLC, their sole member By: Regency Gas Services LP, its sole member By: Regency OLP GP CORPORATIONLLC, as General Partner its general partner By: /s/ Xxxxxxxxxxx Xxxxxx X. Xxxxxxx ---------------------------------------- Xxxx Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx Xxxx Title: Authorized Person THE BANK OF NEW YORKVice President XXXXX FARGO BANK, NATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx Xxxxxxx X. Xxxxxx ---------------------------------------- Xxxxxxxx Name: Xxxxx Xxxxxxx X. Xxxxxx Xxxxxxxx Title: Assistant Vice President EXHIBIT A ([Face of Note) -------------------------------------------------------------------------------- ] CUSIP _____[ ] 8.375% Senior Notes due 2019 No. $ REGENCY ENERGY PARTNERS LP and REGENCY ENERGY FINANCE CORP. promise to pay to , or registered assigns, the principal sum of DOLLARS on June 1, 2019. Interest Payment Dates: June 1 and December 1 Record Dates: May 15 and November 15 Dated: , 20 REGENCY ENERGY PARTNERS LP By: Regency GP LP, its general partner By: Regency GP LLC, its general partner By: Name: Title: REGENCY ENERGY FINANCE CORP. By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: XXXXX FARGO BANK, NATIONAL ASSOCIATION, as Trustee By: Authorized Signatory [Back of Note] 8.375% Senior Notes due 2019 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Regulation S Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29the date first written above. ISSUERS: TARGA RESOURCES PARTNERS LP By: Targa Resources GP LLC, 2005 L-3 COMMUNICATIONS Its general partner By: /s/ Xxxxxxx X. Xxxxx Name: Xxxxxxx X. Xxxxx Title: Senior Vice President, Chief Financial Officer and Treasurer TARGA RESOURCES PARTNERS FINANCE CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxxx Title: Senior Vice President, Chief Financial Officer and Treasurer [Indenture] GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE TARGA BADLANDS LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT TARGA CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY TARGA COGEN LLC TARGA DOWNSTREAM LLC TARGA GAS MARKETING LLC TARGA GAS PIPELINE LLC TARGA GAS PROCESSING LLC TARGA INTRASTATE PIPELINE LLC TARGA LIQUIDS MARKETING AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION TRADE LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS TARGA LOUISIANA INTRASTATE LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM TARGA MIDSTREAM SERVICES LLC WOLF COACH, INC., as Guarantors TARGA MLP CAPITAL LLC TARGA NGL PIPELINE COMPANY LLC TARGA RESOURCES OPERATING GP LLC TARGA RESOURCES OPERATING LLC TARGA SOUND TERMINAL LLC TARGA TERMINALS LLC TARGA TRANSPORT LLC By: /s/ Xxxxxxxxxxx Xxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxx Name: Xxxxxxxxxxx Xxxxxxx X. Xxxxxxx Xxxxx Title: Senior Vice President President, Chief Financial Officer and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor ByTreasurer [Indenture] TRUSTEE: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Xxxxxx Name: Xxxxx X. Xxxxxx Xxxxxx Title: Assistant Vice President EXHIBIT A ([Face of Note) -------------------------------------------------------------------------------- ] CUSIP _____87612B AQ51 4.125% Senior Notes due 2019 No. $ TARGA RESOURCES PARTNERS LP and TARGA RESOURCES PARTNERS FINANCE CORPORATION promise to pay to , or registered assigns, the principal sum of DOLLARS [or such other amount as may be indicated on the attached Schedule of Exchanges of Interests in the Global Note],2 on November 15, 2019. Interest Payment Dates: May 15 and November 15 Record Dates: May 1 and November 1 Dated: , 20 TARGA RESOURCES PARTNERS LP By: Targa Resources GP LLC, Its General Partner By: Name: Title: TARGA RESOURCES PARTNERS FINANCE CORPORATION By: Name: Title:

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pagespage] 106 [SIGNATURES] 107 SIGNATURES Dated as of July 29March 23,2004 CALPINE GENERATING COMPANY, 2005 L-3 COMMUNICATIONS CORPORATION LLC By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxx Xxxx ---------------------------------- Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxx Xxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner CALGEN FINANCE CORP. By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxx Xxxx ---------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxx Xxxx Title: Authorized Person Vice President [First Priority Indenture - Calpine Generating Company, LLC and CalGen Finance Corp.] THE BANK OF NEW YORKGUARANTORS: CALGEN EXPANSION COMPANY, LLC CPN FREESTONE, LLC CALPINE FREESTONE, LLC CALPINE FREESTONE ENERGY GP, LLC CALPINE CHANNEL ENERGY CENTER LP, LLC CALPINE CHANNEL ENERGY CENTER GP, LLC CHANNEL POWER GP, LLC CALGEN EQUIPMENT FINANCE HOLDINGS, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY ONE, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY THREE LLC CALGEN EQUIPMENT FINANCE COMPANY, LLC NUECES BAY ENERGY LLC CALPINE NORTHBROOK SOUTHCOAST INVESTORS, LLC CALPINE CORPUS CHRISTI ENERGY GP, LLC ZION ENERGY LLC LOS MEDANOS ENERGY CENTER, LLC XXXXXX ENERGY CENTER, LLC XXXXXXXX ENERGY LLC DECATUR ENERGY CENTER, LLC CALPINE XXXXX POWER I, LLC CALPINE XXXXX POWER II, LLC CALPINE BAYTOWN ENERGY CENTER LP, LLC CALPINE BAYTOWN ENERGY CENTER GP, LLC BAYTOWN POWER GP, LLC COLUMBIA ENERGY LLC DELTA ENERGY CENTER, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY TWO, LLC PASTORIA ENERGY FACILITY L.L.C. CALPINE PASTORIA HOLDINGS, LLC Executing this First Priority Indenture on behalf of and so as to bind each of the limited liability companies named above under the caption "The Guarantors" By: /s/ Xxxxx Xxxx ------------------------------------------------ Name: Xxxxx Xxxx Title: Vice President 108 THE GUARANTORS: FREESTONE POWER GENERATION LP CALPINE FREESTONE ENERGY, LP CALPINE POWER EQUIPMENT LP CHANNEL POWER, LP CHANNEL ENERGY CENTER, LP CALPINE CORPUS CHRISTI ENERGY, LP CORPUS CHRISTI COGENERATION LP CALPINE XXXXX POWER, L.P. BAYTOWN ENERGY CENTER, LP BAYTOWN POWER,LP Executing this First Priority Indenture on behalf of and so as to bind each of the limited partnerships named above under the caption "The Guarantors" By: /s/ Xxxxx Xxxx ------------------------------------------------ Name: Xxxxx Xxxx Title: Vice President 109 WILMINGTON TRUST FSB, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- XxXxxxxx ---------------------------------- Name: Xxxxx X. Xxxxxx XxXxxxxx Title: Assistant Vice President [First Priority Indenture - Calpine Generating Company, LLC and CalGen Finance Corp.] SCHEDULE A PERMITTED PRIOR LIENS EXISTING ON THE CLOSING DATE See attached. SCHEDULE A-1 Lien in favor of General Electric Capital Corporation relating to the lease of a crane by Freestone Power Generation LP. (Delaware UCC Financing Statement #03-0026032006 - April 30, 2003) EXHIBIT A ([Face of Note) -------------------------------------------------------------------------------- ] CUSIP [13135B AA4--144A] [13135B AE 6--Exchange] ISIN [US13135BAA44--144A] [US13135BAE65--Exchange] First Priority Secured Floating Rate Note due 2009 No._____ $_______ CALPINE GENERATING COMPANY, LLC CALGEN FINANCE CORP. promises to pay to _______________ or registered assigns, the principal sum of ___________________________________________________________ Dollars on April 1, 2009.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29September 14, 2005 L-3 COMMUNICATIONS AMERISOURCEBERGEN CORPORATION ByBY: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ NameNAME: Xxxxxxx X. Xxxxxxxxx TitleTITLE: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL AMBULATORY PHARMACEUTICAL SERVICES, INC. INTERSTATE ELECTRONICS AMERISOURCEBERGEN DRUG CORPORATION KDI PRECISION PRODUCTSAMERISOURCEBERGEN HOLDING CORPORATION AMERISOURCEBERGEN SERVICES CORPORATION AMERISOURCE HEALTH SERVICES CORPORATION AMERISOURCE SALES CORPORATION XXXXXXXX PACKAGING, INC. L-3 COMMUNICATIONS AEROMETAPS ENTERPRISES HOLDING COMPANY ASD SPECIALTY HEALTHCARE, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYAUTOMED TECHNOLOGIES, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS BROWNSTONE PHARMACY, INC. CAPSTONE MED, INC. CAPSTONE PHARMACY OF DELAWARE, INC. CLINICARE CONCEPTS, INC. COMPUSCRIPT, INC. COMPUTRAN SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGSXXXXXXXXXX RX SERVICES OF MASSACHUSETTS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIXXXXXXXXXX RX SERVICES OF RHODE ISLAND, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT EXPRESS PHARMACY SERVICES, INC. L-3 COMMUNICATIONS ILEX FAMILY CENTER PHARMACY, INC. GOOT NURSING HOME PHARMACY, INC. HEALTH SERVICES CAPITAL CORPORATION IHS ACQUISITION XXX, INC. IMEDEX, INC. INSTA-CARE PHARMACY SERVICES CORPORATION INTEGRATED COMMERCIALIZATION SOLUTIONS, INC. INTERNATIONAL PHYSICIAN NETWORKS, L.L.C. MEDICAL INITIATIVES, INC. PHARM PLUS ACQUISITION, INC. PHARMACY CORPORATION OF AMERICA, INC. PHARMACY CORPORATION OF AMERICA-MASSACHUSETTS, INC. PHARMERICA DRUG SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESPHARMERICA, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONPMSI, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSPREMIER PHARMACY, INC. L-3 COMMUNICATIONS SONOMA EOROMBRO’S DRUG CENTER, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRIRXFIRST, INC. PAC ORD INC. POWER PARAGONSOLANA BEACH, INC. SHIP ANALYTICSSOUTHWEST PHARMACIES, INC. SHIP ANALYTICS INTERNATIONALINDENTURE SPECIALTY PHARMACY, INC. SHIP ANALYTICS USASPECIALTY PHARMACY OF CALIFORNIA, INC. SPD ELECTRICAL SYSTEMSXXXXXX & XXXXX ASSET RECOVERY, INC. SPD SWITCHGEAR TELEPHARMACY SOLUTIONS, INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS THE LASH GROUP, INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) TMESYS(TM), INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHUS BIOSERVICES CORPORATION VALUE APOTHECARIES, INC. By: Name: Title: PHARMACY HEALTHCARE SOLUTIONS, LTD. BY: VALUE APOTHECARIES, INC., as Guarantors AS GENERAL PARTNER By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor REIMBURSEMENT EDUCATION NETWORK, LLC BY: THE LASH GROUP, INC., ITS SOLE MEMBER By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner Name: Title: AMERISOURCE HERITAGE CORPORATION By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKINDENTURE X.X. XXXXXX TRUST COMPANY, as Trustee ByNATIONAL ASSOCIATION, AS TRUSTEE BY: /s/ Xxxxx X. Xxxxxx ---------------------------------------- NameNAME: Xxxxx X. Xxxxxx TitleTITLE: Assistant Vice President EXHIBIT A (INDENTURE [Face of Note) -------------------------------------------------------------------------------- CUSIP ] CUSIP/CINS __________ 5 5/8% Senior Notes due 2012 No. ___ $____________ AmerisourceBergen Corporation promises to pay to or registered assigns, the principal sum of Dollars on September 15, 2012. Interest Payment Dates: March 15 and September 15 Record Dates: March 1 and September 1 Dated: AMERISOURCEBERGEN CORPORATION BY: NAME: TITLE: This is one of the Notes referred to in the within-mentioned Indenture: X.X. XXXXXX TRUST COMPANY, NATIONAL ASSOCIATION as Trustee By: Authorized Signatory 5 5/8% Senior Notes due 2012 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein shall have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of in this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29March 17, 2005 L-3 COMMUNICATIONS CORPORATION By2004 ISSUER: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS TECHNICAL OLYMPIC USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx XXXXX X. Xxxxxxx ---------------------------------------- XXXXXX --------------------------------------- Name: Xxxxxxxxxxx Xxxxx X. XxXxxx Title: Vice President -- Finance and Administration and Chief Financial Officer SUBSIDIARY GUARANTORS: DP-NH Investments, LP DP-NH Management, LLC Xxxxx Homes Delaware, Inc. Newmark Homes, XX Xxxxxxx Homes Purchasing, LP Pacific United, LP Silver Oak Trails, LP Silverlake Interests, LC TOI, LLC TOUSA Financing, Inc. By: /s/ XXXXX X. XXXXXX ------------------------------------- Name: Xxxxx X. XxXxxx Title: Vice President - Finance and Administration TOUSA Associates Services Company By: /s/ XXXXXXXX X. XXXXXXXX -------------------------------------- Name: Xxxxxxxx X. Xxxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner Newmark Homes Business Trust By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- XXXXX XXXXXX -------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxx Xxxxxx Title: Authorized Person THE BANK OF NEW YORKManaging Trustee Alliance Insurance and Information Services, as Trustee LLC Xxxxx Homes Residential Construction, LLC Xxxxx/Xxxxx, LLC XxXxx Landing, LLC Newmark Homes, LLC Preferred Builders Realty, Inc. Preferred Home Mortgage Company Prestige Abstract & Title, LLC Professional Advantage Title, Ltd. The Century Title Agency, Inc. TOUSA Delaware, Inc. TOUSA Homes, Inc. TOUSA Ventures, LLC Universal Land Title, Inc. Universal Land Title Investment #1, LLC Universal Land Title Investment #2, LLC Universal Land Title Investment #3, LLC Universal Land Title Investment #4, LLC Universal Land Title of South Florida, Ltd. Universal Land Title of Texas, Inc. Universal Land Title of The Palm Beaches, Ltd. By: /s/ Xxxxx XXXXX X. Xxxxxx ---------------------------------------- XXXXXX ----------------------------------- Name: Xxxxx X. Xxxxxx XxXxxx Title: Vice President and Treasurer TRUSTEE: XXXXX FARGO BANK, NATIONAL ASSOCIATION, AS TRUSTEE By: /s/ XXXXXXX X. XXXXXXX ------------------------------------ Name: Xxxxxxx X. Xxxxxxx Title: Assistant Vice President EXHIBIT A (Face of NoteFACE OF NOTE) -------------------------------------------------------------------------------- 7 1/2% SENIOR SUBORDINATED NOTE DUE 2011 CUSIP ________

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table Contents and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 2917, 2005 L-3 COMMUNICATIONS CORPORATION 2015 TERRAFORM POWER OPERATING, LLC By: TERRAFORM POWER, LLC, Its Sole Member and Sole Manager By /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxxxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Executive Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor Chief Financial Officer TERRAFORM POWER, LLC By /s/ Xxxxxxxxx Xxxxxxxxx Name: Xxxxxxxxx Xxxxxxxxx Title: Executive Vice President and Chief Financial Officer TERRAFORM POWER, LLC By /s/ Xxxxxxxxx Xxxxxxxxx Name: Xxxxxxxxx Xxxxxxxxx Title: Executive Vice President and Chief Financial Officer SUNEDISON CANADA YIELDCO, LLC SUNEDISON YIELDCO CHILE HOLDCO, LLC SUNEDISON YIELDCO ACQ1, LLC SUNEDISON YIELDCO DG–VIII HOLDINGS, LLC SUNEDISON YIELDCO UK HOLDCO 3, LLC SUNEDISON YIELDCO UK HOLDCO 4, LLC SUNEDISON YIELDCO UK HOLDCO 2, LLC SUNEDISON YIELDCO DG HOLDINGS, LLC SUNEDISON YIELDCO XXXXXX HOLDCO, LLC SUNEDISON YIELDCO REGULUS HOLDINGS, LLC SUNEDISON YIELDCO ACQ2, LLC SUNEDISON YIELDCO ACQ3, LLC SUNEDISON YIELDCO ACQ9, LLC SUNEDISON YIELDCO ACQ4, LLC SUNEDISON YIELDCO ACQ5, LLC SUNEDISON YIELDCO, ENFINITY HOLDINGS, LLC SUNEDISON YIELDCO, DGS HOLDINGS, LLC SUNEDISON YIELDCO ACQ7, LLC SUNEDISON YIELDCO ACQ8, LLC SUNEDISON YIELDCO ACQ6, LLC TERRAFORM POWER IVS I HOLDINGS, LLC TERRAFORM LPT ACQ HOLDINGS, LLC TERRAFORM SOLAR HOLDINGS, LLC TERRAFORM CD ACQ HOLDINGS, LLC TERRAFORM UK1 ACQ HOLDINGS, LLC TERRAFORM REC ACQ HOLDINGS, LLC TERRAFORM SOLAR XVII ACQ HOLDINGS, LLC TERRAFORM FIRST WIND ACQ, LLC By: L-3 COMMUNICATIONS AIS GP CORPORATIONTERRAFORM POWER OPERATING, as General Partner LLC, its Sole Member and Sole Manager By: TERRAFORM POWER, LLC, its Sole Member and Sole Manager By /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxxxxxx Xxxxxxxxx Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxxxxxx Xxxxxxxxx Title: Authorized Person THE Executive Vice President and Chief Financial Officer U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- / s/ Xxxxxxx Xxxxxxxx Name: Xxxxx X. Xxxxxx Xxxxxxx Xxxxxxxx Title: Assistant Vice President EXHIBIT A (A-1 [Face of Note) -------------------------------------------------------------------------------- CUSIP ] CUSIP/CINS ____________ 6.125% Senior Notes due 2025 No. ___ $___________ TERRAFORM POWER OPERATING, LLC promises to pay to or registered assigns, the principal sum of __________________________________________________________ DOLLARS on June 15, 2025. Interest Payment Dates: June 15 and December 15 Record Dates: June 1 and December 1 Dated: _______________ TERRAFORM POWER OPERATING LLC By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: U.S. Bank National Association, as Trustee By: Authorized Signatory A1-1 [Back of Note] 6.125% Senior Notes due 2025 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29May 11, 2005 L-3 COMMUNICATIONS CORPORATION 2017 ISSUERS: XXXX LAS VEGAS, LLC, a Nevada limited liability company By: Xxxx Las Vegas Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxx America, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member By: /s/ Xxxxx X. Xxxxxxxx Name: Xxxxx X. Xxxxxxxx Title: Chief Financial Officer and Treasurer WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation By: /s/ Xxxxx X. Xxxxxxxx Name: Xxxxx X. Xxxxxxxx Title: Chief Financial Officer and Treasurer Signature Page to Indenture GUARANTORS: XXXX SHOW PERFORMERS, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Las Vegas Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxx America, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member By: /s/ Xxxxx X. Xxxxxxxx Name: Xxxxx X. Xxxxxxxx Title: Chief Financial Officer and Treasurer WORLD TRAVEL, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Las Vegas Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxx America, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member By: /s/ Xxxxx X. Xxxxxxxx Name: Xxxxx X. Xxxxxxxx Title: Chief Financial Officer and Treasurer XXXX SUNRISE, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Las Vegas Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxx America, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member By: /s/ Xxxxx X. Xxxxxxxx Name: Xxxxx X. Xxxxxxxx Title: Chief Financial Officer and Treasurer Signature Page to Indenture KEVYN, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Las Vegas Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxx America, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member By: /s/ Xxxxx X. Xxxxxxxx Name: Xxxxx X. Xxxxxxxx Title: Chief Financial Officer and Treasurer WLV EVENTS, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Las Vegas Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxx America, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member By: /s/ Xxxxx X. Xxxxxxxx Name: Xxxxx X. Xxxxxxxx Title: Chief Financial Officer and Treasurer U.S. BANK NATIONAL ASSOCIATION, not in its individual capacity but solely as Trustee By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxxxxxxx Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxxxxxxx Title: Vice President Signature Page to Indenture EXHIBIT A-1 [Face of Note] CUSIP/ISIN 983130 AX3/US 983130AX35 5.25% Senior Notes due 2027 No. ___ $____________ XXXX LAS VEGAS, LLC XXXX LAS VEGAS CAPITAL CORP. promise to pay to ______________________ or registered assigns, the principal sum of DOLLARS on May 15, 2027. Interest Payment Dates: May 15 and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor November 15 Record Dates: May 1 and November 1 Dated: May 11, 2017 XXXX LAS VEGAS, LLC, a Nevada limited liability company By: L-3 COMMUNICATIONS AIS GP CORPORATIONXxxx Las Vegas Holdings, as General Partner LLC, a Nevada limited liability company, its sole member By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxx America, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member By: ______________________________ Name: Xxxxxxxxxxx Xxxxx X. Xxxxxxxx Title: Chief Financial Officer and Treasurer By: ______________________________ Name: Xxx Xxxxxxx Title: Authorized Person THE Executive Vice President, General Counsel and Secretary WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation By:_________________________________ Name: Xxxxx X. Xxxxxxxx Title: Chief Financial Officer and Treasurer By:_________________________________ Name: Xxx Xxxxxxx Title: Secretary This is one of the Notes referred to in the within-mentioned Indenture: U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note] 5.25% Senior Notes due 2027 [Insert the Private Placement Legend, if applicable, pursuant to Section 2.06(f)(1) -------------------------------------------------------------------------------- CUSIP _____of the Indenture] [Insert the Global Notes Legend, if applicable, pursuant to Section 2.06(f)(2) of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table Contents and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pagespage] 72 SIGNATURES Dated as of July 29October 16, 2005 L-3 COMMUNICATIONS CORPORATION 2019 TERRAFORM POWER OPERATING, LLC By: TERRAFORM POWER, LLC Its Sole Member and Sole Manager By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxx Title: GUARANTORS: APCOMGeneral Counsel & Secretary TERRAFORM POWER, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxx Name: Xxxxxxxxxxx X. Xxxxxxx Xxxx Title: General Counsel & Secretary [Signature page to Indenture] XXXXXX ISLAND HOLDINGS, LLC CSSW COHOCTON HOLDINGS, LLC CSSW STEEL WINDS HOLDINGS, LLC FIRST WIND BLUE SKY EAST HOLDINGS, LLC FIRST WIND KAHUKU HOLDINGS, LLC FIRST WIND NORTHEAST COMPANY, LLC FIRST WIND OPERATING COMPANY, LLC FW MASS PV PORTFOLIO, LLC FWPV CAPITAL, LLC FWPV HOLDINGS, LLC HAWAIIAN ISLAND HOLDINGS, LLC HURON HOLDINGS, LLC KAHUKU HOLDINGS, LLC KAHUKU WIND POWER, LLC MA OPERATING HOLDINGS, LLC MAINE WIND PARTNERS II, LLC NORTHEAST WIND CAPITAL HOLDINGS, LLC NORTHEAST WIND CAPITAL II, LLC NORTHEAST WIND PARTNERS II, LLC SHEFFIELD HOLDINGS, LLC SHEFFIELD WIND HOLDINGS, LLC SPS XXXXXX ISLAND, LLC STETSON WIND HOLDINGS COMPANY, LLC SUNEDISON CANADA YIELDCO MASTER HOLDCO, LLC SUNEDISON CANADA YIELDCO, LLC SUNEDISON YIELDCO ACQ1 MASTER HOLDCO, LLC SUNEDISON YIELDCO ACQ2 MASTER HOLDCO, LLC SUNEDISON YIELDCO ACQ3 MASTER HOLDCO, LLC SUNEDISON YIELDCO ACQ4 MASTER HOLDCO, LLC SUNEDISON YIELDCO ACQ6 MASTER HOLDCO, LLC SUNEDISON YIELDCO ACQ7 MASTER HOLDCO, LLC SUNEDISON YIELDCO ACQ7, LLC SUNEDISON YIELDCO ACQ8 MASTER HOLDCO, LLC SUNEDISON YIELDCO ACQ9 MASTER HOLDCO, LLC SUNEDISON YIELDCO ACQ9, LLC SUNEDISON YIELDCO ACQ10, LLC SUNEDISON YIELDCO CHILE MASTER HOLDCO, LLC SUNEDISON YIELDCO DG MASTER HOLDCO, LLC SUNEDISON YIELDCO DGS MASTER HOLDCO, LLC SUNEDISON YIELDCO DG-VIII MASTER HOLDCO, LLC SUNEDISON YIELDCO ENFINITY MASTER HOLDCO, LLC SUNEDISON YIELDCO XXXXXX MASTER HOLDCO, LLC SUNEDISON YIELDCO REGULUS HOLDINGS, LLC SUNEDISON YIELDCO REGULUS MASTER HOLDCO, LLC SUNEDISON YIELDCO UK HOLDCO 3, LLC SUNEDISON YIELDCO UK HOLDCO 3 MASTER HOLDCO, LLC [Signature page to Indenture] SUNEDISON YIELDCO UK HOLDCO 4 MASTER HOLDCO, LLC TERRAFORM CD ACQ MASTER HOLDCO, LLC TERRAFORM FIRST WIND ACQ, LLC TERRAFORM FIRST WIND ACQ MASTER HOLDCO, LLC TERRAFORM LPT ACQ MASTER HOLDCO, LLC TERRAFORM POWER IVS I HOLDINGS, LLC TERRAFORM POWER IVS I HOLDINGS II, LLC TERRAFORM POWER IVS I MASTER HOLDCO, LLC TERRAFORM PRIVATE HOLDINGS II, LLC TERRAFORM REC ACQ MASTER HOLDCO, LLC TERRAFORM SOLAR MASTER HOLDCO, LLC TERRAFORM SOLAR XVII ACQ MASTER HOLDCO, LLC TERRAFORM THOR ACQ HOLDINGS, LLC TERRAFORM THOR ACQ MASTER HOLDCO, LLC By: /s/ Xxxxxxx Xxxx Name: Xxxxxxx Xxxx Title: Authorized Representative [Signature page to Indenture] ERIE WIND, LLC NIAGARA WIND POWER, LLC VERMONT WIND, LLC By: /s/ Xxxxxxx Xxxxxx Name: Xxxxxxx Xxxxxx Title: Authorized Representative [Signature page to Indenture] U.S. Bank National Association as Trustee By: /s/ Xxxxxxx Xxxxxxxx Name: Xxxxxxx Xxxxxxxx Title: Vice President [Signature page to Indenture] EXHIBIT A1 [Face of Note] CUSIP/CINS ___________ 4.75% Senior Notes due 2030 No. ______ $_____ TERRAFORM POWER OPERATING, LLC promises to pay to __________ or registered assigns, the principal sum of ______________________________________ DOLLARS on January 15, 2030. Interest Payment Dates: January 15 and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor July 15 Record Dates: January 1 and July 1 Dated: ________________ TERRAFORM POWER OPERATING, LLC By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKThis is one of the Notes referred to in the within-mentioned Indenture: U.S. Bank National Association, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory A1-1 [Back of Note) -------------------------------------------------------------------------------- CUSIP _____] 4.75% Senior Notes due 2030 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29the date first written above. ISSUERS: TARGA RESOURCES PARTNERS LP By: Targa Resources GP LLC, 2005 L-3 COMMUNICATIONS Its general partner By: /s/ Xxxxxxx X. XxXxxxxxx Name: Xxxxxxx X. XxXxxxxxx Title: President — Finance and Administration TARGA RESOURCES PARTNERS FINANCE CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ XxXxxxxxx Name: Xxxxxxx X. Xxxxxxxxx XxXxxxxxx Title: President — Finance and Administration [Indenture] GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE MIDSTREAM BARGE COMPANY LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT TARGA CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILETARGA CO-VISION, INC. L-3 COMMUNICATIONS SECURITY GENERATION LLC TARGA DOWNSTREAM LLC TARGA GAS MARKETING LLC TARGA GAS PIPELINE LLC TARGA GAS PROCESSING LLC TARGA INTRASTATE PIPELINE LLC TARGA LIQUIDS MARKETING AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION TRADE LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS TARGA LOUISIANA INTRASTATE LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM TARGA MIDSTREAM SERVICES LLC WOLF COACH, INC., as Guarantors TARGA MLP CAPITAL LLC TARGA NGL PIPELINE COMPANY LLC TARGA RESOURCES OPERATING GP LLC TARGA RESOURCES OPERATING LLC TARGA SOUND TERMINAL LLC TARGA TERMINALS LLC TARGA TRANSPORT LLC By: /s/ Xxxxxxxxxxx Xxxxxxx X. XxXxxxxxx Name: Xxxxxxx X. XxXxxxxxx Title: President — Finance and Administration SOUND PIPELINE COMPANY, LLC By: MANAGER: /s/ Xxxx X. Xxxxx Xxxx X. Xxxxx By: MEMBER: Targa Terminals LLC By: /s/ Xxxxxxx X. XxXxxxxxx Name: Xxxxxxx X. XxXxxxxxx Title: President — Finance and Administration [Indenture] TRUSTEE: U.S. BANK NATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx Title: Vice President EXHIBIT A [Face of Note] CUSIP 87612B AJ11 6 3/8% Senior Notes due 2022 No. $ TARGA RESOURCES PARTNERS LP and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. TARGA RESOURCES PARTNERS FINANCE CORPORATION promise to pay to , or registered assigns, the principal sum of DOLLARS [or such other amount as Guarantor may be indicated on the attached Schedule of Exchanges of Interests in the Global Note],2 on August 1, 2022. Interest Payment Dates: February 1 and August 1 Record Dates: January 15 and July 15 Dated: , 20 TARGA RESOURCES PARTNERS LP By: L-3 COMMUNICATIONS AIS Targa Resources GP CORPORATIONLLC, as Its General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee TARGA RESOURCES PARTNERS FINANCE CORPORATION By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____:

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 135 SIGNATURES Dated as of July 29February 17, 2005 L-3 COMMUNICATIONS CORPORATION By2011 REVEL: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHREVEL AC, INC., as Guarantors a Delaware corporation /s/ Xxxx Xxxxxxxxxx Name: Xxxx Xxxxxxxxxx Title: Chief Financial Officer, Treasurer and Secretary GUARANTORS: REVEL AC, LLC, a Delaware limited liability company By: Revel AC, Inc., a Delaware corporation, its sole member /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxx Xxxxxxxxxx Name: Xxxxxxxxxxx X. Xxxxxxx Xxxx Xxxxxxxxxx Title: Vice President Chief Financial Officer, Treasurer and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor REVEL ATLANTIC CITY, LLC, a New Jersey limited liability company By: L-3 COMMUNICATIONS AIS GP CORPORATIONRevel AC, as General Partner LLC, a New Jersey limited liability company, its sole member By: Revel AC, Inc., a Delaware corporation, its sole member /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxx Xxxxxxxxxx Name: Xxxxxxxxxxx X. Xxxxxxx Xxxx Xxxxxxxxxx Title: Authorized Person THE Chief Financial Officer, Treasurer and Secretary REVEL ENTERTAINMENT GROUP, LLC, a New Jersey limited liability company By: Revel AC, LLC, a New Jersey limited liability company, its sole member By: Revel AC, Inc., a Delaware corporation, its sole member /s/ Xxxx Xxxxxxxxxx Name: Xxxx Xxxxxxxxxx Title: Chief Financial Officer, Treasurer and Secretary NB ACQUISITION, LLC, a New Jersey limited liability company By: Revel Entertainment Group, LLC, a New Jersey limited liability company, its sole member By: Revel AC, LLC, a Delaware limited liability company, its sole member By: Revel AC, Inc., a Delaware corporation, its sole member /s/ Xxxx Xxxxxxxxxx Name: Xxxx Xxxxxxxxxx Title: Chief Financial Officer, Treasurer and Secretary U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, not in its individual capacity but solely as Trustee By: /s/ Xxxxx Xxxxxx X. Xxxxxx ---------------------------------------- Xxxxxxx Name: Xxxxx Xxxxxx X. Xxxxxx Xxxxxxx, CCTS Title: Assistant Vice President EXHIBIT A (A-1 [Face of Note) -------------------------------------------------------------------------------- CUSIP _____] CUSIP: ISIN: 12% Second Lien Notes due 2018 No. $ REVEL AC, INC. promise to pay to or registered assigns, the principal sum of DOLLARS [(as such amount may be increased or decreased as set forth in the “Schedule of Exchanges of Interests in the Global Note” attached hereto)] on March 15, 2018. Interest Payment Dates: March 15 and September 15 Record Dates: March 1 and September 1

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of in this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29November 2, 2005 L-3 COMMUNICATIONS CORPORATION 2010 COMPANY: Hanger Orthopedic Group, Inc. By: /s/ Xxxxxxx Xxxxxx X. Xxxxxxxxx ------------------------------------ XxXxxxx Name: Xxxxxxx Xxxxxx X. Xxxxxxxxx XxXxxxx Title: Executive Vice President, Chief Financial Officer and Secretary GUARANTORS: APCOMHanger Prosthetics & Orthotics, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors Inc. By: /s/ Xxxxxxxxxxx Xxxxxx X. Xxxxxxx ---------------------------------------- XxXxxxx Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx XxXxxxx Title: Executive Vice President President, Chief Financial Officer and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATIONABi Orthotic/Prosthetic Laboratories, as General Partner Ltd. Advanced Prosthetics of America, Inc. The Brace Shop Prosthetic Orthotic Centers, Inc. Colorado Professional Medical, Inc. Creative Orthotics & Prosthetics, Inc. DDOPP Holding LLC XxXxxxx’x Dynamic Orthotics and Prosthetics Partnership Ltd. Dosteon Solutions, LLC Elite Care, Incorporated Xxxxxx Xxxxxx & Son Orthotics & Prosthetics, Inc. Hanger Prosthetics & Orthotics East, Inc. Hanger Prosthetics & Orthotics West, Inc. Hattingh Holdings, Inc. Inline Orthotic and Prosthetic Systems Innovative Neurotronics, Inc. Linkia, LLC Nebraska Orthotic & Prosthetic Services, Inc. OPNET, Inc. Orthopedic Rehabilitation Products, Ltd. Southern Prosthetic Supply, Inc. Speed Acquisition Vehicle, Inc. Wasatch Orthotics & Pedorthics, LLC By: /s/ Xxxxxxxxxxx Xxxxxx X. Xxxxxxx ---------------------------------------- XxXxxxx Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx XxXxxxx Title: Authorized Person THE BANK OF NEW YORKTreasurer and Secretary SIGNATURE PAGE TO INDENTURE Wilmington Trust Company, as Trustee By: /s/ Xxxxxxxx X. Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxxxxx X. Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- 71/8% Senior Notes due 2018 CUSIP _____No. $ HANGER ORTHOPEDIC GROUP, INC. promises to pay to Cede & Co. or registered assigns, the principal sum of Dollars ($ ) on November 15, 2018. Interest Payment Dates: May 15 and November 15, commencing May 15, 2011. Record Dates: May 1 and November 1. Dated:

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29December 14, 2005 L-3 COMMUNICATIONS CORPORATION 1998 AEI RESOURCES, INC. By: /s/ Xxxx X. Xxxx ________________________ Name: Xxxx X. Xxxx Title: Confirmed and agreed to as Guarantors: 17 WEST MINING, INC., ACECO, INC., XXXXXXXXX MINING, INC., AEI COAL SALES COMPANY, INC., AEI HOLDING COMPANY, INC. AEI RESOURCES HOLDING, INC., AMERICOAL DEVELOPMENT COMPANY, APPALACHIAN REALTY COMPANY, AYRSHIRE LAND COMPANY, BELLAIRE TRUCKING COMPANY, BLUEGRASS COAL DEVELOPMENT COMPANY, BOWIE RESOURCES LIMITED CC COAL COMPANY, COAL VENTURES HOLDING COMPANY, INC., EAST KENTUCKY ENERGY CORPORATION, EMPLOYEE BENEFITS MANAGEMENT, INC., ENCOAL CORPORATION, ENERZ CORPORATION, EVERGREEN MINING COMPANY, FAIRVIEW LAND COMPANY, FRANKLIN COAL SALES COMPANY, GRASSY COVE COAL MINING COMPANY, HERITAGE MINING COMPANY, HIGHLAND COAL, INC., XXXXX-XXXXX CO., INC., XXXXXX COAL COMPANY, XXXXXX RESOURCES, INC., XXXXXX RESOURCES MANAGEMENT, INC., MEADOWLARK, INC., MEGA MINERALS, INC., MIDWEST COAL SALES COMPANY, MID-VOL LEASING, INC. MINING TECHNOLOGIES, INC., MOUNTAIN-CLAY, INCORPORATED (d/b/a Mountain Clay, Inc.), PHOENIX LAND COMPANY, PREMIUM PROCESSING, INC., PREMIUM COAL DEVELOPMENT COMPANY, PRO-LAND, INC. (d/b/a Kem Coal Company) R. & F. COAL COMPANY, RIVER COAL COMPANY, INC., ROARING CREEK COAL COMPANY, SHIPYARD RIVER COAL TERMINAL COMPANY, STRAIGHT CREEK COAL RESOURCES COMPANY, TENNESSEE MINING, INC., TURRIS COAL COMPANY, WYOMING COAL TECHNOLOGY, INC., XXXXXXX COAL HOLDING COMPANY, XXXXXXX ENVIRONMENTAL SERVICES COMPANY, ZENERGY, INC., each as Guarantor By: /s/ Xxxx X. Xxxx ________________________________ Name: Xxxx X. Xxxx Title: BEECH COAL COMPANY, CANNELTON, INC., CANNELTON INDUSTRIES, INC., CANNELTON LAND COMPANY, CANNELTON SALES COMPANY, XXXX COAL & DOCK COMPANY, XXXXXX HOLDINGS, INC., KANAWHA CORPORATION, KINDILL HOLDING, INC., KINDILL MINING, INC., MIDWEST COAL COMPANY , MOUNTAINEER COAL DEVELOPMENT COMPANY, MOUNTAIN COALS CORPORATION, OLD BEN COAL COMPANY, WEST VIRGINIA-INDIANA COAL HOLDING COMPANY, INC., each as Guarantor By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ _______________________________ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOMBENTLEY COAL COMPANY, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSSKYLINE COAL COMPANY, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICESKENTUCKY PRINCE MINING COMPANY, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. each as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATIONGRASSY COVE COAL MINING COMPANY, ROARING CREEK COAL COMPANY, each as General Partner of each of the entities listed above By: /s/ Xxxxxxxxxxx Xxxx X. Xxxxxxx ---------------------------------------- Xxxx _________________________________ Name: Xxxxxxxxxxx Xxxx X. Xxxxxxx Xxxx Title: Authorized Person THE NUCOAL, LLC, as Guarantor By: AMERICOAL DEVELOPMENT COMPANY ENCOAL CORPORATION each as Member By: /s/ Xxxx X. Xxxx _________________________________ Name: Xxxx X. Xxxx Title: STATE STREET BANK OF NEW YORKAND TRUST COMPANY, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- _________________________________ Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A A-1 (Face of NoteFACE OF NOTE) -------------------------------------------------------------------------------- CUSIP _____===============================================================================

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29August 5, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM2008 WCI COMMUNITIES, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSBY: /s/ Name: Title: BAY COLONY-GATEWAY, INC. XXXXXXXX BAY COLONY OF NAPLES, INC. HYGIENETICS ENVIRONMENTAL BAY COLONY REALTY ASSOCIATES, INC. COMMUNITIES AMENITIES, INC. COMMUNITIES FINANCE COMPANY, LLC COMMUNITIES HOME BUILDERS, INC. COMMUNITY SPECIALIZED SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSCORAL RIDGE COMMUNITIES, INC. L-3 COMMUNICATIONS AEROMETCORAL RIDGE PROPERTIES, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYCORAL RIDGE REALTY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSCORAL RIDGE REALTY SALES, INC. L-3 By: /s/ Name: Title: FIRST FIDELITY TITLE, INC. FLORIDA DESIGN COMMUNITIES, INC. FLORIDA LIFESTYLE MANAGEMENT COMPANY FLORIDA NATIONAL PROPERTIES, INC. GATEWAY COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE SERVICES, INC. HOPEWELL CROSSING HOME & LAND COMPANY, LLC By: /s/ Name: Title: LAKE GROVE HOME & LAND COMPANY LLC By: /s/ Name: Title: POPLAR TREE LLC RENAISSANCE AT BEACON HILL, LLC RENAISSANCE AT GEORGETOWN PIKE, LLC RENAISSANCE AT OAK CREEK CLUB, LLC RENAISSANCE AT OCCOQUAN WALK, LLC RENAISSANCE AT RIVER CREEK TOWNS, LLC By: /s/ Name: Title: RESORT AT SINGER ISLAND PROPERTIES, INC. By: /s/ Name: Title: SUN CITY CENTER GOLF PROPERTIES, INC. SUN CITY CENTER REALTY, INC. THE COLONY AT PELICAN LANDING GOLF CLUB, INC. JYC HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIMARBELLA AT PELICAN BAY, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESPELICAN LANDING GOLF RESORT VENTURES, INC. L-3 COMMUNICATIONS ESSCOSARASOTA TOWER, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICESTARPON COVE YACHT & RACQUET CLUB, INC. L-3 COMMUNICATIONS ILEX SYSTEMSTIBURON GOLF VENTURES, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESWCI ARCHITECTURE & LAND PLANNING, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONWATERMARK REALTY REFERRAL, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSWCI COMMUNITIES PROPERTY MANAGEMENT, INC. L-3 COMMUNICATIONS SONOMA EOWCI GOLF GROUP, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRIWCI REALTY, INC. PAC ORD INC. POWER PARAGONGATEWAY COMMUNITIES, INC. SHIP ANALYTICSGATEWAY REALTY SALES, INC. SHIP ANALYTICS INTERNATIONALHERON BAY, INC. SHIP ANALYTICS HERON BAY GOLF COURSE PROPERTIES, INC. PELICAN BAY PROPERTIES, INC. PELICAN LANDING PROPERTIES, INC. PELICAN XXXXX PROPERTIES, INC. TARPON COVE REALTY, INC. WCI HOMES, INC. PELICAN LANDING COMMUNITIES, INC. WCI AMENITIES, INC. WCI BUSINESS DEVELOPMENT, INC. WCI CAPITAL CORPORATION WCI HOMEBUILDING NORTHEAST, U.S., INC. WCI HOMEBUILDING, INC. WCI MARKETING, INC. WCI MID-ATLANTIC U.S. REGION, INC. WCI NORTHEAST U.S. REGION, LLC WCI TOWERS, INC. By: /s/ Name: Title: AMERICAN STOCK TRANSFER & TRUST COMPANY, LLC, as Trustee BY: NAME: TITLE: MHI-RUGBY ROAD, L.L.C. CENTRO ARLINGTON, LLC CENTRO COLOMBIA, LLC WCI HOMES NORTHEAST, INC. WCI HUNTER MILL, LLC WCI IRELAND INN CORP. WCI OCALA 623, INC. WCI REALTY CONNECTICUT, INC. WCI REALTY NEW JERSEY, INC. WCI REALTY NEW YORK, INC. WCI TITLE, INC. WCI TOWERS MID-ATLANTIC USA, INC. SPD ELECTRICAL SYSTEMSBY: NAME: TITLE: EXHIBIT A [FACE OF NOTE] CUSIP No. ISIN No. 17.5% Senior Secured Notes due 2012 No. _____ $ WCI COMMUNITIES, INC. SPD SWITCHGEAR promises to pay to or registered assigns, the principal sum of Dollars on August 5, 2013. Interest Payment Dates: August 5 and February 5 Record Dates: July 20 and January 20 WCI COMMUNITIES, INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor ByThis is one of the Notes referred to in the within-mentioned Indenture: L-3 COMMUNICATIONS AIS GP CORPORATIONDated: , as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKAMERICAN STOCK TRANSFER & TRUST COMPANY, LLC, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____Authorized Officer [BACK OF NOTE]

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 106 SIGNATURES Dated as of July 29March 23, 2005 L-3 COMMUNICATIONS CORPORATION 2004 CALPINE GENERATING COMPANY, LLC By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ ZAMIR RAUF ----------------------------------- Name: Xxxxxxx X. Xxxxxxxxx Zamir Rauf Title: GUARANTORS: APCOM, INCVice Pxxxxxxxx CALGEN FINANCE CORP. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- ZAMIR RAUF ----------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Zamir Rauf Title: Vice Pxxxxxxxx 107 THE GUARANTORS: CALGEN EXPANSION COMPANY, LLC CPN FREESTONE, LLC CALPINE FREESTONE, LLC CALPINE FREESTONE ENERGY GP, LLC CALPINE CHANNEL ENERGY CENTER LP, LLC CALPINE CHANNEL ENERGY CENTER GP, LLC CHANNEL POWER GP, LLC CALGEN EQUIPMENT FINANCE HOLDINGS, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY ONE, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY THREE LLC CALGEN EQUIPMENT FINANCE COMPANY, LLC NUECES BAY ENERGY LLC CALPINE NORTHBROOK SOUTHCOAST INVESTORS, LLC CALPINE CORPUS CHRISTI ENERGY GP, LLC ZION ENERGY LLC LOS MEDANOS ENERGY CENTER, LLC MORGAN ENERGY CENTER, LLC CARVILLE ENERXX XXX DECATUR ENERGY CENTXX, XXX CALPINE ONETA POWER I, LLC CALPINE ONETA POWER XX, XLC CALPINE BAYTOWN ENEXXX XENTER LP, LLC CALPINE BAYTOWN ENERGY CENTER GP, LLC BAYTOWN POWER GP, LLC COLUMBIA ENERGY LLC DELTA ENERGY CENTER, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY TWO, LLC PASTORIA ENERGY FACILITY L.L.C. CALPINE PASTORIA HOLDINGS, LLC Executing this Third Priority Indenture on behalf of and so as to bind each of the limited liability companies named above under the caption "The Guarantors" By: /s/ ZAMIR RAUF ---------------------------------------------- Name: Zamir Rauf Title: Vice President 108 THE GUARANTORS: FREESTONE POWER GENERATION LP CALPINE FREESTONE ENERGY, LP CALPINE POWER EQUIPMENT LP CHANNEL POWER, LP CHANNEL ENERGY CENTER, LP CALPINE CORPUS CHRISTI ENERGY, LP CORPUS CHRISTI COGENERATION LP CALPINE ONETA POWER, L.P. BAYTOWN ENERXX XXNTER, LP BAYTOWN POWER, LP Executing this Third Priority Indenture on behalf of and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. so as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner to bind each of the limited partnerships named above under the caption "The Guarantors" By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- ZAMIR RAUF ------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Zamir Rauf Title: Authorized Person THE BANK OF NEW YORK, as Trustee Vice Prexxxxxx 109 WILMINGTON TRUST FSB By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- JAMES J. MCGINLEY ------------------------------------- Name: Xxxxx X. Xxxxxx James J. McGinley Title: Assistant Vice President EXHIBIT Vxxx Xxxxxxxxx 110 SCHEDULE A (Face SCHEDULE A-1 PERMITTED PRIOR LIENS EXISTING ON THE CLOSING DATE See attached. SCHEDULE A-1 XXXXXXX X-0 [Xxxx xx Xxxx] CUSIP [13135B AC 0 -- 144A] [13135B AG 1 -- Exchange] ISIN [US13135BAC00 -- 144A] [US13135BAG14 -- Exchange] Third Priority Secured Floating Rate Note due 2011 No. $ ----- ---------------- CALPINE GENERATING COMPANY, LLC CALGEN FINANCE CORP. promises to pay to ----------------------------- or registered assigns, the principal sum of Note) -------------------------------------------------------------------------------- CUSIP _____----------------------------------------------------------- Dollars on April 1, 2011.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29August 5, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM2008 WCI COMMUNITIES, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSBY: /s/ Name: Title: BAY COLONY-GATEWAY, INC. XXXXXXXX BAY COLONY OF NAPLES, INC. HYGIENETICS ENVIRONMENTAL BAY COLONY REALTY ASSOCIATES, INC. COMMUNITIES AMENITIES, INC. COMMUNITIES FINANCE COMPANY, LLC COMMUNITIES HOME BUILDERS, INC. COMMUNITY SPECIALIZED SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSCORAL RIDGE COMMUNITIES, INC. L-3 COMMUNICATIONS AEROMETCORAL RIDGE PROPERTIES, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYCORAL RIDGE REALTY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSCORAL RIDGE REALTY SALES, INC. L-3 By: /s/ Name: Title: FIRST FIDELITY TITLE, INC. FLORIDA DESIGN COMMUNITIES, INC. FLORIDA LIFESTYLE MANAGEMENT COMPANY FLORIDA NATIONAL PROPERTIES, INC. GATEWAY COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE SERVICES, INC. HOPEWELL CROSSING HOME & LAND COMPANY, LLC By: /s/ Name: Title: LAKE GROVE HOME & LAND COMPANY LLC By: /s/ Name: Title: POPLAR TREE LLC RENAISSANCE AT BEACON HILL, LLC RENAISSANCE AT GEORGETOWN PIKE, LLC RENAISSANCE AT OAK CREEK CLUB, LLC RENAISSANCE AT OCCOQUAN WALK, LLC RENAISSANCE AT RIVER CREEK TOWNS, LLC By: /s/ Name: Title: RESORT AT SINGER ISLAND PROPERTIES, INC. By: /s/ Name: Title: SUN CITY CENTER GOLF PROPERTIES, INC. SUN CITY CENTER REALTY, INC. THE COLONY AT PELICAN LANDING GOLF CLUB, INC. JYC HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIMARBELLA AT PELICAN BAY, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESPELICAN LANDING GOLF RESORT VENTURES, INC. L-3 COMMUNICATIONS ESSCOSARASOTA TOWER, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICESTARPON COVE YACHT & RACQUET CLUB, INC. L-3 COMMUNICATIONS ILEX SYSTEMSTIBURON GOLF VENTURES, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESWCI ARCHITECTURE & LAND PLANNING, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONWATERMARK REALTY REFERRAL, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSWCI COMMUNITIES PROPERTY MANAGEMENT, INC. L-3 COMMUNICATIONS SONOMA EOWCI GOLF GROUP, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRIWCI REALTY, INC. PAC ORD INC. POWER PARAGONGATEWAY COMMUNITIES, INC. SHIP ANALYTICSGATEWAY REALTY SALES, INC. SHIP ANALYTICS INTERNATIONALHERON BAY, INC. SHIP ANALYTICS HERON BAY GOLF COURSE PROPERTIES, INC. PELICAN BAY PROPERTIES, INC. PELICAN LANDING PROPERTIES, INC. PELICAN XXXXX PROPERTIES, INC. TARPON COVE REALTY, INC. WCI HOMES, INC. PELICAN LANDING COMMUNITIES, INC. WCI AMENITIES, INC. WCI BUSINESS DEVELOPMENT, INC. WCI CAPITAL CORPORATION WCI HOMEBUILDING NORTHEAST, U.S., INC. WCI HOMEBUILDING, INC. WCI MARKETING, INC. WCI MID-ATLANTIC U.S. REGION, INC. WCI NORTHEAST U.S. REGION, LLC WCI TOWERS, INC. By: /s/ Name: Title: AMERICAN STOCK TRANSFER & TRUST COMPANY, LLC, as Trustee BY: NAME: TITLE: MHI-RUGBY ROAD, L.L.C. CENTRO ARLINGTON, LLC CENTRO COLOMBIA, LLC WCI HOMES NORTHEAST, INC. WCI HUNTER MILL, LLC WCI IRELAND INN CORP. WCI OCALA 623, INC. WCI REALTY CONNECTICUT, INC. WCI REALTY NEW JERSEY, INC. WCI REALTY NEW YORK, INC. WCI TITLE, INC. WCI TOWERS MID-ATLANTIC USA, INC. SPD ELECTRICAL SYSTEMSBY: NAME: TITLE: EXHIBIT A [FACE OF NOTE] CUSIP No. ISIN No. 16% Senior Secured Notes due 2013 No. _____ $ WCI COMMUNITIES, INC. SPD SWITCHGEAR promises to pay to or registered assigns, the principal sum of Dollars on August 5, 2013. Interest Payment Dates: August 5 and February 5 Record Dates: July 20 and January 20 WCI COMMUNITIES, INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor ByThis is one of the Notes referred to in the within-mentioned Indenture: L-3 COMMUNICATIONS AIS GP CORPORATIONDated: , as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKAMERICAN STOCK TRANSFER & TRUST COMPANY, LLC, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Officer [BACK OF NOTE] 16% SENIOR SECURED NOTES DUE 2013 [Insert the Global Note Legend, if applicable pursuant to the provisions of Note) -------------------------------------------------------------------------------- CUSIP _____the Indenture] Capitalized terms used herein shall have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29ARAMARK SERVICES, 2005 L-3 COMMUNICATIONS CORPORATION INC. By: /s/ Xxxxxxx Xxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx Xxxxx X. Xxxxxxxxx Title: GUARANTORSVice President and Treasurer ARAMARK By: APCOM/s/ Xxxxx X. Xxxxxxxxx Name: Xxxxx X. Xxxxxxxxx Title: Vice President and Treasurer ARAMARK AVIATION SERVICES LIMITED PARTNERSHIP By: ARAMARK SMMS LLC, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL its General Partner By: ARAMARK SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors its sole member By: /s/ Xxxxxxxxxxx Xxxxx X. Xxxxxxxxx Name: Xxxxx X. Xxxxxxxxx Title: Vice President and Treasurer ARAMARK MANAGEMENT SERVICES LIMITED PARTNERSHIP By: ARAMARK SMMS LLC, its General Partner By: ARAMARK SERVICES, INC., its sole member By: /s/ Xxxxx X. Xxxxxxxxx Name: Xxxxx X. Xxxxxxxxx Title: Vice President and Treasurer EACH OF THE SUBSIDIARY GUARANTORS LISTED ON SCHEDULE A HERETO By: /s/ Xxxxx X. Xxxxxxxxx Name: Xxxxx X. Xxxxxxxxx Title: Treasurer THE BANK OF NEW YORK MELLON, as Trustee By: /s/ Xxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx Xxxxxxxx X. Xxxxxxx Title: Vice President SCHEDULE A No. Guarantor Jurisdiction 1 L&N Uniform Supply, LLC California 2 Lake Tahoe Cruises, LLC California 3 Old Time Coffee Co. California 4 Paradise Hornblower, LLC California 5 1st & Fresh, LLC Delaware 6 Aramark Asia Management, LLC Delaware 8 Aramark Business & Industry, LLC Delaware 9 Aramark Business Center, LLC Delaware 10 Aramark Business Facilities, LLC Delaware 11 Aramark Campus, LLC Delaware 12 Aramark Cleanroom Services (Puerto Rico), Inc. Delaware 13 Aramark Cleanroom Services, LLC Delaware 14 Aramark Confection, LLC Delaware 15 Aramark Construction and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor Energy Services, LLC Delaware 16 Aramark Construction Services, Inc. Delaware 17 Aramark Correctional Services, LLC Delaware 18 Aramark Educational Group, LLC Delaware 19 Aramark Educational Services, LLC Delaware 20 Aramark Entertainment, LLC Delaware 21 Aramark Facility Services, LLC Delaware 22 Aramark FHC Business Services, LLC Delaware 23 Aramark FHC Campus Services, LLC Delaware 24 Aramark FHC Correctional Services, LLC Delaware 25 Aramark FHC Healthcare Support Services, LLC Delaware 26 Aramark FHC Refreshment Services, LLC Delaware 27 Aramark FHC School Support Services, LLC Delaware 28 Aramark FHC Services, LLC Delaware 29 Aramark FHC Sports and Entertainment Services, LLC Delaware 30 Aramark FHC, LLC Delaware 31 Aramark Food and Support Services Group, Inc. Delaware 32 Aramark Food Service, LLC Delaware 33 Aramark FSM, LLC Delaware 34 Aramark Global, Inc. Delaware 35 Aramark Healthcare Support Services of the Virgin Islands, Inc. Delaware 36 Aramark Healthcare Support Services, LLC Delaware 37 Aramark Healthcare Technologies, LLC Delaware 38 Aramark Industrial Services, LLC Delaware 39 Aramark Japan, LLC Delaware 41 Aramark Management, LLC Delaware 42 Aramark Organizational Services, LLC Delaware 43 Aramark Processing, LLC Delaware 44 Aramark Rail Services, LLC Delaware 45 Aramark RBI, Inc. Delaware 46 Aramark Refreshment Group, Inc. Delaware 47 Aramark Refreshment Services of Tampa, LLC Delaware 48 Aramark Refreshment Services, LLC Delaware 49 Aramark Schools Facilities, LLC Delaware 50 Aramark Schools, LLC Delaware 51 Aramark SCM, Inc. Delaware 52 Aramark Senior Living Services, LLC Delaware 53 Aramark Senior Notes Company, LLC Delaware 54 Aramark Services of Puerto Rico, Inc. Delaware 55 Aramark SM Management Services, Inc. Delaware 56 Aramark SMMS LLC Delaware 57 Aramark SMMS Real Estate LLC Delaware 58 Aramark Sports and Entertainment Group, LLC Delaware 59 Aramark Sports and Entertainment Services, LLC Delaware 60 Aramark Sports Facilities, LLC Delaware 61 Aramark Sports, LLC Delaware 62 Aramark Togwotee, LLC Delaware 63 Aramark Trademark Services, Inc. Delaware 64 Aramark U.S. Offshore Services, LLC Delaware 65 Aramark Uniform & Career Apparel Group, Inc. Delaware 66 Aramark Uniform & Career Apparel, LLC Delaware 67 Aramark Uniform Manufacturing Company Delaware 68 Aramark Uniform Services (Matchpoint) LLC Delaware 69 Aramark Uniform Services (Rochester) LLC Delaware 70 Aramark Uniform Services (Syracuse) LLC Delaware 71 Aramark Uniform Services (Texas) LLC Delaware 72 Aramark Uniform Services (West Xxxxx) LLC Delaware 73 Aramark Venue Services, Inc. Delaware 74 Aramark WTC, LLC Delaware 75 Aramark/HMS, LLC Delaware 76 Canyonlands Rafting Hospitality, LLC Delaware 77 D.G. Xxxxx XX, Inc. Delaware 78 Delsac VIII, Inc. Delaware 79 Filterfresh Coffee Service, LLC Delaware 80 Filterfresh Franchise Group, LLC Delaware 81 Fine Host Holdings, LLC Delaware 82 Xxxxxxxx Conference Associates, LLC Delaware 83 Xxxxx X. Xxxxxxx, LLC Delaware 84 HPSI Purchasing Services LLC Delaware 85 Institutional Processing Services LLC Delaware 86 Xxxxx Textile Rental Services, LLC Delaware 87 Lifeworks Restaurant Group, LLC Delaware 88 New Aramark LLC Delaware 89 Yosemite Hospitality, LLC Delaware 90 American Snack & Beverage, LLC Florida 91 Aramark Distribution Services, Inc. Illinois 92 Aramark FHC Kansas, Inc. Kansas 93 Aramark Services of Kansas, Inc. Kansas 94 Restaura, Inc. Michigan 95 Travel Systems, LLC Nevada 96 Xxxxx X. Xxxxxxx Inc. of New Jersey. New Jersey 97 Aramark Technical Services North Carolina, Inc. North Carolina 98 Xxxxxxxx Conference Services of North Carolina, LLC North Carolina 99 Aramark American Food Services, LLC Ohio 100 Aramark Consumer Discount Company Pennsylvania 101 Xxxxx X. Xxxxxxx Inc. of Penn Pennsylvania 102 MyAssistant, Inc. Pennsylvania 103 Aramark Business Dining Services of Texas, LLC Texas 104 Aramark Educational Services of Texas, LLC Texas 105 Aramark Food Service of Texas, LLC Texas 106 Aramark Sports and Entertainment Services of Texas, LLC Texas 107 Brand Coffee Service, Inc. Texas 108 Aramark Educational Services of Vermont, Inc. Vermont 109 Overall Laundry Services, Inc. Washington 110 Aramark Capital Asset Services, LLC Wisconsin EXHIBIT A [Face of Note] [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Regulation S Temporary Global Note Legend, if applicable pursuant to the provisions of the Indenture] CUSIP [ ] ISIN [ ]1 [RULE 144A][REGULATION S] GLOBAL NOTE representing up to $ 5.000% Senior Notes due 2025 No. [$ ] ARAMARK SERVICES, INC. promises to pay to CEDE & CO. or registered assigns, the principal sum [set forth on the Schedule of Exchanges of Interests in the Global Note attached hereto] [of United States Dollars] on April 1, 2025. Interest Payment Dates: April 1 and October 1 Record Dates: March 15 and September 15 1 Rule 144A Note CUSIP: 038522 AP3 Rule 144A Note ISIN: US038522AP34 Regulation S Note CUSIP: U0389L AD3 Regulation S Note ISIN: USU0389LAD39 IN WITNESS HEREOF, the Issuer has caused this instrument to be duly executed. Dated: ARAMARK SERVICES, INC. By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person This is one of the Notes referred to in the within-mentioned Indenture. THE BANK OF NEW YORKYORK MELLON, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note) -------------------------------------------------------------------------------- CUSIP _____] 5.000% Senior Notes due 2025 Capitalized terms used herein shall have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pagespage.] SIGNATURES Dated as of July June 29, 2005 L-3 COMMUNICATIONS CORPORATION 2001 METAL MANAGEMENT, INC. By: /s/ Xxxxxxx Robxxx X. Xxxxxxxxx ------------------------------------ Xxrxx ----------------------------------------- Name: Xxxxxxx Robxxx X. Xxxxxxxxx Xxrxx Title: GUARANTORS: APCOMExecutive Vice President CALIFORNIA METALS RECYCLING, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSCIM TRUCKING, INC. XXXXXXXX FIRMA, INC. HYGIENETICS ENVIRONMENTAL FIRMA PLASTIC CO., INC. MAC LEOD METALS CO. METAL MANAGEMENT AEROSPACE, INC. METAL MANAGEMENT ALABAMA, INC. METAL MANAGEMENT ARIZONA, L.L.C. METAL MANAGEMENT CONNECTICUT, INC. METAL MANAGEMENT GULF COAST, INC. METAL MANAGEMENT INDIANA, INC. METAL MANAGEMENT MEMPHIS, L.L.C. METAL MANAGEMENT MIDWEST, INC. METAL MANAGEMENT MISSISSIPPI, L.L.C. METAL MANAGEMENT NORTHEAST, INC. METAL MANAGEMENT OHIO, INC. METAL MANAGEMENT PITTSBURGH, INC. METAL MANAGEMENT REALTY, INC. METAL MANAGEMENT S&A HOLDINGS, INC. METAL MANAGEMENT SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSMETAL MANAGEMENT STAINLESS & ALLOY, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE METAL MANAGEMENT WEST COAST HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIMETAL MANAGEMENT WEST, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESMETXXX.XXX, XNC. MTLM ARIZONA, INC. L-3 COMMUNICATIONS ESSCO, PROLER SOUTHWEST INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INCTROJAN TRADING CO. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHBy: /s/ Robxxx X. Xxrxx ----------------------------------------- Name: Robxxx X. Xxrxx Title: Vice President RESERVE IRON & METAL LIMITED PARTNERSHIP By: METAL MANAGEMENT OHIO, INC., as Guarantors its general partner By: /s/ Xxxxxxxxxxx Robxxx X. Xxxxxxx ---------------------------------------- Xxrxx ----------------------------------------- Name: Xxxxxxxxxxx Robxxx X. Xxxxxxx Xxrxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKBNY MIDWEST TRUST COMPANY, as Trustee By: /s/ Xxxxx D. X. Xxxxxx ---------------------------------------- Xxxxxxx ------------------------------- Name: Xxxxx D. X. Xxxxxx Xxxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____President

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of in this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 70 SIGNATURES Dated as of July 29May 26, 2005 L-3 COMMUNICATIONS CORPORATION 2006 ISSUER: HANGER ORTHOPEDIC GROUP, INC. By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxxx XxXxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxxxx XxXxxxx Title: Executive Vice President and Chief Financial Officer GUARANTORS: APCOMABI ORTHOTIC/PROSTHETIC LABORATORIES, LTD. ADVANCED BIO-MECHANICS, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSTHE BRACE SHOP PROSTHETIC ORTHOTIC CENTERS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX CERTIFIED ORTHOTICS & PROSTHETIC ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONCONNER BRACE CO., INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSDOBI-SYMPLEX, INC. L-3 COMMUNICATIONS SONOMA EODOSTEON SOLUTIONS, LLC ELITE CARE, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRIXXXXXX XXXXXX & SON ORTHOTICS & PROSTHETICS, INC. PAC ORD INC. POWER PARAGONFORTITUDE MEDICAL SPECIALISTS, INC. SHIP ANALYTICSGREATER CHESAPEAKE ORTHOTICS & PROSTHETICS, INC. SHIP ANALYTICS INTERNATIONALHANGER PROSTHETICS & ORTHOTICS, INC. SHIP ANALYTICS USAHANGER PROSTHETICS & ORTHOTICS EAST, INC. SPD ELECTRICAL SYSTEMSHANGER PROSTHETICS & ORTHOTICS WEST, INC. SPD SWITCHGEAR HANGER SERVICES CORPORATION HPO, INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INNOVATIVE NEUROTRONICS, INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) LAURENCE’S ORTHOTICS & PROSTHETICS, INC. WESCAM INCORPORATED WESCAM LINKIA, LLC WOLF COACHNWPO ASSOCIATES, INC.. OPNET, as Guarantors INC. REHAB DESIGNS OF AMERICA CORPORATION REHAB DESIGNS OF COLORADO, INC. REHAB DESIGNS OF WISCONSIN, INC. SHASTA ORTHOTIC PROSTHETIC SERVICE, INC. SOUTHERN PROSTHETIC SUPPLY, INC. By: /s/ Xxxxxxxxxxx Xxxxxx X. Xxxxxxx ---------------------------------------- XxXxxxx Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx XxXxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor Treasurer TRUSTEE: WILMINGTON TRUST COMPANY, AS TRUSTEE By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- ______________________ Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- [_]% Senior Notes due 2014 CUSIP _____________ No. ___ $_____________ HANGER ORTHOPEDIC GROUP, INC. promises to pay to CEDE & CO., INC. or registered assigns, the principal sum of _________________ Dollars ($______________) on June 1, 2014. Interest Payment Dates: June 1 and December 1, commencing December 1, 2006. Record Dates: May 15 and November 15. Dated:______________

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture Indenture, which have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] Table of Contents Exhibit T3C SIGNATURES Dated as of July 29XXXXXX PUBLISHING GROUP, 2005 L-3 COMMUNICATIONS CORPORATION LLC By: /s/ Xxxxxxx Name: Xxxxx X. Xxxxxxxxx ------------------------------------ Xxxxxxxx Title: Senior Vice President, Finance XXXXXX PUBLISHING FINANCE CO. By: Name: Xxxxx X. Xxxxxxxx Title: Senior Vice President, Finance Table of Contents Exhibit T3C YANKTON PRINTING COMPANY BROADCASTER PRESS, INC. THE SUN TIMES, LLC XXXXX NEWS, LLC LOG CABIN DEMOCRAT, LLC ATHENS NEWSPAPERS, LLC SOUTHEASTERN NEWSPAPERS COMPANY, LLC XXXXXXXX COMMUNICATIONS, INC. FLORIDA PUBLISHING COMPANY THE OAK RIDGER, LLC MPG ALLEGAN PROPERTY, LLC MPG HOLLAND PROPERTY, LLC By: Name: Xxxxx X. Xxxxxxxx Title: Senior Vice President, Finance SOUTHWESTERN NEWSPAPERS COMPANY, L.P. By: Xxxxxx Publishing Group, LLC its General Partner By: Name: Xxxxx X. Xxxxxxxx Title: Senior Vice President, Finance WILMINGTON TRUST FSB, solely as Trustee and Collateral Agent By: Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS Table of Contents Exhibit T3C SCHEDULE A GUARANTORS Yankton Printing Company Broadcaster Press, Inc. The Sun Times, LLC Xxxxx News, LLC Log Cabin Democrat, LLC Athens Newspapers, LLC Southeastern Newspapers Company, LLC Xxxxxxxx Communications, Inc. Florida Publishing Company Southwestern Newspapers Company, L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATIONThe Oak Ridger, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK LLC MPG Allegan Property, LLC MPG Holland Property, LLC Table of Contents Exhibit T3C SCHEDULE B LIST OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____ACCEPTABLE FINANCIAL INSTITUTIONS

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of in this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURE PAGE TO INDENTURE SIGNATURE PAGE TO INDENTURE SIGNATURES Dated as of July 29June 28, 2005 L-3 COMMUNICATIONS CORPORATION By2002 ISSUER: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL EXTENDICARE HEALTH SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSBy: /s/ Mark W. Durishan ---------------------------------------- Name: Mark W. Durishan Title: Vice Prxxxxxxx, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE Xxxxx Xinancial Officer and Treasurer GUARANTORS: EXTENDICARE HEALTH FACILITY HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIEXTENDICARE HEALTH FACILITIES, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESCOVENTRY CARE, INC. L-3 COMMUNICATIONS ESSCONORTHERN HEALTH FACILITIES, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT EXTENDICARE HOMES, INC. EXTENDICARE HEALTH NETWORK, INC. THE PROGRESSIVE STEP CORPORATION EXTENDICARE OF INDIANA, INC. EDGEWOOD NURSING CENTER, INC. ELDER CREST, INC. HAVEN CREST, INC. MEADOW CREST, INC. OAK HILL HOME OF REST AND CARE, INC. EXTENDICARE GREAT TRAIL, INC. FIR LANE TERRACE CONVALESCENT CENTER, INC. ADULT SERVICES UNLIMITED, INC. ARBORS EAST, INC. ARBORS AT TOLEDO, INC. HEALTH POCONOS, INC. MARSHALL PROPERTIES, INC. COVENTRY CARE HOLXXXXX, XNC. UNITED PROFESSIONAL SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMSBy: /s/ Mark W. Durishan -------------------------------------------------- Name: Mark W. Durishan Title: Vice President, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY Cxxxx Xxxxxxxxx Xfficer and Treasurer INDIANA HEALTH AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHREHABILITATION PARTNERSHIP BY: EXTENDICARE HOMES, INC., as Guarantors AS GENERAL PARTNER By: /s/ Xxxxxxxxxxx X. Xxxxxxx Mark W. Durishan -------------------------------------------------- Name: Mark W. Durishan Title: Vice President, Cxxxx Xxxxxxxxx Xfficer and Treasurer BY: EXTENDICARE OF INDIANA, INC., AS GENERAL PARTNER By: /s/ Mark W. Durishan -------------------------------------------------- Name: Mark W. Durishan Title: Vice President, Cxxxx Xxxxxxxxx Xfficer and Treasurer CONCORDIA MANOR, LLC FIRST COAST HEALTH AND REHABILITATION CENTER, LLC JACKSON HEIGHTS REHABILITATION CENTER, LLC XXXXXXXE ISLE CARE CENTER, LLC BY: EXTENDICARE HOMES, INC., AS SOLE MEMBER By: /s/ Mark W. Durishan -------------------------------------------------- Name: Mark W. Durishan Title: Vice President, Cxxxx Xxxxxxxxx Xfficer and Treasurer KAUFMAN STREET, WV, LLC NEW CASTLE CARE, LLX BY: FIR LANE TERRACE CONVALESCENT CENTER, INC., AS SOLE MEMBER By: /s/ Mark W. Durishan -------------------------------------------------- Name: Mark W. Durishan Title: Vice President, Cxxxx Xxxxxxxxx Xfficer and Treasurer ALPINE HEALTH AND REHABILITATION CENTER, LLC COLONIAL CARE, LLC GREENBRIAR CARE, LLC GREENBROOK CARE, LLC HERITAGE CARE, LLC LADY LAKE CARE, LLC NEW HORIZON CARE, LLC NORTH REHABILITATION CARE, LLC PALM COURT CARE, LLC RICHEY MANOR, LLC ROCKLEDGE CARE, LLC SOUTH HERITAGE HEALTH AND REHABILITATION CENTER, LLC THE OAKS RESIDENTIAL AND REHABILITATION CENTER, LLC WINTER HAVEN HEALTH AND REHABILITATION CENTER, LLC BY: EXTENDICARE HEALTH FACILITIES, INC., AS SOLE MEMBER By: /s/ Mark W. Durishan -------------------------------------------------- Name: Mark W. Durishan Title: Vice President, Cxxxx Xxxxxxxxx Xfficer and Treasurer ARBORS AT TAMPA, LLC ARBORS AT BAYONET POINT, LLC ARBORS AT FAIRLAWN CARE, LLC ARBORS AT FAIRLAWN REALTY OH, LLC ARBORS AT SYLVANIA CARE, LLC ARBORS AT SYLVANIA REALTY OH, LLC ARBORS WEST CARE, LLC ARBORS WEST REALTY OH, LLC COLUMBUS REHABILITATION REALTY OH, LLC JACKSONVILLE CARE, LLC SAFETY HARBOR CARE, LLC KISSIMMEE CARE, LLC ORANGE PARK CARE, LLC OREGON CARE, LLC PORT CHARLOTTE CARE, LLC SARASOTA CARE, LLC SEMINOLE CARE, LLC WINTER HAVEN CARE, LLC BLANCHESTER CARE, LLC CANTON CARE, LLC COLUMBUS REHABILITATION CARE, LLC DAYTON CARE, LLC DELAWARE CARE, LLC GALLIPOLIS CARE, LLC HILLIARD CARE, LLC LONDON CARE, LLC MARIETTA CARE, LLC ROCKMILL CARE, LLC ROCKSPRINGS CARE, LLC WATERVILLE CARE, LLC WOODSFIELD CARE, LLC BY: NORTHERN HEALTH FACILITIES, INC., AS SOLE MEMBER By: /s/ Mark W. Durishan -------------------------------------------------- Name: Mark W. Durishan Title: Vice President, Cxxxx Xxxxxxxxx Xfficer and Treasurer STONEBRIDGE CARE, LP EDGEWOOD CARE, LP ELDERCREST CARE, LP HAVEN CARE, LP MEADOW CARE, LP OAK HILL CARE, LP BY: COVENTRY CARE HOLDINGS, INC., AS GENERAL PARTNER By: /s/ Mark W. Durishan -------------------------------------------------- Name: Mark W. Durishan Title: Vice President, Cxxxx Xxxxxxxxx Xfficer and Treasurer GREAT TRAIL CARE, LLC BY: EXTENDICARE GREAT TRAIL, INC., AS SOLE MEMBER By: /s/ Richard Bertrand -------------------------------------------------- Name: Richard Bertrand Title: Senior Vice Presixxxx - Xxxxxxxxxnt FISCAL SERVICES GROUP, LLC PARTNERS HEALTH GROUP, LLC BY: EXTENDICARE HEALTH NETWORK, INC., AS SOLE MEMBER By: /s/ Richard Bertrand -------------------------------------------------- Name: Richard Bertrand Title: Senior Vice Presixxxx - Xxxxxxxxxnt MILFORD CARE, LLC BY: MARSHALL PROPERTIES, INC., AS SOLE MEMBER Xx: /x/ Richard Bertrand -------------------------------------------------- Name: Richard Bertrand Title: Senior Vice Presixxxx - Xxxxxxxxxnt PARTNERS HEALTH GROUP - FLORIDA, LLC PARTNERS HEALTH GROUP - LOUISIANA, LLC PARTNERS HEALTH GROUP - TEXAS, LLC BY: PARTNERS HEALTH GROUP, LLC BY: EXTENDICARE HEALTH NETWORK, INC., AS SOLE MEMBER By: /s/ Richard Bertrand -------------------------------------------------- Name: Richard Bertrand Title: Senior Vice Presixxxx - Xxxxxxxxxnt TRUSTEE: U.S. BANK, N.A. By: /s/ Steven J. Peterson ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Steven J. Peterson Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Trust Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____)

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pagesIndenture signature page follows] SIGNATURES Dated as of July 29100 [Indenture signature page] Company: DATED: JUNE 6, 2005 L-3 COMMUNICATIONS 2003 IASIS HEALTHCARE CORPORATION ByBY: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ David R. White ________________________________________ Name: Xxxxxxx X. Xxxxxxxxx David R. White Title: GUARANTORSPresident and Chxxx Xxxxxxxxx Officer Guarantors: APCOMARIZONA DIAGNOSTIC & SURGICAL CENTER, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSBAPTIST JOINT VENTURE HOLDINGS, INC. XXXXXXXX BEAUMONT HOSPITAL HOLDINGS, INC. HYGIENETICS ENVIRONMENTAL BILTMORE SURGERY CENTER HOLDINGS, INC. CLINICARE OF UTAH, INC. DAVIS HOSPITAL & MEDICAL CENTER, INC. XXXXX SURGICAL CENTER HOLDINGS, INC. FXXXX CHOICE PHYSICIANS NETWORK HOLDINGS, INC. IASIS HEALTHCARE HOLDINGS, INC. IASIS MANAGEMENT COMPANY JORDAN VALLEY HOSPITAL HOLDINGS, INC. METRO AMBULATORY SURGERY CENTER, INC. PIONEER VALLEY HEALTH PLAN, INC. PIONEER VALLEY HOSPITAL, INC. ROCKY MOUNTAIN MEDICAL CENTER, INC. SALT LAKE REGIONAL MEDICAL CENTER, INC. SANDY CITY HOLDINGS, INC. SOUTHRIDGE PXXXX HOLDINGS, INC. SSJ ST. PETERSBURG HOLDINGS, INC. BROOKWOOD DIAGNOSTIC CENTER OF TAMPA, INC. IASIS PHYSICIANS SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSCLINICARE OF TEXAS, INC. L-3 COMMUNICATIONS AEROMETIASIS FINANCE, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYIASIS HOME INFUSION AND MEDICAL EQUIPMENT, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSIASIS TRANSCO, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE MCS/AZ, INC. By: /s/ W. Carl Whitmer ____________________________________________ Name: W. Carl Whitmer Title: Chief Financial Ofxxxxx GUARANTORS (CONTINUED): PALMS OF PASADENA HOMECARE, INC. TAMPA BAY STAFFING SOLUTIONS, INC. IASIS HEALTHCARE MSO SUB OF SALT LAKE CITY, LLC BILTMORE SURGERY CENTER, INC. MEMORIAL HOSPITAL OF TAMPA, LP MESA GENERAL HOSPITAL, LP ODESSA REGIONAL HOSPITAL, LP PALMS OF PASADENA HOSPITAL, LP SOUTHWEST GENERAL HOSPITAL, LP ST. LUKE'S BEHAVIORAL HOSPITAL, LP ST. LUKE'S MEDICAL CENTER, LP TEMPE ST. LUKE'S HOSPITAL, LP TOWN & COUNTRY HOSPITAL, LP JORDAN VALLEY HOSPITAL, LP XXXXXXXXX XXXXX XOSPITAL, LP By: IASIS HEALTHCARE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx W. Carl Whitmer ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx W. Carl Whitmer Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Chief Financiax Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE XHE BANK OF NEW YORK, as Trustee ByBY: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President Mary K. LaGumina ----------------------------- Authorized Xxxxxxxxx EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP ================================================================================ CUSIP____________

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29March 20, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM2001 OMNICARE, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP :_____________________________________ Name: Title: Attest: ___________________________________ Name: Title: 82 AAHS ACQUISITION CORP. ACCU-MED SERVICES, INC. ACP ACQUISITION CORP. AMC-NEW YORK, INC. AMC-TENNESSEE, INC. BACH'S PHARMACY SERVICES, LLC BADGER ACQUISITION OF OHIO LLC BIO-PHARM INTERNATIONAL, INC. BPNY ACQUISITION CORP. BPTX ACQUISITION CORP. CAMPO'S MEDICAL PHARMACY, INC. CARE PHARMACEUTICAL SERVICES, INC. CHP ACQUISITION CORP. CIP ACQUISITION CORP. COMPSCRIPT, INC. COMPSCRIPT - BOCA, INC. COMPSCRIPT - MOBILE, INC. CP ACQUISITION CORP. CREEKSIDE MANAGED CARE PHARMACY, INC. CTLP ACQUISITION CORP. D & R PHARMACEUTICAL SERVICES, INC. ELECTRA ACQUISITION CORP. XXXXX DRUGS, INC. EURO BIO-PHARM CLINICAL SERVICES, INC. EVERGREEN PHARMACEUTICAL, INC. EVERGREEN PHARMACEUTICAL OF CALIFORNIA, INC. HMIS, INC. HOME CARE PHARMACY, INC. HOME PHARMACY SERVICES, INC. HYTREE PHARMACY, INC. INTERLOCK PHARMACY SYSTEMS, INC. JHC ACQUISITION, INC. XXXXXXX HEALTH SERVICES, INC. LO-MED PRESCRIPTION SERVICES, INC. LPI ACQUISITION CORP. MANAGED HEALTHCARE, INC. MED WORLD ACQUISITION CORP. MEDICAL ARTS HEALTH CARE, INC. MEDICAL SERVICES CONSORTIUM, INC. MOSI ACQUISITION CORP. NIHAN & XXXXXX, INC. NIV ACQUISITION CORP. NORTH SHORE PHARMACY SERVICES, INC. OCR-RA ACQUISITION CORP. OFL CORP. 83 OMNIBILL SERVICES LLC OMNICARE CLINICAL RESEARCH, INC. OMNICARE CLINICAL RESEARCH, LLC OMNICARE MANAGEMENT COMPANY OMNICARE PENNSYLVANIA MED SUPPLY, LLC OMNICARE PHARMACEUTICS, INC. OMNICARE PHARMACIES OF MAINE HOLDING COMPANY OMNICARE PHARMACIES OF PENNSYLVANIA EAST, LLC OMNICARE PHARMACIES OF PENNSYLVANIA WEST, INC. OMNICARE PHARMACIES OF THE GREAT PLAINS HOLDING COMPANY OMNICARE PHARMACY AND SUPPLY SERVICES, INC. OMNICARE PHARMACY OF MAINE LLC OMNICARE PHARMACY OF NEBRASKA LLC OMNICARE PHARMACY OF SOUTH DAKOTA LLC OMNICARE PHARMACY OF THE MIDWEST, INC. PBM-PLUS, INC. PHARMACON CORP. PHARMACY ASSOCIATES OF GLENS FALLS, INC. PHARMACY CONSULTANTS, INC. PHARM-CORP OF MAINE LLC PHARMED HOLDINGS, INC. PRN PHARMACEUTICAL SERVICES, INC. ROESCHEN'S HEALTHCARE CORP. ROYAL CARE OF MICHIGAN LLC SHC ACQUISITION CO, LLC SHORE PHARMACEUTICAL PROVIDERS, INC. SOUTHSIDE APOTHECARY, INC. SPECIALIZED HOME INFUSION OF MICHIGAN LLC SPECIALIZED PATIENT CARE SERVICES, INC. SPECIALIZED PHARMACY SERVICES, INC. STERLING HEALTHCARE SERVICES, INC. SUPERIOR CARE PHARMACY, INC. TCPI ACQUISITION CORP. THE HARDARDT GROUP, INC. THG ACQUISITION CORP. THREE FORKS APOTHECARY, INC. UC ACQUISITION CORP. VALUE HEALTH CARE SERVICES, INC. VALUE PHARMACY, INC. VITAL CARE INFUSION SUPPLY, INC. XXXXX MEDICAL SYSTEMS, INC. 84 WESTHAVEN SERVICES CO. XXXXXXXXXX DRUG COMPANY, INCORPORATED XXXXXXX'X PHARMACY By:________________________________________ Xxxxxxx X. Xxxxxx Treasurer Attest: ___________________________________ Name: Title: 85 BADGER ACQUISITION LLC BADGER ACQUISITION OF BROOKSVILLE LLC BADGER ACQUISITION OF KENTUCKY LLC BADGER ACQUISITION OF MINNESOTA LLC BADGER ACQUISITION OF ORLANDO LLC BADGER ACQUISITION OF TAMPA LLC BADGER ACQUISITION OF TEXAS LLC LCPS ACQUISITION, LLC OMNICARE PHARMACY OF COLORADO LLC OMNICARE PHARMACY OF MASSACHUSETTS LLC OMNICARE PHARMACY OF TENNESSEE LLC By: _____________________________________ Xxxxxx X. Xxxxx Treasurer Attest: ____________________________ Name: Title: SWISH, INC. By: ____________________________________ Xxxxx X. XxXxxxxx Treasurer Attest ____________________________ Authorized Signatory Date: 86 SUNTRUST BANK By:_____________________________________ Name: Title: Attest ___________________________________ Authorized Signatory Date: 87 EXHIBIT A [Face of Note] -------------------------------------------------------------------------------- CUSIP/CINS ____________ 8 1/8% Senior Subordinated Notes due 2011 No. ___ $____________ OMNICARE, INC. promises to pay to _____________________________________________________________ or registered assigns, the principal sum of ___________________________________________________________ Dollars on March 15, 2011. Interest Payment Dates March 15 and September 15 Record Dates: March 1 and September 1 Dated: _______________, ____ OMNICARE, INC. By:_____________________________________ Name: Title: By:_____________________________________ Name: Title:

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 103 SIGNATURES Dated as of July 29, 2005 L-3 COMMUNICATIONS CORPORATION 2002 ISSUERS: XXXX LAS VEGAS, LLC, a Nevada limited liability company, By: /s/ Wynn Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member Name: Xxxxxxx X. Xxxxxxxxx Title: WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation, By: Name: Title: 104 GUARANTORS: APCOMDESERT INN WATER COMPANY, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSLLC, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICESa Nevada limited liability company, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSBy: Xxxxxxx Xxxxxx, INC. L-3 COMMUNICATIONS AEROMETLLC, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYa Nevada limited liability company, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSits sole member By: Wynn Resorts, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE Limited, a Nevada corporation, its sole member Name: Title: XXXX DESIGN & DEVELOPMENT, LLC, a Nevada limited liability company, By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member Name: Title: XXXX RESORTS HOLDINGS, INCLLC, a Nevada limited liability company, By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member Name: Title: 105 LAS VEGAS JET, LLC, a Nevada limited liability company, By: Wynn Las Vegas, LLC, a Nevada limited liability company, By: Wynn Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member Name: Title: WORLD TRAVEL, LLC, a Nevada limited liability company, By: Xxxx Las Vegas, LLC, a Nevada limited liability company, By: Wynn Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member Name: Title: 106 PALO, LLC, a Delaware limited liability company, By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member Name: Title: XXXXXXX XXXXXX, LLC, a Nevada limited liability company, By: Wynn Resorts, Limited, a Nevada corporation, its sole member Name: Title: Attest: XXXXX FARGO BANK, NATIONAL ASSOCIATION By: Name: Title: Attest: Authorized Signatory Date: 107 [Face of Note] CUSIP/CINS 983130 AA3 % Second Mortgage Notes due 2010 No. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI$ XXXX LAS VEGAS, INCLLC XXXX LAS VEGAS CAPITAL CORP. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESpromises to pay to CEDE & CO. or registered assigns, INCthe principal sum of Dollars on , 2010. L-3 COMMUNICATIONS ESSCOInterest Payment Dates: and Record Dates: and Dated: , INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT 2002 WYNN LAS VEGAS, LLC, a Nevada limited liability company, By: Wynn Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Xxxxxxx Xxxxxx, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member Name: Title: By: Name: Title: WYNN LAS VEGAS CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INCCORP., as Guarantors a Nevada corporation, By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx TitleThis is one of the Notes referred to in the within-mentioned Indenture: Authorized Person THE BANK OF NEW YORKXXXXX FARGO BANK, NATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note] % Second Mortgage Notes due 2010 THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) -------------------------------------------------------------------------------- CUSIP _____OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (1) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.06 OF THE INDENTURE, (2) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (3) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (4) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF XXXX LAS VEGAS, LLC AND XXXX LAS VEGAS CAPITAL CORP. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 XXXXX XXXXXX, XXX XXXX, XXX XXXX) ("XXX"), TO THE ISSUERS OR THEIR AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.1 This legend should be included on the Global Notes and omitted from Definitive Notes. Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES 106 Dated as of July 29March 23, 2005 L-3 COMMUNICATIONS CORPORATION 2004 CALPINE GENERATING COMPANY, LLC By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ ZAMIR RAUF --------------------------- Name: Xxxxxxx X. Xxxxxxxxx Zamir Rauf Title: GUARANTORS: APCOM, INCVixx Xxxxxxxnt CALGEN FINANCE CORP. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- ZAMIR RAUF --------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Zamir Rauf Title: Vixx Xxxxxxxnt 107 THE GUARANTORS: CALGEN EXPANSION COMPANY, LLC CPN FREESTONE, LLC CALPINE FREESTONE, LLC CALPINE FREESTONE ENERGY GP, LLC CALPINE CHANNEL ENERGY CENTER LP, LLC CALPINE CHANNEL ENERGY CENTER GP, LLC CHANNEL POWER GP, LLC CALGEN EQUIPMENT FINANCE HOLDINGS, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY ONE, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY THREE LLC CALGEN EQUIPMENT FINANCE COMPANY, LLC NUECES BAY ENERGY LLC CALPINE NORTHBROOK SOUTHCOAST INVESTORS, LLC CALPINE CORPUS CHRISTI ENERGY GP, LLC ZION ENERGY LLC LOS MEDANOS ENERGY CENTER, LLC MORGAN ENERGY CENTER, LLC CARVILLE ENERGY LLC DECATUR ENERGY CENTER, LLX CALPINE ONETA POWER I, LLC CALPINE ONETA POWER II, LLX CALPINE BAYTOWN ENERGY CEXXXX LP, LLC CALPINE BAYTOWN ENERGY CENTER GP, LLC BAYTOWN POWER GP, LLC COLUMBIA ENERGY LLC DELTA ENERGY CENTER, LLC CALGEN PROJECT EQUIPMENT FINANCE COMPANY TWO, LLC PASTORIA ENERGY FACILITY L.L.C. CALPINE PASTORIA HOLDINGS, LLC Executing this First Priority Indenture on behalf of and so as to bind each of the limited liability companies named above under the caption "The Guarantors" By: /s/ ZAMIR RAUF -------------------------------------------- Name: Zamir Rauf Title: Vice President 108 THE GUARANTORS: FREESTONE POWER GENERATION LP CALPINE FREESTONE ENERGY, LP CALPINE POWER EQUIPMENT LP CHANNEL POWER, LP CHANNEL ENERGY CENTER, LP CALPINE CORPUS CHRISTI ENERGY, LP CORPUS CHRISTI COGENERATION LP CALPINE ONETA POWER, L.P. BAYTOWN ENERGY CENTER, LP BAYTOWN POWER, LP Executing this First Priority Indenture on behalf of and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. so as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner to bind each of the limited partnerships named above under the caption "The Guarantors" By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- ZAMIR RAUF -------------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Zamir Rauf Title: Authorized Person THE BANK OF NEW YORK, as Trustee Vice President 109 WILMINGTON TRUST FSB By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- JAMES J. MCGINLEY -------------------------------------------- Name: Xxxxx X. Xxxxxx James J. McGinley Title: Assistant Vice President Presidxxx SCHEDULE A PERMITTED PRIOR LIENS EXISTING ON THE CLOSING DATE See attached. SCHEDULE A-1 EXHIBIT A ([Face of Note) ] -------------------------------------------------------------------------------- CUSIP [13135B AA 4--144A] [13135B AE 6--Exchange] ISIN [US13135BAA44--144A] [US13135BAE65--Exchange] First Priority Secured Floating Rate Note due 2009 No. ___ $____________ CALPINE GENERATING COMPANY, LLC CALGEN FINANCE CORP. promises to pay to ______________ or registered assigns, the principal sum of ___________________________________________________________ Dollars on April 1, 2009.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 112 SIGNATURES Dated as of July 291, 2005 L-3 COMMUNICATIONS CORPORATION 2003 RELIANT RESOURCES, INC. By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ WILLIAM S. WALLER -------------------------------------- Name: Xxxxxxx X. Xxxxxxxxx William S. Waller Title: GUARANTORS: APCOMVice Presxxxxx xxx Xxxxxxxer GUIDESTREET, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSINSYNC INTERNET SERVICES, INCORPORATED REEVES COUNTY LAND ASSOCIATES, LLC XXXXXXT ENERGY ARROW CANYON, LLC RELIANT ENERGY ATLANTIC, LLC RELIANT ENERGY AURORA DEVELOPMENT, LLC RELIANT ENERGY AURORA HOLDING, LLC RELIANT ENERGY BIGHORN, LLC RELIANT ENERGY BROADBAND, INC. XXXXXXXX RELIANT ENERGY CALIFORNIA HOLDINGS, LLC RELIANT ENERGY CHOCTAW COUNTY, LLC RELIANT ENERGY COMMUNICATIONS, INC. HYGIENETICS ENVIRONMENTAL RELIANT ENERGY CONSTRUCTION, LLC By: /s/ WILLIAM S. WALLER, JR. -------------------------------------- Name: William S. Waller, Jr. Title: Vicx Xxxxxxxxx xxx Xxxxxxrer RELIANT ENERGY COOLWATER, INC. RELIANT ENERGY CORPORATE SERVICES, LLC RELIANT ENERGY CUSTOMER CARE SERVICES, LLC RELIANT ENERGY DEER PARK, INC. RELIANT ENERGY DESERT BASIN, LLC RELIANT ENERGY DEVELOPMENT SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSRELIANT ENERGY ELECTRIC SOLUTIONS, LLC RELIANT ENERGY ELLWOOD, INC. L-3 COMMUNICATIONS AEROMETRELIANT ENERGY EQUIPMENT COMPANY, LLC RELIANT ENERGY ERIE WEST, LLC RELIANT ENERGY ETIWANDA, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE RELIANT ENERGY FLORIDA HOLDINGS, LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYRELIANT ENERGY FUNDING, LLC RELIANT ENERGY GAS STORAGE, LLC RELIANT ENERGY GILBERT, LLC RELIANT ENERGY HUNTERSXXXX, XLC RELIANT ENERGY INDIAN RIVER, LLC RELIANT ENERGY KEY/CON FUELS, LLC RELIANT ENERGY MANDALAY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSRELIANT ENERGY MID-ATLANTIC DEVELOPMENT, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE RELIANT ENERGY NET VENTURES, INC. By: /s/ WILLIAM S. WALLER, JR. -------------------------------------- Name: William S. Waller, Jr. Title: Vicx Xxxxxxxxx xxx Xxxxxxrer RELIANT ENERGY NEW SMYRNA BEACH, LLC RELIANT ENERGY NORTHEAST GENERATION, INC. RELIANT ENERGY NORTHEAST HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIRELIANT ENERGY ORMOND BEACH, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESRELIANT ENERGY OSCEOLA, LLC RELIANT ENERGY PARTSCO, LLC RELIANT ENERGY PORTLAND, LLC RELIANT ENERGY POWER GENERATION, INC. L-3 COMMUNICATIONS ESSCORELIANT ENERGY POWER OPERATIONS I, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION RELIANT ENERGY POWER OPERATIONS II, INC. RELIANT ENERGY RENEWABLES ATASCOCITA GP, LLC L-3 COMMUNICATIONS FLIGHT CAPITAL RELIANT ENERGY RENEWABLES BAYTOWN GP, LLC L-3 COMMUNICATIONS GOVERNMENT RELIANT ENERGY RENEWABLES BLUE BONNET GP, LLC RELIANT ENERGY RENEWABLES COASTAL PLAINS GP, LLC RELIANT ENERGY RENEWABLES CONROE GP, LLC RELIANT ENERGY RENEWABLES FORT WORTH GP, LLC RELIANT ENERGY RENEWABLES SECURITY GP, LLC RELIANT ENERGY RENEWABLES, INC. By: /s/ WILLIAM S. WALLER, JR. -------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RETAIL HOLDINGS, LLC RELIANT ENERGY RETAIL SERVICES, LLC RELIANT ENERGY SABINE (TEXAS), INC. RELIANT ENERGY SERVICES DESERT BASIN, LLC RELIANT ENERGY SERVICES INTERNATIONAL, INC. RELIANT ENERGY SERVICES NEW MEXICO, LLC RELIANT ENERGY SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMSRELIANT ENERGY SEWARD, LLC RELIANT ENERGY SHELBY DXXXXXXMENT CORP. RELIANT ENERGY SHELBY HOLDING CORP. RELIANT ENERGY SIGNAL PEAK, LLC RELIANT ENERGY SOLUTIONS, LLC RELIANT ENERGY SOLUTIONS CALIFORNIA, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESRELIANT ENERGY SOLUTIONS EAST, LLC RELIANT ENERGY SOLUTIONS HOLDINGS, LLC RELIANT ENERGY SOLUTIONS WEST, LLC RELIANT ENERGY TITUS, LLC RELIANT ENERGY TRADING EXXXXXGE, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONRELIANT ENERGY VENTURES, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSBy: /s/ WILLIAM S. WALLER, JR. -------------------------------------- Name: William S. Waller, Jr. Title: Vicx Xxxxxxxxx xxx Xxxxxxrer RELIANT ENERGY WHOLESALE SERVICE COMPANY RELIANT ENERGY WINTER HAVEN, LLC RELIANT RESOURCES INTERNATIONAL SERVICES, INC. L-3 COMMUNICATIONS SONOMA EORELIANTENERGY.COM, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRIBy: /s/ WILXXXX X. XXXXXX, XR. -------------------------------------- Name: William S. Waller, Jr. Title: Vicx Xxxxxxxxx xxx Xxxxxxrer RELIANT ENERGY EUROPE TRADING & MARKETING, INC. PAC ORD INCRELIANT ENERGY SERVICES MID-STREAM, LLC STAREN POWER, LLC TEXAS STAR ENERGY COMPANY By: /s/ WILLIAM S. WALLER, JR. POWER PARAGON-------------------------------------- Name: William S. Waller, Jr. Title: Trexxxxxx RELIANT ENERGY CAPTRADES HOLDING CORP. RELIANT ENERGY SABINE (DELAWARE), INC. SHIP ANALYTICSRELIANT ENERGY RENEWABLES HOLDINGS II, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- PATRICIA GENZEL -------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Patricia Genzel Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor RELIANT ENERGY AURORA I, LP RELIANT ENERGY AURORA II, LP By: L-3 COMMUNICATIONS AIS GP CORPORATIONReliant Energy Auxxxx Xxxxlopment, as LLC, each of its General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx WILLIAM S. WALLER, JR. -------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY AURORA, LP By: Reliant Energy Aurora I, LP, its General Partner By: Reliant Energy Aurora Development, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx William S. Waller, Jr. Title: Authorized Person THE BANK OF NEW YORKVixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES ATASCOCITA, LP By: Reliant Energy Renewables Atascocita GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES BAYTOWN, LP By: Reliant Energy Renewables Baytown GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES BLUE BONNET, LP By: Reliant Energy Renewables Blue Bonnet GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES COASTAL PLAINS, LP By: Reliant Energy Renewables Coastal Plains GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES CONROE, LP By: Reliant Energy Renewables Conroe GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES FORT WORTH, LP By: Reliant Energy Renewables Fort Worth GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY RENEWABLES SECURITY, LP By: Reliant Energy Renewables Security GP, LLC, its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer RELIANT ENERGY SHELBY COUNTY II, LP RELIANT ENERGY SHELBY COUNTY, LP By: Reliant Energy Shelby I, LP, each of its General Partner By: Reliant Energy Shelby Development Corp., its General Partner By: /s/ WILLIAM S. WALLER, JR. ---------------------------------------- Name: William S. Waller, Jr. Title: Vixx Xxxxxxxxx xxx Xxxxxurer 113 WILMINGTON TRUST COMPANY, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- JAMES J. MCGINLEY ------------------------ Name: Xxxxx X. Xxxxxx TitleJames J. McGinley Xxxxx: Assistant Vice President Xxxxxxxxxd Signatory SCHEDULE I SCHEDULE OF GUARANTORS The following schedule lists each Guarantor under the Indenture as of the date of the Indenture: Choctaw County Trust, a Delaware business trust GuideStreet, Inc., a Delaware corporation Hunterstown Trust, a Delaware business trust Insync Internet Services, Incorporated, a Texas corporation Reeves County Land Associates, LLC, a Delaware limited liability compaxx Xxliant Energy Arrow Canyon, LLC, a Delaware limited liability company Reliant Energy Atlantic, LLC, a Delaware limited liability company Reliant Energy Aurora Development, LLC, a Delaware limited liability company Reliant Energy Aurora Holding, LLC, a Delaware limited liability company Reliant Energy Aurora I, LP, a Delaware limited partnership Reliant Energy Aurora II, LP, a Delaware limited partnership Reliant Energy Aurora, XX, x Xxxaware limited partnership Reliant Energy Bighorn, LLC, a Delaware limited liability company Reliant Energy Broadband, Inc., a Delaware corporation Reliant Energy California Holdings, LLC, a Delaware limited liability company Reliant Energy CapTrades Holding Corp., a Delaware corporation Reliant Energy Choctaw County, LLC, a Mississippi limited liability company Reliant Energy Communications, Inc., a Delaware corporation Reliant Energy Construction, LLC, a Delaware limited liability company Reliant Energy Coolwater, Inc., a Delaware corporation Reliant Energy Customer Care Services, LLC, a Delaware limited liability company Reliant Energy Corporate Services, LLC, a Delaware limited liability company Reliant Energy Deer Park, Inc., a Delaware corporation Reliant Energy Desert Basin, LLC, a Delaware limited liability company Reliant Energy Development Services, Inc., a Delaware corporation Reliant Energy Electric Solutions, LLC, a Delaware limited liability company Reliant Energy Ellwood, Inc., a Delaware corporation Reliant Energy Equipment Company, LLC, a Nevada Limited liability company Reliant Energy Erie West, LLC, a Delaware limited liability company Reliant Energy Etiwanda, Inc., a Delaware corporation Reliant Energy Europe Trading & Marketing, Inc., a Delaware corporation Reliant Energy Florida Holdings, LLC, a Delaware limited liability company Reliant Energy Funding, LLC, a Delaware limited liability company Reliant Energy Gas Storage, LLC, a Delaware limited liability company Reliant Energy Gilbert, LLC, a Delaware limited liability company Reliant Energy Hunxxxxxxxn, LLC, a Delaware limited liability company Reliant Energy Indian River, LLC, a Delaware limited liability company Reliant Energy Key/Con Fuels, LLC, a Delaware limited liability company Reliant Energy Mandalay, Inc., a Delaware corporation Reliant Energy Mid-Atlantic Development, Inc., a Delaware corporation Reliant Energy Net Ventures, Inc., a Delaware corporation Reliant Energy New Smyrna Beach, LLC, a Delaware limited liability company Reliant Energy Northeast Generation, Inc., a Delaware corporation Reliant Energy Northeast Holdings, Inc., a Delaware corporation Reliant Energy Ormond Beach, Inc., a Delaware corporation Reliant Energy Osceola, LLC, a Delaware limited liability company Reliant Energy Partsco, LLC, a Delaware limited liability company Reliant Energy Portland, LLC, a Delaware limited liability company Reliant Energy Power Generation, Inc., a Delaware corporation Reliant Energy Power Operations I, Inc., a Delaware corporation Reliant Energy Power Operations II, Inc., a Delaware corporation Reliant Energy Renewables Atascocita GP, LLC, a Delaware limited liability company Reliant Energy Renewables Atascocita, LP, a Delaware limited partnership Reliant Energy Renewables Baytown GP, LLC, a Delaware limited liability company Reliant Energy Renewables Baytown, LP, a Delaware limited partnership Reliant Energy Renewables Blue Bonnet GP, LLC, a Delaware limited liability company Reliant Energy Renewables Blue Bonnet, LP, a Delaware limited partnership Reliant Energy Renewables Coastal Plains GP, LLC, a Delaware limited liability company Reliant Energy Renewables Coastal Plains, LP, a Delaware limited partnership Reliant Energy Renewables Conroe GP, LLC, a Delaware limited liability company Reliant Energy Renewables Conroe, LP, a Delaware limited partnership Reliant Energy Renewables Fort Worth GP, LLC, a Delaware limited liability company Reliant Energy Renewables Fort Worth, LP, a Delaware limited partnership Reliant Energy Renewables Holdings II, LLC, a Delaware limited liability company Reliant Energy Renewables Security GP, LLC, a Delaware limited liability company Reliant Energy Renewables Security, LP, a Delaware limited partnership Reliant Energy Renewables, Inc., a Delaware corporation Reliant Energy Retail Holdings, LLC, a Delaware limited liability company Reliant Energy Retail Services, LLC, a Delaware limited liability company Reliant Energy Sabine (Delaware), Inc., a Delaware corporation Reliant Energy Sabine (Texas), Inc., a Delaware corporation Reliant Energy Services Desert Basin, LLC, a Delaware limited liability company Reliant Energy Services International, Inc., a Delaware corporation Reliant Energy Services Mid-Stream, LLC, a Delaware limited liability company Reliant Energy Services New Mexico, LLC, a Delaware limited liability company Reliant Energy Services, Inc., a Delaware corporation Reliant Energy Seward, LLC, a Delaware limited liability company Reliant Energy Shelxx Xxxnty II, LP, a Delaware limited partnership Reliant Energy Shelby County, LP, a Delaware limited partnership Reliant Energy Shelby Development Corp., a Delaware corporation Reliant Energy Shelby Holding Corp., a Delaware corporation Reliant Energy Shelby I, LP, a Delaware limited partnership Reliant Energy Shelby II, LP, a Delaware limited partnership Reliant Energy Signal Pxxx, XXX, a Delaware limited liability company Reliant Energy Solutions, LLC, a Delaware limited liability company Reliant Energy Solutions California, Inc., a Delaware corporation Reliant Energy Solutions East, LLC, a Delaware limited liability company Reliant Energy Solutions Holdings, LLC, a Delaware limited liability company Reliant Energy Solutions West, LLC, a Delaware limited liability company Reliant Energy Titus, LLC, a Delaware limited liability company Reliant Energy Tradixx Xxchange, Inc., a Delaware corporation Reliant Energy Ventures, Inc., a Delaware corporation Reliant Energy Wholesale Service Company, a Delaware corporation Reliant Energy Winter Haven, LLC, a Delaware limited liability company Reliant Resources International Services, Inc., a Delaware corporation ReliantEnergy.com, Inc., a Delaware corporation Seward Trust, a Delawxxx xxxxxxxx xxxxt StarEn Power, LLC, a Delaware xxxxxed liability company Texas Star Energy Company, a Delaware corporation EXHIBIT A ([Face of Note) ] -------------------------------------------------------------------------------- CUSIP CUSIP/CINS ____________ 9.50% Senior Secured Notes due 2013 No. ___ $____________ RELIANT RESOURCES, INC. promises to pay to [CEDE & CO.] or registered assigns, the principal sum of ----------------------------------------------------------- Dollars on _____________, 20___. Interest Payment Dates: ____________ and ____________ Record Dates: ____________ and ____________ --------------------------------------------------------------------------------

Table of Contents, Headings, etc. The Table table of Contentscontents, Crosscross-Reference Table reference table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29April 13, 2005 L-3 COMMUNICATIONS CORPORATION By: 2004 MEMBERWORKS INCORPORATED By /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ --------------------------------- Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORSGuarantors: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS BILLING SERVICES INTERNATIONAL, INC. SHIP ANALYTICS USABEST BENEFITS, INC. SPD ELECTRICAL SYSTEMSIMPAC MARKETING CORP. XXXXXXXXXXXXXXXX.XXX, INC. SPD SWITCHGEAR COUNTRYWIDE DENTAL, INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS MEMBERWORKS CANADA LLC QUOTA PHONE, INC. WESCAM AIR OPS DISCOUNT DEVELOPMENT SERVICES, LLC WESCAM HOLDINGS (US) UNICARE, INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHXXXXXXXXX & COMPANY INC. MEMBERWORKS CANADA HOLDCO, INC.. LAVA LIFE CORP. INTERACTIVE MEDIA GROUP (USA) LTD. INTERACTIVE MEDIA CONSOLIDATED, as Guarantors By: INC. INTERACTIVE VOICE MEDIA BALTIMORE LLC INTERACTIVE VOICE MEDIA COLORADO LLC INTERACTIVE VOICE MEDIA GEORGIA LLC INTERACTIVE VOICE MEDIA MICHIGAN LLC INTERACTIVE VOICE MEDIA NEW JERSEY LLC INTERACTIVE VOICE MEDIA NEW YORK LLC INTERACTIVE VOICE MEDIA OHIO LLC INTERACTIVE VOICE MEDIA PENNSYLVANIA LLC LAVALIFE WASHINGTON DC LLC INTERACTIVE (TX) VOICE MEDIA CORP. INTERACTIVE LA VOICE MEDIA CORP. INTERACTIVE MEDIA (IL) CORP. INTERACTIVE MEDIA MO CORP. INTERACTIVE SJ VOICE MEDIA CORP. INTERACTIVE VOICE MEDIA (CA) CORP. INTERACTIVE VOICE MEDIA (MN) CORP. INTERACTIVE VOICE MEDIA (SACRAMENTO) CORP. XXXXXX HOLDING CORP. By /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- --------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE LASALLE BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: By /s/ Xxxxx X. Xxxxxx ---------------------------------------- --------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A [FORM OF FACE OF NOTE] [Global Note Legend] THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (Face of NoteAS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) -------------------------------------------------------------------------------- OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (I) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.06 OF THE INDENTURE, (II) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(c) OF THE INDENTURE, (III) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (IV) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF MEMBERWORKS INCORPORATED. [Private Placement Legend] THE NOTES EVIDENCED HEREBY HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933 (THE "SECURITIES ACT") AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT (A) (1) TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT PURCHASING FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (2) IN AN OFFSHORE TRANSACTION COMPLYING WITH RULE 903 OR RULE 904 OF REGULATION S UNDER THE SECURITIES ACT, (3) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT PROVIDED BY RULE 144 THEREUNDER (IF AVAILABLE), (4) TO AN INSTITUTIONAL ACCREDITED INVESTOR IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, (5) IN ACCORDANCE WITH ANOTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT (BASED UPON AN OPINION OF COUNSEL IF THE COMPANY SO REQUESTS) OR (6) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND (B) IN ACCORDANCE WITH ALL APPLICABLE BLUE SKY LAWS OF THE STATES OF THE UNITED STATES. [Definitive Securities Legend] IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL DELIVER TO THE REGISTRAR AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS SUCH TRANSFER AGENT MAY REASONABLY REQUIRE TO CONFIRM THAT THE TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS. CUSIP NO._______ ISIN________ No.__________________ $_________________ MemberWorks Incorporated, a Delaware corporation, promises to pay to [ ], or registered assigns, the principal sum of ______________ ($_______) on April 1, 2014.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 91 SIGNATURES Dated as of July 29September 23, 2005 L-3 COMMUNICATIONS CORPORATION 2010 LIFEPOINT HOSPITALS, INC. By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxxxxx Title: GUARANTORSExecutive Vice President and Chief Financial Officer Attest: APCOM/s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Chief Accounting Officer THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. By: /s/ Xxx Xxx Xxxxxx Name: Xxx Xxx Xxxxxx Title: Senior Associate Attest: /s/ Xxxxxxxx Xxxxx Authorized Signatory Date: September 23, 2010 [GUARANTOR SIGNATURES BEGIN ON FOLLOWING PAGE] ON BEHALF OF: AMERICA MANAGEMENT COMPANIES, LLC AMG-XXXXXXXX, LLC AMG-HILCREST, LLC AMG-HILLSIDE, LLC AMG-XXXXXXXXXX, LLC AMG-XXXXX, LLC AMG-SOUTHERN TENNESSEE, LLC AMG-TRINITY, LLC ANDALUSIA PHYSICIAN PRACTICES, LLC ASHLAND PHYSICIAN SERVICES, LLC ASHLEY VALLEY MEDICAL CENTER, LLC ASHLEY VALLEY PHYSICIAN PRACTICE, LLC ATHENS PHYSICIANS PRACTICE, LLC ATHENS REGIONAL MEDICAL CENTER, LLC XXXXXX MEDICAL CENTER, LLC BARTOW GENERAL PARTNER, LLC BARTOW MEMORIAL LIMITED PARTNER, LLC BOLIVAR PHYSICIAN PRACTICES, LLC BOURBON COMMUNITY HOSPITAL, LLC BOURBON PHYSICIAN PRACTICE, LLC BRIM HOSPITALS, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSBUFFALO TRACE RADIATION ONCOLOGY ASSOCIATES, LLC CARE HEALTH COMPANY, INC. XXXXXXXX CASTLEVIEW HOSPITAL, LLC CASTLEVIEW MEDICAL, LLC CASTLEVIEW PHYSICIAN PRACTICE, LLC CLINCH PROFESSIONAL PHYSICIAN SERVICES, LLC CLINCH VALLEY ENDOCRINOLOGY, LLC CLINCH VALLEY MEDICAL CENTER, INC. HYGIENETICS ENVIRONMENTAL CLINCH VALLEY PULMONOLOGY, LLC CLINCH VALLEY UROLOGY, LLC COLORADO PLAINS PHYSICIAN PRACTICES, LLC COMMUNITY HOSPITAL OF ANDALUSIA, INC. COMMUNITY MEDICAL, LLC COMMUNITY-BASED SERVICES, LLC XXXXXXXX HOSPITAL, LLC XXXXXXXX PHO, LLC DANVILLE DIAGNOSTIC IMAGING CENTER, LLC DANVILLE PHYSICIAN PRACTICES, LLC DANVILLE REGIONAL MEDICAL CENTER SCHOOL OF HEALTH PROFESSIONS, LLC DANVILLE REGIONAL MEDICAL CENTER, LLC DODGE CITY HEALTHCARE PARTNER, INC. GEORGETOWN COMMUNITY HOSPITAL, LLC GEORGETOWN REHABILITATION, LLC XXXXX VALLEY HOSPITAL, LLC XXXXXXXX HOSPITAL, LLC HCK XXXXX MEMORIAL, LLC HDP ANDALUSIA, LLC HDP GEORGETOWN, LLC HILLSIDE HOSPITAL, LLC HISTORIC LIFEPOINT HOSPITALS, INC. HRMC, LLC HST PHYSICIAN PRACTICE, LLC HTI GEORGETOWN, LLC HTI PINELAKE, LLC HURRICANE HEALTHCARE PARTNER, LLC INTEGRATED PHYSICIAN SERVICES, LLC KANSAS HEALTHCARE MANAGEMENT COMPANY, INC. KANSAS HEALTHCARE MANAGEMENT SERVICES, LLC KENTUCKY HOSPITAL, LLC KENTUCKY MEDSERV, LLC KENTUCKY MSO, LLC KENTUCKY PHYSICIAN SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSLAKE CUMBERLAND CARDIOLOGY ASSOCIATES, LLC LAKE CUMBERLAND PHYSICIAN PRACTICES, LLC LAKE CUMBERLAND REGIONAL HOSPITAL, LLC LAKE CUMBERLAND REGIONAL PHYSICIAN HOSPITAL ORGANIZATION, LLC LAKELAND COMMUNITY HOSPITAL, LLC LAKELAND PHYSICIAN PRACTICES, LLC LANDER VALLEY AMBULATORY SURGERY CENTER, LLC LANDER VALLEY MEDICAL CENTER, LLC LANDER VALLEY PHYSICIAN PRACTICES, LLC LAS CRUCES PHYSICIAN PRACTICES, LLC LCMC MRI, LLC LCMC PET, LLC LHSC, LLC LIFEPOINT ACQUISITION CORP. LIFEPOINT BILLING SERVICES, LLC LIFEPOINT CSGP, LLC LIFEPOINT CSLP, LLC LIFEPOINT HOLDINGS 2, LLC LIFEPOINT HOLDINGS 3, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE LIFEPOINT HOSPITALS HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSILIFEPOINT MEDICAL GROUP — HILLSIDE, INC LIFEPOINT OF GAGP, LLC LIFEPOINT OF KENTUCKY, LLC LIFEPOINT OF LAKE CUMBERLAND, LLC LIFEPOINT RC, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESLIFEPOINT VA HOLDINGS, INC. L-3 COMMUNICATIONS ESSCOLIFEPOINT WV HOLDINGS, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION XXXXXXXXXX REGIONAL HOSPITAL, LLC L-3 COMMUNICATIONS FLIGHT CAPITAL XXXXX GENERAL HOSPITAL, LLC L-3 COMMUNICATIONS GOVERNMENT SERVICESXXXXX HEALTHCARE PARTNER, LLC XXXXX MEDICAL, LLC XXXXX MEMORIAL HOSPITAL, LLC XXXXX PHYSICIAN PRACTICE, LLC LOS ALAMOS PHYSICIAN PRACTICES, LLC MARTINSVILLE PHYSICIAN PRACTICES, LLC MEADOWVIEW PHYSICIAN PRACTICE, LLC MEADOWVIEW REGIONAL MEDICAL CENTER, LLC MEADOWVIEW RIGHTS, LLC MEMORIAL HOSPITAL OF MARTINSVILLE & XXXXX COUNTY AMBULATORY SURGERY CENTER, LLC MEXIA-PRINCIPAL, INC. L-3 COMMUNICATIONS ILEX SYSTEMSMINDEN PHYSICIAN PRACTICES, LLC NORTHEASTERN NEVADA PHYSICIAN PRACTICES, LLC NORTHWEST MEDICAL CENTER-WINFIELD, LLC NWMC-WINFIELD PHYSICIAN PRACTICES, LLC OHIO HOSPITAL, LLC OPELOUSAS IMAGING CENTER PARTNER, LLC OPELOUSAS PET/CT IMAGING CENTER, LLC ORTHOPEDICS OF SOUTHWEST VIRGINIA, LLC PALESTINE-PRINCIPAL G.P., INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESPHC HOSPITALS, LLC PHC-AVIATION, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILEPHC-VISIONBELLE GLADE, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSPHC-CLEVELAND, INC. L-3 COMMUNICATIONS SONOMA EOPHC-DOCTORS’ HOSPITAL, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRIPHC-ELKO, INC. PAC ORD INC. POWER PARAGONPHC-FORT MOHAVE, INC. SHIP ANALYTICSPHC-FORT XXXXXX, INC. SHIP ANALYTICS INTERNATIONALPHC-INDIANA, INC. SHIP ANALYTICS USAPHC-XXXX, INC. SPD ELECTRICAL SYSTEMSPHC-LAKE HAVASU, INC. SPD SWITCHGEAR PHC-LAKEWOOD, INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS PHC-LAS CRUCES, INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) PHC-LOS ALAMOS, INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHPHC-LOUISIANA, INC.. PHC-MARTINSVILLE, as Guarantors ByINC. PHC-MINDEN G.P., INC. PHC-MORGAN LAKE, INC. PHC-PALESTINE, INC. PHC-SELMA, LLC PHC-TENNESSEE, INC. PINELAKE PHYSICIAN PRACTICE, LLC PINELAKE REGIONAL HOSPITAL, LLC XXXXXXX PRACTICE, LLC PRHC-ALABAMA, LLC PRHC-XXXXX X.X., INC. PRINCIPAL HOSPITAL COMPANY OF NEVADA, INC. PRINCIPAL XXXX, L.L.C. PRINCIPAL-NEEDLES, INC. PROVINCE HEALTHCARE COMPANY XXXXXX AMBULATORY SURGERY CENTER, LLC XXXXXX COMMUNITY MEDICAL CENTER, LLC XXXXXX PHYSICIAN PRACTICES, LLC R. XXXXXXX XXXXX PRACTICE, LLC RALEIGH GENERAL HOSPITAL, LLC RIVER PARISHES HOLDINGS, LLC RIVER PARISHES HOSPITAL, LLC RIVER PARISHES PARTNER, LLC RIVER PARISHES PHYSICIAN PRACTICES, LLC RIVERTON AMBULATORY SURGERY CENTER, LLC RIVERTON MEMORIAL HOSPITAL, LLC RIVERTON ONCOLOGY PRACTICE, LLC RIVERTON PHYSICIAN PRACTICES, LLC RIVERVIEW MEDICAL CENTER, LLC ROCKDALE HOSPITAL, LLC ROCKDALE PHYSICIAN PRACTICES, LLC RUSSELLVILLE HOSPITAL, LLC RUSSELLVILLE PHYSICIAN PRACTICES, LLC SELECT HEALTHCARE, LLC SELMA DIAGNOSTIC IMAGING, LLC SILETCHNIK PRACTICE, LLC XXXXX COUNTY MEMORIAL HOSPITAL, LLC SOMERSET SURGERY PARTNER, LLC SOUTHERN TENNESSEE EMS, LLC SOUTHERN TENNESSEE MEDICAL CENTER, LLC SOUTHERN TENNESSEE PHO, LLC SPRING VIEW HOSPITAL, LLC SPRING VIEW PHYSICIAN PRACTICES, LLC SPRINGHILL MEDICAL CENTER, LLC XXXXXX PHYSICIAN PRACTICES, LLC XXXXXX PHYSICIAN PRACTICES, LLC XXXXXX REAL ESTATE HOLDINGS, LLC XXXXXX REGIONAL MEDICAL CENTER, LLC TEXAS SPECIALTY PHYSICIANS THE MRI CENTER OF NORTHWEST ALABAMA, LLC THM PHYSICIAN PRACTICE, LLC XXXXXXXXX MEDICAL CENTER, LLC VALLEY VIEW PHYSICIAN PRACTICES, LLC XXXXXXX PHYSICIAN PRACTICES, LLC VILLE PLATTE MEDICAL CENTER, LLC VILLE PLATTE PHYSICIAN PRACTICES, LLC WEST VIRGINIA MANAGEMENT SERVICES ORGANIZATION, INC. WESTERN PLAINS PHYSICIAN PRACTICES, LLC WESTERN PLAINS REGIONAL HOSPITAL, LLC WOODFORD HOSPITAL, LLC WYOMING HOLDINGS, LLC WYTHE COUNTY COMMUNITY HOSPITAL, LLC WYTHE COUNTY PHYSICIAN PRACTICES, LLC ZONE, INCORPORATED /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: LIFEPOINT ASSET MANAGEMENT COMPANY, INC. /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxx Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor ByOn Behalf of: L-3 COMMUNICATIONS AIS GP CORPORATIONBARTOW HEALTHCARE SYSTEM, LTD. Bartow General Partner, LLC, as General Partner By: general partner /s/ Xxxxxxxxxxx Xxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxxx Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Senior Vice President EXHIBIT A (Face and Treasurer Bartow Memorial Limited Partner, LLC, as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: XXXXX SURGERY CENTER, LP Northwest Medical Center-Winfield, LLC, as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: LIFEPOINT CORPORATE SERVICES GENERAL PARTNERSHIP LifePoint CSLP, LLC, as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer LifePoint CSGP, LLC, as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: LIFEPOINT OF GEORGIA, LIMITED PARTNERSHIP LifePoint Hospitals Holdings, Inc., as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer LifePoint of Note) -------------------------------------------------------------------------------- CUSIP _____GAGP, LLC, as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: MEXIA PRINCIPAL HEALTHCARE LIMITED PARTNERSHIP Mexia-Principal, Inc., as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer Principal Hospital Company of Nevada, Inc., as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: PALESTINE PRINCIPAL HEALTHCARE LIMITED PARTNERSHIP Palestine Principal G.P., Inc., as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer Principal Hospital Company of Nevada, Inc., as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: PHC-ASHLAND, L.P. PHC-Tennessee, Inc., as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer Principal Hospital Company of Nevada, Inc., as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: PHC-CHARLESTOWN, L.P. PHC-Indiana, Inc., as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer PHC Hospitals, LLC, as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: PHC-MINDEN, L.P. PHC-Minden G.P., Inc., as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer PHC-Louisiana, Inc., as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: PHC-XXXXXX CITY, L.P. PHC-Lakewood, Inc., as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer PHC-Morgan Lake, Inc, as limited partner. /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: PHC-OPELOUSAS, L.P. PHC-Doctors’ Hospital, Inc., as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer PHC-Louisiana, Inc., as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: PRHC-XXXXX, X.X. PRHC-Xxxxx X.X., Inc., as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer Principal Hospital Company of Nevada, Inc., as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer On Behalf of: PRINCIPAL XXXX, X.X. PHC-Xxxx, Inc., as general partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer Province Healthcare Company, as limited partner /s/ Xxxxxxx X. Xxxxxx Name: Xxxxxxx X. Xxxxxx Title: Senior Vice President and Treasurer SCHEDULE I America Management Companies, LLC AMG-Xxxxxxxx, LLC AMG-Hilcrest, LLC AMG-Hillside, LLC AMG-Xxxxxxxxxx, LLC AMG-Xxxxx, LLC AMG-Southern Tennessee, LLC AMG-Trinity, LLC Andalusia Physician Practices, LLC Ashland Physician Services, LLC Ashley Valley Medical Center, LLC Ashley Valley Physician Practice, LLC Athens Physicians Practice, LLC Athens Regional Medical Center, LLC Xxxxxx Medical Center, LLC Bartow General Partner, LLC Bartow Healthcare System, Ltd. Bartow Memorial Limited Partner, LLC Bolivar Physician Practices, LLC Bourbon Community Hospital, LLC Bourbon Physician Practice, LLC Brim Hospitals, Inc. Buffalo Trace Radiation Oncology Associates, LLC Care Health Company, Inc. Castleview Hospital, LLC Castleview Medical, LLC Castleview Physician Practice, LLC Clinch Professional Physician Services, LLC Clinch Valley Endocrinology, LLC Clinch Valley Medical Center, Inc. Clinch Valley Pulmonology, LLC Clinch Valley Urology, LLC Colorado Plains Physician Practices, LLC Community Hospital of Andalusia, Inc. Community Medical, LLC Community-Based Services, LLC Xxxxxxxx Hospital, LLC Xxxxxxxx PHO, LLC Danville Diagnostic Imaging Center, LLC Danville Physician Practices, LLC Danville Regional Medical Center School of Health Professions, LLC Danville Regional Medical Center, LLC Dodge City Healthcare Partner, Inc. Georgetown Community Hospital, LLC Georgetown Rehabilitation, LLC Xxxxx Valley Hospital, LLC Xxxxxxxx Hospital, LLC HCK Xxxxx Memorial, LLC HDP Andalusia, LLC HDP Georgetown, LLC Hillside Hospital, LLC Historic LifePoint Hospitals, Inc. HRMC, LLC HST Physician Practice, LLC HTI Georgetown, LLC HTI PineLake, LLC Hurricane Healthcare Partner, LLC Integrated Physician Services, LLC Kansas Healthcare Management Company, Inc. Kansas Healthcare Management Services, LLC Kentucky Hospital, LLC Kentucky Medserv, LLC Kentucky MSO, LLC Kentucky Physician Services, Inc. Lake Cumberland Cardiology Associates, LLC Lake Cumberland Physician Practices, LLC Lake Cumberland Regional Hospital, LLC Lake Cumberland Regional Physician Hospital Organization, LLC Lakeland Community Hospital, LLC Lakeland Physician Practices, LLC Xxxxx Surgery Center, XX Xxxxxx Valley Ambulatory Surgery Center, LLC Lander Valley Medical Center, LLC Lander Valley Physician Practices, LLC Las Cruces Physician Practices, LLC LCMC MRI, LLC LCMC PET, LLC LHSC, LLC LifePoint Acquisition Corp. LifePoint Asset Management Company, Inc. LifePoint Billing Services, LLC LifePoint Corporate Services General Partnership LifePoint CSGP, LLC LifePoint CSLP, LLC LifePoint Holdings 2, LLC LifePoint Holdings 3, Inc. LifePoint Hospitals Holdings, Inc. LifePoint Medical Group — Hillside, Inc LifePoint of GAGP, LLC LifePoint of Georgia, Limited Partnership LifePoint of Kentucky, LLC LifePoint of Lake Cumberland, LLC LifePoint RC, Inc. LifePoint VA Holdings, Inc. LifePoint WV Holdings, Inc. Xxxxxxxxxx Regional Hospital, LLC Xxxxx General Hospital, LLC Xxxxx Healthcare Partner, LLC Xxxxx Medical, LLC Xxxxx Memorial Hospital, LLC Xxxxx Physician Practice, LLC Los Alamos Physician Practices, LLC Martinsville Physician Practices, LLC Meadowview Physician Practice, LLC Meadowview Regional Medical Center, LLC Meadowview Rights, LLC Memorial Hospital of Martinsville & Xxxxx County Ambulatory Surgery Center, LLC Mexia Principal Healthcare Limited Partnership Mexia-Principal, Inc. Minden Physician Practices, LLC Northeastern Nevada Physician Practices, LLC Northwest Medical Center-Winfield, LLC NWMC-Winfield Physician Practices, LLC Ohio Hospital, LLC Opelousas Imaging Center Partner, LLC Opelousas PET/CT Imaging Center, LLC Orthopedics of Southwest Virginia, LLC Palestine Principal Healthcare Limited Partnership Palestine-Principal G.P., Inc. PHC Hospitals, LLC PHC-Ashland, L.P. PHC-Aviation, Inc. PHC-Belle Glade, Inc. PHC-Charlestown, L.P. PHC-Cleveland, Inc. PHC-Doctors’ Hospital, Inc. PHC-Elko, Inc. PHC-Fort Mohave, Inc. PHC-Fort Xxxxxx, Inc. PHC-Indiana, Inc. PHC-Xxxx, Inc. PHC-Lake Havasu, Inc. PHC-Lakewood, Inc. PHC-Las Cruces, Inc. PHC-Los Alamos, Inc. PHC-Louisiana, Inc. PHC-Martinsville, Inc. PHC-Minden G.P., Inc. PHC-Minden, L. P. PHC-Xxxxxx City, L.P. PHC-Morgan Lake, Inc. PHC-Opelousas, L.P. PHC-Palestine, Inc. PHC-Selma, LLC PHC-Tennessee, Inc. PineLake Physician Practice, LLC PineLake Regional Hospital, LLC Xxxxxxx Practice, LLC PRHC-Alabama, LLC PRHC-Xxxxx X.X., Inc. PRHC-Xxxxx, X.X. Principal Hospital Company of Nevada, Inc. Principal Xxxx, L.L.C. Principal Xxxx, X.X. Principal-Needles, Inc. Province Healthcare Company Xxxxxx Ambulatory Surgery Center, LLC Xxxxxx Community Medical Center, LLC Xxxxxx Physician Practices, LLC

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 85 SIGNATURES Dated as of July 29October 30, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM2003 DRS TECHNOLOGIES, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSBy: --------------------------------------- Name: Title: NAI TECHNOLOGIES, INC. XXXXXXXX DRS ELECTRONIC SYSTEMS, INC. HYGIENETICS ENVIRONMENTAL DRS SURVEILLANCE SUPPORT SYSTEMS, INC. DRS TECHNICAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSDRS POWER & CONTROL TECHNOLOGIES, INC. L-3 COMMUNICATIONS AEROMETDRS ELECTRIC POWER TECHNOLOGIES, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS DRS POWER TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS PARAVANT INC. DRS TACTICAL SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGSDRS TACTICAL SYSTEMS (WEST), INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIDRS ENGINEERING DEVELOPMENT LABS, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON DRS SIGNAL TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCODRS SIGNAL RECORDING TECHNOLOGIES, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICESDRS SYSTEMS MANAGEMENT CORPORATION DRS OPTRONICS, INC. L-3 COMMUNICATIONS ILEX DRS SENSORS & TARGETING SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION DRS NYTECH IMAGING SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EODRS FPA, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRIDRS INFRARED TECHNOLOGIES, L.P. DRS UNMANNED TECHNOLOGIES, INC. PAC ORD INC. POWER PARAGONDRS DATA & IMAGING SYSTEMS, INC. SHIP ANALYTICSDRS TECHNOLOGIES CANADA, INC. SHIP ANALYTICS DRS COMMUNICATIONS COMPANY L.L.C. DRS SYSTEMS, INC. DRS NEWCO III, INC. MMC3 CORPORATION DRS INTERNATIONAL, INC. SHIP ANALYTICS USABy: --------------------------------------- Name: Title: THE BANK OF NEW YORK By: --------------------------------------- Name: Title: EXHIBIT A [Face of Note] CUSIP/CINS ____________ 6 7/8% Senior Subordinated Notes due 2013 No. ___ $____________ DRS TECHNOLOGIES, INC. SPD ELECTRICAL SYSTEMSpromises to pay to [________] or registered assigns, the principal sum of _________________________________________________DOLLARS on _____________, 20___. Interest Payment Dates: ____________ and ____________ Record Dates: ____________ and ____________ Dated: _______________, 200_ DRS TECHNOLOGIES, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- --------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor ByThis is one of the Notes referred to in the within-mentioned Indenture: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face ------------------------------------ Authorized Signatory A-1 Back of Note) -------------------------------------------------------------------------------- CUSIP _____Note 6 7/8% Senior Subordinated Notes due 2013 [INSERT THE GLOBAL NOTE LEGEND, IF APPLICABLE PURSUANT TO THE PROVISIONS OF THE INDENTURE] [INSERT THE PRIVATE PLACEMENT LEGEND, IF APPLICABLE PURSUANT TO THE PROVISIONS OF THE INDENTURE] [INSERT THE UNIT LEGEND, IF APPLICABLE PURSUANT TO THE PROVISIONS OF THE INDENTURE] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29June 20, 2005 L-3 COMMUNICATIONS 2002 METALDYNE CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ R. XXXXXXX XXXXXXX ----------------------------------- Name: R. Xxxxxxx X. Xxxxxxxxx Xxxxxxx Title: GUARANTORSSecretary EACH OF THE GUARANTORS LISTED ON SCHEDULE I HERETO: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- R. XXXXXXX XXXXXXX ----------------------------------- Name: Xxxxxxxxxxx X. R. Xxxxxxx Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- XXXX XXXXXXXX ------------------------------------ Name: Xxxxx X. Xxxxxx Xxxx XxXxxxxx Title: Assistant Vice President SCHEDULE I SCHEDULE OF GUARANTORS The following schedule list each Guarantor under the Indenture as of the date of the Indenture: ER Acquisition Corp. GMTI Holding Company Halyard Aviation Services, Inc. MASG Disposition, Inc. MASX Energy Services Group, Inc. Metaldyne Accura Tool & Mold, Inc. Metaldyne Company LLC Metaldyne DuPage Die Casting Corporation Metaldyne Europe, Inc. Metaldyne European Holdings Inc. Metaldyne Xxxxxx Precision Die Casting, Inc. Metaldyne Light Metals Company, Inc. Metaldyne Machining and Assembly Company, Inc. Metaldyne Precision Forming-Fort Xxxxx, Inc. Metaldyne Services, Inc. Metaldyne Sintered Components of Indiana, Inc. Metaldyne Sintered Components, Inc. Metaldyne Tubular Products, Inc. Metaldyne U.S. Holding Co. Precision Headed Products, Inc. Punchcraft Company Xxxxx International, Inc. X.X. XxXxxxx & Co. Windfall Products, Inc. Windfall Specialty Powders, Inc. WIPCO, Inc. EXHIBIT A ([Face of Note) ] -------------------------------------------------------------------------------- CUSIP _____CUSIP/CINS ------------- 11% [Series A] [Series B] Senior Subordinated Notes due 2012 No. $ ------- ------------- METALDYNE CORPORATION promises to pay to CEDE & CO. ---------- or registered assigns, the principal sum of ----------------------------------------------------------- Dollars on June 15, 2012. Interest Payment Dates: June 15 and December 15 Record Dates: June 1 and December 1 Dated: June 20, 2002 METALDYNE CORPORATION By: ------------------------------------- Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: THE BANK OF NEW YORK, as Trustee By: ------------------------------------ Authorized Signatory -------------------------------------------------------------------------------- [Back of Note] 11% [Series A] [Series B] Senior Subordinated Notes due 2012 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 111 SIGNATURES Dated as of July 29June 22, 2005 L-3 COMMUNICATIONS 2004 IASIS HEALTHCARE LLC By: /s/ W. Xxxx Xxxxxxx ----------------------------------- Name: W. Xxxx Xxxxxxx Title: Chief Financial Officer IASIS CAPITAL CORPORATION By: /s/ W. Xxxx Xxxxxxx X. Xxxxxxxxx ------------------------------------ ----------------------------------- Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. W. Xxxx Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor Chief Financial Officer MEMORIAL HOSPITAL OF TAMPA, LP MESA GENERAL HOSPITAL, LP PALMS OF PASADENA HOSPITAL, LP SOUTHWEST GENERAL HOSPITAL, LP ST. LUKE'S BEHAVIORAL HOSPITAL, LP ST. LUKE'S MEDICAL CENTER, LP TEMPE ST. LUKE'S HOSPITAL, LP TOWN & COUNTRY HOSPITAL, LP By: L-3 COMMUNICATIONS AIS GP CORPORATIONIASIS Healthcare Holdings, Inc., as General Partner By: /s/ Xxxxxxxxxxx Xxxxx X. Xxxxxxx ---------------------------------------- Xxxxx ------------------------------- Name: Xxxxxxxxxxx Xxxxx X. Xxxxxxx Xxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee Secretary SEABOARD DEVELOPMENT LLC By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Xxxxx ----------------------------------- Name: Xxxxx X. Xxxxx Title: Secretary INDENTURE ARIZONA DIAGNOSTIC & SURGICAL CENTER, INC. BROOKWOOD DIAGNOSTIC CENTER OF TAMPA, INC. IASIS PHYSICIAN SERVICES, INC. CLINICARE OF TEXAS, INC. IASIS HOME INFUSION AND MEDICAL EQUIPMENT, INC. IASIS TRANSCO, INC. MCS/AZ, INC. PALMS OF PASADENA HOMECARE, INC. TAMPA BAY STAFFING SOLUTIONS, INC. BAPTIST JOINT VENTURE HOLDINGS, INC. BEAUMONT HOSPITAL HOLDINGS, INC. BILTMORE SURGERY CENTER HOLDINGS, INC. CLINICARE OF UTAH, INC. XXXXX HOSPITAL HOLDINGS, INC. XXXXX SURGICAL CENTER HOLDINGS, INC. FIRST CHOICE PHYSICIANS NETWORK HOLDINGS, INC. IASIS FINANCE, INC. IASIS HEALTHCARE HOLDINGS, INC. IASIS HOSPITAL NURSE STAFFING COMPANY IASIS MANAGEMENT COMPANY JORDAN VALLEY HOSPITAL HOLDINGS, INC. METRO AMBULATORY SURGERY CENTER, INC. PIONEER VALLEY HEALTH PLAN, INC. PIONEER VALLEY HOSPITAL, INC. ROCKY MOUNTAIN MEDICAL CENTER, INC. SALT LAKE REGIONAL MEDICAL CENTER, INC. SOUTHRIDGE PLAZA HOLDINGS, INC. SSJ ST. PETERSBURG HOLDINGS, INC. BILTMORE SURGERY CENTER, INC. NORTH VISTA HOSPITAL, INC. By: /s/ Xxxxx Xxxxx --------------------------------- Name: Xxxxx X. Xxxxx Title: Secretary THE BANK OF NEW YORK TRUST COMPANY, N.A., AS TRUSTEE By: /s/ Xxxxxxxxx X. Xxxxxx --------------------------------- Name: Xxxxxxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (A1 [Face of Note) -------------------------------------------------------------------------------- CUSIP ] CUSIP/CINS ___________ 8 3/4% Senior Subordinated Notes due 2014 No. ___ $____________ IASIS HEALTHCARE LLC IASIS CAPITAL CORPORATION promises to pay to____________________ or registered assigns, the principal sum of ________________________________________________ DOLLARS on June 15, 2014.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 134 SIGNATURES Dated as of July 29October 19, 2005 L-3 COMMUNICATIONS CORPORATION 2009 ISSUERS: WYNN LAS VEGAS, LLC, a Nevada limited liability company By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation, By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxx Xxxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer Indenture GUARANTORS: APCOMKEVYN, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSLLC, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors a Nevada limited liability company By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /a/ Xxxx Xxxxxx Name: Xxxxxxxxxxx X. Xxxxxxx Xxxx Xxxxxx Title: Vice President Chief Financial Officer and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor Treasurer LAS VEGAS JET, LLC, a Nevada limited liability company By: L-3 COMMUNICATIONS AIS GP CORPORATIONWynn Las Vegas, as General Partner LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxx Xxxxxx Name: Xxxxxxxxxxx X. Xxxxxxx Xxxx Xxxxxx Title: Authorized Person THE Chief Financial Officer and Treasurer Indenture WORLD TRAVEL, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer XXXX GOLF, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer Indenture XXXX SHOW PERFORMERS, LLC, a Nevada limited liability company By: Xxxx Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer XXXX SUNRISE, LLC, a Nevada limited liability company By: Wynn Las Vegas, LLC, a Nevada limited liability company, its sole member By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx Title: Chief Financial Officer and Treasurer Indenture U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Xxxxxxx Xxxxxxxx Name: Xxxxx X. Xxxxxx Xxxxxxx Xxxxxxxx Title: Assistant Vice President Indenture EXHIBIT A (A-1 [Face of Note] CUSIP/CINS 983130 AL9 7.875% [Series A] [Series B] First Mortgage Notes due 2017 No. $ XXXX LAS VEGAS, LLC XXXX LAS VEGAS CAPITAL CORP. promise to pay to or registered assigns, the principal sum of DOLLARS on November 1, 2017. Interest Payment Dates: May 1 and November 1 Record Dates: April 15 and October 15 Dated: October 19, 2009 XXXX LAS VEGAS, LLC, a Nevada limited liability company By: Xxxx Resorts Holdings, LLC, a Nevada limited liability company, its sole member By: Wynn Resorts, Limited, a Nevada corporation, its sole member By: Name: Title: By: Name: Title: WYNN LAS VEGAS CAPITAL CORP., a Nevada corporation By: Name: Title: By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: U.S. BANK NATIONAL ASSOCIATION, as Trustee By: Authorized Signatory [Back of Note] 7.875% [Series A] [Series B] First Mortgage Notes due 2017 [Insert the Private Placement Legend, if applicable, pursuant to Section 2.06(g)(1) -------------------------------------------------------------------------------- CUSIP _____of the Indenture] [Insert the Global Notes Legend, if applicable, pursuant to Section 2.06(g)(2) of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29June 6, 2005 L-3 COMMUNICATIONS 2002 TRIMAS CORPORATION By: /s/ R. Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxxxx ----------------------------------- Name: R. Xxxxxxx X. Xxxxxxxxx Xxxxxxx Title: GUARANTORSSecretary EACH OF THE GUARANTORS LISTED ON SCHEDULE I HERETO: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. R. Xxxxxxx ---------------------------------------- Xxxxxxx ----------------------------------- Name: Xxxxxxxxxxx X. R. Xxxxxxx Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor ByEACH OF THE GUARANTORS LISTED ON SCHEDULE II HERETO: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx Xxxx X. Xxxxxxx ---------------------------------------- Xxxxxx ----------------------------------- Name: Xxxxxxxxxxx Xxxx X. Xxxxxxx Xxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Illegible ----------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face SCHEDULE I SCHEDULE OF GUARANTORS The following schedules list each Guarantor under the Indenture as of Note) -------------------------------------------------------------------------------- CUSIP _____the date of the Indenture: Arrow Engine Company Commonwealth Industries LLC Compac Corporation Consumer Products, Inc Cuyam Corporation Di-Rite Company Draw-Tite, Inc. Entegra Fastener Corporation Xxxxxx Performance Products, Inc. Hitch 'N Post, Inc. Keo Cutters, Inc. K.S. Disposition, Inc. Lake Erie Screw Corporation Monogram Aerospace Fasteners, Inc. Netcong Investments, Inc. NI Foreign Military Sales Corp. NI Industries, Inc. NI West, Inc. Xxxxxx Cylinder Company Xxxxxx Environmental Services, Inc. Xxxxxx Industries, Inc. Plastic Form, Inc. Xxxxx Products, Inc. Xxxxx Spline Products, Inc. Xxxxxxxx Micro-Tool, Inc. Xxxxx Corporation Xxxxx Leasing Co., Incorporated Xxxxx of Indiana, Inc. Xxxxx of Mexico, Inc. TriMas Company LLC TriMas Fasteners, Inc. TriMas Services Corp. Wesbar Corporation SCHEDULE II Beaumont Bolt & Gasket, Inc. Industrial Bolt & Gasket, Inc. Xxxxxx Metal Gasket Co. Louisiana Hose & Rubber Co.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pagespage] SIGNATURES Dated as of July 29April 17, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON 2002 SYNAGRO TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- XX --------------------------------------------------- Name: Xxxxx X. Xxxxxx XX Title: Assistant Executive Vice President and Secretary SYNAGRO MIDWEST, INC., SYNAGRO OF MICHIGAN, INC., SYNAGRO OF WISCONSIN, INC., SYNAGRO OF MINNESOTA - XXXXXXX, INC., SYNAGRO MIDWEST - ENVIROLAND, INC., SYNAGRO SOUTHWEST, INC., SYNAGRO OF TEXAS-CDR, INC., SYNAGRO OF TEXAS-VITAL-CYCLE, INC., SYNAGRO SOUTHEAST, INC., SYNAGRO OF NORTH CAROLINA-EWR, INC., SYNAGRO OF NORTH CAROLINA-AMSCO, INC., SYNAGRO OF FLORIDA - A&J, INC., SYNAGRO OF FLORIDA - ANTI-POLLUTION, INC., SYNAGRO OF FLORIDA - XXXXX WATER, INC., SYNAGRO OF FLORIDA - ECOSYSTEMS, INC., SYNAGRO NORTHEAST, INC., COMPOSTING CORPORATION OF AMERICA, ORGANI-GRO, INC., ST INTERCO, INC., ENVIRONMENTAL PROTECTION & IMPROVEMENT COMPANY, INC., SYNAGRO MID-ATLANTIC, INC., SYNAGRO WEST, INC., SYNAGRO COMPOSTING COMPANY OF CALIFORNIA, INC., SYNAGRO OF CALIFORNIA, INC., NEW ENGLAND TREATMENT COMPANY, INC., FAIRHAVEN RESIDUAL SYSTEMS, INC., NETCO-CONNECTICUT, INC., NETCO-RESIDUALS MANAGEMENT SYSTEMS, INC., NETCO-WATERBURY SYSTEMS, INC., F/K/A NETCO-WATERBURY, INC., NEW HAVEN RESIDUALS SYSTEMS, INC., RESIDUAL TECHNOLOGIES SYSTEMS, INC., RESIDUALS PROCESSING, INC., FUTURE - TECH ENVIRONMENTAL SERVICES, INC., SYNAGRO - WWT, INC., SOARING VISTA PROPERTIES, INC., NYOFCO HOLDINGS, INC., SYNAGRO - WCWNJ, INC., SYNAGRO - BALTIMORE, L.L.C., SYNAGRO DIGESTION, INC., AND 84 SYNAGRO TEXAS, INC. By: /s/ Xxxxx X. Xxxxxx XX --------------------------------------------------- Name: Xxxxx X. Xxxxxx XX Title: Secretary RESIDUAL TECHNOLOGIES, LIMITED PARTNERSHIP By Residuals Technologies Systems, Inc., its general partner By: /s/ Xxxxx X. Xxxxxx XX --------------------------------------------------- Name: Xxxxx X. Xxxxxx XX Title: Secretary FAIRHAVEN RESIDUALS, LIMITED PARTNERSHIP By Fairhaven Residuals Systems, Inc., its general partner By: /s/ Xxxxx X. Xxxxxx XX --------------------------------------------------- Name: Xxxxx X. Xxxxxx XX Title: Secretary NETCO-WATERBURY, LIMITED PARTNERSHIP By NETCO-Waterbury Systems, Inc., its general partner By: /s/ Xxxxx X. Xxxxxx XX --------------------------------------------------- Name: Xxxxx X. Xxxxxx XX Title: Secretary NETCO-RESIDUALS MANAGEMENT, LIMITED PARTNERSHIP By NETCO-Residuals Management Systems, Inc, its general partner By: /s/ Xxxxx X. Xxxxxx XX --------------------------------------------------- Name: Xxxxx X. Xxxxxx XX Title: Secretary NEW HAVEN RESIDUALS, LIMITED PARTNERSHIP By New Haven Residuals Systems, Inc., its general partner By: /s/ Xxxxx X. Xxxxxx XX --------------------------------------------------- Name: Xxxxx X. Xxxxxx XX Title: Secretary 85 PROVIDENCE SOILS, LLC By: /s/ Xxxxx X. Xxxxxx XX --------------------------------------------------- Xxxxx X. Xxxxxx XX, Manager SYNAGRO MANAGEMENT, L.P. By Synagro Texas, Inc., its general partner By: /s/ Xxxxx X. Xxxxxx XX --------------------------------------------------- Name: Xxxxx X. Xxxxxx XX Title: Secretary NEW YORK ORGANIC FERTILIZER COMPANY By Synagro - WWT, Inc., its general partner By: /s/ Xxxxx X. Xxxxxx XX --------------------------------------------------- Name: Xxxxx X. Xxxxxx XX Title: Secretary ATLANTA RESIDUALS COMPANY, LLC By: /s/ Xxxx Rome --------------------------------------------------- Name: Xxxx Rome Title: Vice-President SYNAGRO DELAWARE, INC. By: /s/ Xxxx X. XxXxxxxxx --------------------------------------------------- Name: Xxxx X. XxXxxxxxx Title: Secretary XXXXX FARGO BANK MINNESOTA, NATIONAL ASSOCIATION By: /s/ Xxxxxxx X. Xxxxx --------------------------------------------------- Name: Xxxxxxx X. Xxxxx Title: Corporate Trust Officer SCHEDULE I SCHEDULE OF GUARANTORS The following schedule lists each Guarantor under this Indenture as of the date of this Indenture: Synagro Midwest, Inc., Synagro of Michigan, Inc., Synagro of Wisconsin, Inc., Synagro of Minnesota - Xxxxxxx, Inc., Synagro Midwest - Enviroland, Inc., Synagro Southwest, Inc., Synagro of Texas-CDR, Inc., Synagro of Texas-Vital-Cycle, Inc., Synagro Southeast, Inc., Synagro of North Carolina-EWR, Inc., Synagro of North Carolina-Amsco, Inc., Synagro of Florida - A&J, Inc., Synagro of Florida - Anti-Pollution, Inc., Synagro of Florida - Xxxxx Water, Inc., Synagro of Florida - Ecosystems, Inc., Synagro Northeast, Inc., Composting Corporation of America, Organi-Gro, Inc., ST Interco, Inc., Environmental Protection & Improvement Company, Inc., Synagro Mid-Atlantic, Inc., Synagro West, Inc., Synagro Composting Company of California, Inc., Synagro of California, Inc., New England Treatment Company, Inc., Fairhaven Residual Systems, Inc., NETCO-Connecticut, Inc., NETCO-Residuals Management Systems, Inc., NETCO-Waterbury Systems, Inc., f/k/a NETCO-Waterbury, Inc., New Haven Residuals Systems, Inc., Residual Technologies Systems, Inc., Residuals Processing, Inc., Future - Tech Environmental Services, Inc., Synagro - WWT, Inc., Soaring Vista Properties, Inc., NYOFCO Holdings, Inc., Synagro - WCWNJ, Inc., Synagro - Baltimore, L.L.C., Synagro Digestion, Inc., Synagro Texas, Inc., and Synagro Delaware, Inc Residual Technologies, Limited Partnership Fairhaven Residuals, Limited Partnership NETCO-Waterbury, Limited Partnership NETCO-Residuals Management, Limited Partnership New Haven Residuals, Limited Partnership Providence Soils, LLC Synagro Management, L.P. New York Organic Fertilizer Company Atlanta Residuals Company, LLC EXHIBIT A ([Face of Note) -------------------------------------------------------------------------------- CUSIP ] ================================================================================ CUSIP/CINS ____________ 9 1/2% Senior Subordinated Notes due 2009 No. ___ $____________ SYNAGRO TECHNOLOGIES, INC. promises to pay to CEDE & CO. or registered assigns, the principal sum of ___________________________________________________________ Dollars on April 1, 2009.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 92 SIGNATURES Dated as of July 29November 6, 2005 L-3 COMMUNICATIONS 2001 TESORO PETROLEUM CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Bruce A. Smith -------------------------------- Name: Xxxxxxx X. Xxxxxxxxx Bruce A. Smith Title: GUARANTORS: APCOMChairmxx xx xxx Xxxxd of Directors, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE Chief Executive Officer U.S. BANK OF NEW YORKTRUST NATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- James Kowalski -------------------------------- Name: Xxxxx X. Xxxxxx James Kowalski Title: Assistant Asst Vxxx Xxxxxxxxx FAR EAST MARITIME COMPANY GOLD STAR MARITIME COMPANY TESORO FINANCIAL SERVICES HOLDING COMPANY VICTORY FINANCE COMPANY By: /s/ Sharon L. Layman -------------------------------- Name: Sharon L. Layman Title: As Axxxxxxxxx Xxxxxx DIGICOMP INC. KENAI PIPE LINE COMPANY SMILEY'S SUPER SERVICE, INC. TESORO ALASKA COMPANY TESORO ALASKA PIPELINE COMPANY TESORO AVIATION COMPANY TESORO GAS RESOURCES COMPANY, INC. TESORO HAWAII CORPORATION TESORO HIGH PLAINS PIPELINE COMPANY TESORO MARINE SERVICES HOLDING COMPANY TESORO MARINE SERVICES, INC. TESORO MARITIME COMPANY TESORO NORTHSTORE COMPANY TESORO PETROLEUM COMPANIES, INC. TESORO REFINING, MARKETING & SUPPLY COMPANY TESORO SOUTH PACIFIC PETROLEUM CORPORATION TESORO TECHNOLOGY COMPANY TESORO VOSTOK COMPANY TESORO WEST COAST COMPANY By: /s/ Sharon L. Laymond ----------------------------------- Name: Sharon L. Layman Title: Vice President Xxxxxxxxx xxx Xreasurer EXHIBITS Exhibit A FORM OF NOTE Exhibit B FORM OF CERTIFICATE OF TRANSFER Exhibit C FORM OF CERTIFICATE OF EXCHANGE Exhibit D FORM OF CERTIFICATE FROM ACQUIRING INSTITUTIONAL ACCREDITED INVESTOR Exhibit E FORM OF SUPPLEMENTAL INDENTURE Exhibit F REGISTRATION RIGHTS AGREEMENT EXHIBIT A A-1 (Face of NoteFACE OF NOTE) -------------------------------------------------------------------------------- CUSIP CUSIP/CINS __________ 9 5/8% Senior Subordinated Notes due 2008 No. A1 $__________ TESORO PETROLEUM CORPORATION promises to pay to or registered assigns, the principal sum of Dollars on November 1, 2008. Interest Payment Dates: May 1 and November 1. Record Dates: April 15 and October 15.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pagespage.] SIGNATURES Dated as of July 29May 7, 2005 L-3 COMMUNICATIONS CORPORATION 1999 METAL MANAGEMENT, INC. By: /s/ Xxxxxxx Robexx X. Xxxxxxxxx ------------------------------------ Xxxrx ----------------------- Name: Xxxxxxx Robexx X. Xxxxxxxxx Xxxrx Title: GUARANTORS: APCOMExecutive Vice President AEROSPACE METALS, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSAMERICAN SCRAP PROCESSING, INC. XXXXXXXX INCC SHREDDING CORP. HYGIENETICS ENVIRONMENTAL SERVICESCALIFORNIA METALS RECYCLING, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSCIM TRUCKING, INC. L-3 COMMUNICATIONS AEROMETCOMETCO CORP. COZZX XXXLDING CORPORATION COZZX XXXN & METAL, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYEMCO TRADING, INC. L-3 COMMUNICATIONS AIS GP FERREX TRADING CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSFIRMA, INC. L-3 COMMUNICATIONS AVISYS FIRMA PLASTIC CO., INC. FPX, INC. HOUSTON COMPRESSED STEEL CORP. HOUTEX METALS COMPANY, INC. THE ISAAX XXXPORATION KIMEXXXXX XXXUISITION CORP. P. JXXXXX XXXN & METAL, INC. KANKAKEE SCRAP CORPORATION L-3 COMMUNICATIONS CE MAC LEOD METALS CO. METAL MANAGEMENT ARIZONA, INC. METAL MANAGEMENT GULF COAST, INC. METAL MANAGEMENT PITTSBURGH INC. METAL MANAGEMENT REALTY, INC. MICHXXX XXXXXXXXX & XONS, INC. NAPORANO IRON & METAL CO. NEWEXX XXXYCLING WEST, INC. NIMCO SHREDDING CO. 138 SCRAP, INC. PERLCO, L.L.C. PROLER SOUTHWEST INC. PROLER STEELWORKS L.L.C. R&P HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSISALT RIVER RECYCLING, L.L.C. SCRAP PROCESSING, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESTORRINGTON SCRAP COMPANY TROJAN TRADING CO. USA SOUTHWESTERN CARRIER, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHS-1 91 By: /s/ Robexx X. Xxxrx ----------------------- Name: Robexx X. Xxxrx Title: Vice President RESERVE IRON & METAL LIMITED PARTNERSHIP By: P. JXXXXX XXXN & METAL, INC., as Guarantors its general partner By: /s/ Xxxxxxxxxxx Robexx X. Xxxxxxx ---------------------------------------- Xxxrx ----------------------- Name: Xxxxxxxxxxx Robexx X. Xxxxxxx Xxxrx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKHARRXX XXXST AND SAVINGS BANK, as Trustee By: /s/ Xxxxx Danixx X. Xxxxxx ---------------------------------------- Xxxxxxx -------------------------------------- Name: Xxxxx Danixx X. Xxxxxx Xxxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP 12 3/4% Senior Secured Notes due 2004 No. $___________ METAL MANAGEMENT, INC. promises to pay to _________________________________________________________ or registered assigns, the principal sum of _______________ Dollars on June 15, 2004. Interest Payment Dates: June 15 and December 15 Record Dates: June 1 and December 1 CUSIP Number: Dated: _______________, 1999 METAL MANAGEMENT, INC. By: ______________________ Name: Title: This is one of the Notes referred to in the within-mentioned indenture: Dated: May 7, 1999 HARRXX XXXST AND SAVINGS BANK as Trustee By: ______________________

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29the date first written above. ISSUERS: TARGA RESOURCES PARTNERS LP By: Targa Resources GP LLC, 2005 L-3 COMMUNICATIONS Its general partner By: /s/ Xxxxxxx X. Xxxxx Name: Xxxxxxx X. Xxxxx Title: Executive Vice President, Chief Financial Officer and Treasurer TARGA RESOURCES PARTNERS FINANCE CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxxx Title: Executive Vice President, Chief Financial Officer and Treasurer [Indenture] GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE TARGA BADLANDS LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT TARGA CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY TARGA COGEN LLC TARGA DOWNSTREAM LLC TARGA GAS MARKETING LLC TARGA GAS PIPELINE LLC TARGA GAS PROCESSING LLC TARGA INTRASTATE PIPELINE LLC TARGA LIQUIDS MARKETING AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION TRADE LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS TARGA LOUISIANA INTRASTATE LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM TARGA MIDSTREAM SERVICES LLC WOLF COACH, INC., as Guarantors TARGA MLP CAPITAL LLC TARGA NGL PIPELINE COMPANY LLC TARGA RESOURCES OPERATING GP LLC TARGA RESOURCES OPERATING LLC TARGA SOUND TERMINAL LLC TARGA TERMINALS LLC TARGA TRANSPORT LLC By: /s/ Xxxxxxxxxxx Xxxxxxx X. Xxxxx Name: Xxxxxxx X. Xxxxx Title: Chief Financial Officer and Treasurer [Indenture] TRUSTEE: U.S. BANK NATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx Xxxxxx X. Xxxxxxx Title: Vice President & Texas Manager, Global Corporate Trust Services EXHIBIT A [Face of Note] CUSIP 87612B AX01 6 3⁄4% Senior Notes due 2024 No. $ TARGA RESOURCES PARTNERS LP and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. TARGA RESOURCES PARTNERS FINANCE CORPORATION promise to pay to , or registered assigns, the principal sum of DOLLARS [or such other amount as Guarantor may be indicated on the attached Schedule of Exchanges of Interests in the Global Note],2 on March 15, 2024. Interest Payment Dates: March 15 and September 15 Record Dates: March 1 and September 1 Dated: , 20 TARGA RESOURCES PARTNERS LP By: L-3 COMMUNICATIONS AIS Targa Resources GP CORPORATIONLLC, as Its General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee TARGA RESOURCES PARTNERS FINANCE CORPORATION By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____:

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE NATIONAL MENTOR HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORK, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Executive Vice President, Chief Financial Officer and Treasurer Each of the Guarantors Listed Below: CAREMERIDIAN, LLC CENTER FOR COMPREHENSIVE SERVICES, INC. CORNERSTONE LIVING SKILLS, INC. FAMILY ADVOCACY SERVICES, LLC FIRST STEP INDEPENDENT LIVING PROGRAM, INC. XXXXXXXX XXXX ENTERPRISES, INC. ILLINOIS MENTOR, INC. INSTITUTE FOR FAMILY CENTERED SERVICES, INC. LAKEVIEW BLUE RIDGE, INC. LAKEVIEW HEALTHCARE SYSTEMS, INC. LAKEVIEW OCEAN STATE, INC. LAKEVIEW WATERFORD, INC. XXXX’X LIBERTY HOMES, INC. MASSACHUSETTS MENTOR, INC. MENTOR ABI, LLC MENTOR MANAGEMENT, INC. MENTOR MARYLAND, INC. NATIONAL MENTOR HEALTHCARE, LLC NATIONAL MENTOR HOLDINGS, LLC NATIONAL MENTOR, LLC NATIONAL MENTOR SERVICES HOLDINGS, LLC NATIONAL MENTOR SERVICES, LLC NEURORESTORATIVE ASSOCIATES, INC. NEW PROVIDER, LLC OHIO MENTOR, INC. PROGRESSIVE LIVING UNITS SYSTEMS-NEW JERSEY, INC. REM ARIZONA REHABILITATION, INC. REM ARROWHEAD, INC. REM CENTRAL LAKES, INC. REM COLORADO, INC. REM COMMUNITY OPTIONS, LLC REM COMMUNITY PAYROLL SERVICES, LLC REM CONNECTICUT COMMUNITY SERVICES, INC. REM CONSULTING OF OHIO, INC. REM DEVELOPMENTAL SERVICES, INC. REM HEARTLAND, INC. REM HENNEPIN, INC. REM HOME HEALTH, INC. REM INDIANA COMMUNITY SERVICES, INC. REM INDIANA COMMUNITY SERVICES II, INC. REM INDIANA, INC. REM IOWA COMMUNITY SERVICES, INC. REM IOWA, INC. REM MANAGEMENT, INC. REM MARYLAND, INC. REM MINNESOTA COMMUNITY SERVICES, INC. REM MINNESOTA, INC. REM NEVADA, INC. REM NEW JERSEY, INC. REM NORTH DAKOTA, INC. REM NORTH STAR, INC. REM OHIO WAIVERED SERVICES, INC. Signature Page to Indenture REM OHIO, INC. XXX XXXXXX, INC. REM RIVER BLUFFS, INC. REM SOUTH CENTRAL SERVICES, INC. REM SOUTHWEST SERVICES, INC. REM UTAH, INC. REM WEST VIRGINIA, LLC REM WISCONSIN II, INC. REM WISCONSIN III, INC. REM WISCONSIN, INC. REM WOODVALE, INC. REM, INC. ROCKLAND CHILD DEVELOPMENT SERVICES, INC. SOUTH CAROLINA MENTOR, INC. TIMBER RIDGE GROUP, INC. TRANSITIONAL SERVICES, LLC UNLIMITED QUEST, INC. By: /s/ Xxxxx X. Xxxxxx Name: Xxxxx X. Xxxxxx Title: Executive Vice President EXHIBIT XXXXX FARGO BANK, NATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxxxx Xxxxxxxx Name: Xxxxxxx Xxxxxxxx Title: Vice President APPENDIX A (Face of Note) -------------------------------------------------------------------------------- CUSIP _____PROVISIONS RELATING TO INITIAL NOTES AND ADDITIONAL NOTES

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 91 SIGNATURES Dated as of July 29, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOMBUILDERS FIRSTSOURCE, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSa Delaware Corporation By: Name: Title: BUILDERS FIRSTSOURCE – NORTHEAST GROUP, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICESLLC, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSa Delaware limited liability company, INC. L-3 COMMUNICATIONS AEROMETas Guarantor By: Name: Title: BUILDERS FIRSTSOURCE – TEXAS GENPAR, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYLLC, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSa Delaware limited liability company, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE as Guarantor By: Name: Title: BUILDERS FIRSTSOURCE – MBS, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: (Signature page to Indenture) BUILDERS FIRSTSOURCE – TEXAS GROUP, L.P., a Texas limited partnership, as Guarantor By: Name: Title: BFS TEXAS, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: BUILDERS FIRSTSOURCE – SOUTH TEXAS, L.P., a Texas limited partnership, as Guarantor By: Name: Title: BUILDERS FIRSTSOURCE – TEXAS INSTALLED SALES, L.P., a Texas limited partnership, as Guarantor By: Name: Title: BFS IP, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: (Signature page to Indenture) BUILDERS FIRSTSOURCE – INTELLECTUAL PROPERTY, L.P., a Texas limited partnership, as Guarantor By: Name: Title: BUILDERS FIRSTSOURCE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. a Delaware corporation, as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATIONName: Title: BUILDERS FIRSTSOURCE – DALLAS, LLC, a Delaware limited liability company, as General Partner Guarantor By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKBUILDERS FIRSTSOURCE – FLORIDA, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: BUILDERS FIRSTSOURCE – FLORIDA DESIGN CENTER, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: (Signature page to Indenture) BUILDERS FIRSTSOURCE – OHIO VALLEY, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: BFS, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: BUILDERS FIRSTSOURCE – ATLANTIC GROUP, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: BUILDERS FIRSTSOURCE – SOUTHEAST GROUP, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: CCWP, INC, a South Carolina close corporation, as Guarantor By: Name: Title: (Signature page to Indenture) BUILDERS FIRSTSOURCE – RALEIGH, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: BUILDERS FIRSTSOURCE – COLORADO GROUP, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: BUILDERS FIRSTSOURCE – COLORADO, LLC, a Delaware limited liability company, as Guarantor By: Name: Title: (Signature page to Indenture) WILMINGTON TRUST COMPANY By: Name: Title: (Signature page to Indenture) [Face of Note] CUSIP/CINS Second Priority Senior Secured Floating Rate Notes due 2016 No. ___ $ BUILDERS FIRSTSOURCE, INC. promises to pay to [ ] or registered assigns, the principal sum of DOLLARS on February 15, 2016. Interest Payment Dates: February 15, May 15, August 15 and November 15 Record Dates: February 1, May 1, August 1 and November 1 Dated: BUILDERS FIRSTSOURCE, INC. By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: WILMINGTON TRUST COMPANY, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note] Second Priority Senior Secured Floating Rate Notes due 2016 THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) -------------------------------------------------------------------------------- CUSIP _____OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (1) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.06 OF THE INDENTURE, (2) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (3) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (4) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE COMPANY. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (00 XXXXX XXXXXX, XXX XXXX, XXX XXXX) (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY OTHER SECURITIES LAWS. THIS SECURITY MAY NOT BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION. THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF, AGREES TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE THAT IS SIX MONTHS AFTER THE ORIGINAL ISSUE DATE HEREOF OR SUCH OTHER PERIOD AS PROMULGATED BY THE SECURITIES AND EXCHANGE COMMISSION ONLY (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) TO A “QUALIFIED INSTITUTIONAL BUYER” WITHIN THE MEANING OF RULE 144A OF THE SECURITIES ACT, (C) TO AN “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501(A) OF THE SECURITIES ACT SUBJECT TO THE RIGHT OF THE COMPANY PRIOR TO ANY OFFER, SALE OR TRANSFER ,TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATIONS AND/OR OTHER INFORMATION SATISFACTORY TO IT, (D) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (E) OUTSIDE THE UNITED STATES PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS IN AN OFFSHORE TRANSACTION PURSUANT TO REGULATION S UNDER THE SECURITIES ACT IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 904 UNDER THE SECURITIES ACT OR (F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29March 10, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOMWCI COMMUNITIES, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICSBY: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Vice Presidexx BAY COLONY-GATEWAY, INC. XXXXXXXX BAY COLONY OF NAPLES, INC. HYGIENETICS ENVIRONMENTAL BAY COLONY REALTY ASSOCIATES, INC. COMMUNITIES AMENITIES, INC. COMMUNITIES FINANCE COMPANY, LLC COMMUNITIES HOME BUILDERS, INC. COMMUNITY SPECIALIZED SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTSCORAL RIDGE COMMUNITIES, INC. L-3 COMMUNICATIONS AEROMETCORAL RIDGE PROPERTIES, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGYCORAL RIDGE REALTY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMSCORAL RIDGE REALTY SALES, INC. L-3 By: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Vice Presidexx CARPENTRY MANAGEMENT ASSOCIATES, LLC DIX HILLS HOME & LAND COMPANY LLC Xx: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Authorized Rxxxxxxxxxxxxx FAIR OAKS PARKWAY, LLC FINANCIAL RESOURCES GROUP, INC. FIRST FIDELITY TITLE, INC. FLORIDA DESIGN COMMUNITIES, INC. FLORIDA LIFESTYLE MANAGEMENT COMPANY FLORIDA NATIONAL PROPERTIES, INC. GATEWAY COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE SERVICES, INC. GC ASSETS OF NASSAU, INC. HOPEWELL CROSSING HOME & LAND COMPANY, LLC HUNTING RIDGE II, LLC HUNTING RIDGE III, LLC By: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Vice Presidexx LAKE GROVE HOME & LAND COMPANY LLC MANSION RIDGE HOME & LAND COMPANY LLC NEW HOME & LAND COMPANY LLC By: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Authorized Rxxxxxxxxxxxxx POPLAR TREE LLC RENAISSANCE AT BEACON HILL II, LLC RENAISSANCE AT BEACON HILL, LLC RENAISSANCE AT BELLVIEW ROAD, LLC RENAISSANCE AT BRIDGES OF OAKTON II, LLC RENAISSANCE AT THE BRIDGES OF OAKTON, LLC RENAISSANCE AT CARDINAL FOREST, LLC RENAISSANCE CUSTOM COMMUNITIES, LLC RENAISSANCE AT EVERGREEN MILLS ROAD, LLC RENAISSANCE AT FOXHXXX, LLC RENAISSANCE AT GEORGETOWN PIKE, LLC RENAISSANCE AT HUNTING HILLS, LLC RENAISSANCE AT KING'S CROSSING, LLC RENAISSANCE AT LAKE MANASSAS, LLC RENAISSANCE AT OAK CREEK CLUB, LLC RENAISSANCE AT OAKTON GLEN, LLC RENAISSANCE AT OCCOQUAN WXXX, LLC RENAISSANCE AT RIVER CREEK II, LLC RENAISSANCE AT RIVER CREEK TOWNS, LLC RENAISSANCE AT RIVER CREEK VILLAS, INC. By: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Vice Presidexx RENAISSANCE AT RIVER CREEK, INC. RENAISSANCE AT ROSELAND, INC. RENAISSANCE AT RUGBY ROAD II, LLC RENAISSANCE AT RUGBY ROAD, LLC RENAISSANCE AT SOUTH RIVER, INC. RENAISSANCE AT THE OAKS, LLC RENAISSANCE AT TIMBERLAKE II, LLC RENAISSANCE AT TIMBERLAKE, LLC RENAISSANCE CUSTOMS, LLC RENAISSANCE HOLDINGS CORP. RENAISSANCE HOUSING CORP. RENAISSANCE LAND, LLC RESORT AT SINGER ISLAND PROPERTIES, INC. RESTON BUILDING COMPANY, LLC RMH, LLC By: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Vice Presidexx SPECTRUM BELLEFAIR CORP. SPECTRUM BRAE BURN CORP. SPECTRUM CONSTRUCTION CORP. SPECTRUM DESIGN STUDIO, INC. By: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Vice Presidexx SPECTRUM GLEN COVE CORP. SPECTRUM HALF MOON, XXXP. SPECTRUM HOLMDEL CORP. SPECTRUM HOMES, INC. SPECTRUM LANDING CORP. By: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Vice Presidexx SOUTHBURY HOME & LAND COMPANY LLC SPECTRUM EAST FISHKILL, LLC SPECTRUM EASTPORT, LLC SPECTRUM KENSINGTON LLC SPECTRUM LAKE GROVE LLC By: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Authorized Rxxxxxxxxxxxxx SPECTRUM MANHATTAN WOODS, LLC SPECTRUM NORTH BERGEN LLX SPECTRUM POCANTICO, LLC SPECTRUM WESTPORT, LLC SPECTRUM WILSON PARK, LLC THE VALIMAR HOME & XXXX COMPANY LLC By: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Authorized Rxxxxxxxxxxxxx SPECTRUM CUSTOMER CARE, INC. SPECTRUM LANDING CORP. SPECTRUM LONG BEACH, LLC SPECTRUM MONROE CORP. SPECTRUM PDC CORP. SPECTRUM REAL ESTATE DEVELOPMENT, LLC SPECTRUM VALIMAR CORP. SPECTRUM-IRVINGTON CORP. SPECTRUM-RIVERWOODS CORP. By: /s/ James D. Cullen ----------------------------------------- Name: James D. Cullen Title: Vice Presidexx SUN CITY CENTER GOLF PROPERTIES, INC. SUN CITY CENTER REALTY, INC. WATERMARK REALTY, INC. THE COLONY AT PELICAN LANDING GOLF CLUB, INC. JYC HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSIMARBELLA AT PELICAN BAY, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIESPELICAN LANDING GOLF RESORT VENTURES, INC. L-3 COMMUNICATIONS ESSCOSARASOTA TOWER, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICESTARPON COVE YACHT & RACQUET CLUB, INC. L-3 COMMUNICATIONS ILEX SYSTEMSTIBURON GOLF VENTURES, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATESWCI ARCHITECTURE & LAND PLANNING, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISIONWATERMARK REALTY REFERRAL, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMSWCI COMMUNITIES PROPERTY MANAGMENT, INC. L-3 COMMUNICATIONS SONOMA EOWCI GOLF GROUP, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRIWCI REALTY, INC. PAC ORD INC. POWER PARAGONGATEWAY COMMUNITIES, INC. SHIP ANALYTICSGATEWAY REALTY SALES, INC. SHIP ANALYTICS INTERNATIONALHERON BAY, INC. SHIP ANALYTICS USAHERON BAY GOLF COURSE PROPERTIES, INC. SPD ELECTRICAL SYSTEMSPELICAN BAY PROPERTIES, INC. SPD SWITCHGEAR PELICAN LANDING PROPERTIES, INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS PELICAN MARSH PROPERTIES, INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) TARPON COVE XXXXXY, INC. WESCAM INCORPORATED WESCAM LLC WOLF COACHWCI HOMES, INC.. PELICAN LANDING COMMUNITIES, as Guarantors INC. SPECTRUM CUSTOMER CARE, INC. WCI AMENITIES, INC. WCI BUSINESS DEVELOPMENT, INC. WCI CAPITAL CORPORATION WCI HOMEBUILDING NORTHEAST, U.S., INC. WCI HOMEBUILDING, INC. WCI MARKETING, INC. WCI MID-ATLANTIC U.S. REGION, INC. WCI NORTHEAST U.S. REGION, LLC WCI TOWERS, INC. WOODLAND PROPERTIES, LLC By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- James D. Cullen ----------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx James D. Cullen Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person Presidexx THE BANK OF NEW YORKYORK TRUST COMPANY, N.A. as Trustee BY: /s/ George W. Bemister III ----------------------------------------- NAME: George W. Bemister III TITLE: Assisxxxx Xxxx Xxxxxxxxt EXHIBIT A-1 [FACE OF NOTE] ================================================================================ CUSIP No. ISIN No. 6-5/8% [Series A] [Series B] Senior Subordinated Notes due 2015 No. $ --- ------------ WCI COMMUNITIES, INC. promises to pay to ------------------------------------------------------------- or registered assigns, the principal sum of ----------------------------------------------------------- Dollars on March 15, 2015. Interest Payment Dates: March 15 and September 15 Record Dates: March 1 and September 1 WCI COMMUNITIES, INC. By: ------------------------------------ Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: Dated: ---------------, ---- THE BANK OF NEW YORK TRUST COMPANY, N.A., as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face --------------------------------- Authorized Officer ================================================================================ [BACK OF NOTE] [Insert the Global Note Legend, if applicable pursuant to the provisions of Note) -------------------------------------------------------------------------------- CUSIP _____the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein shall have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29DYCOM INVESTMENTS, 2005 L-3 INC. By: /s/ H. Xxxxxx XxXxxxxxx Name: H. Xxxxxx XxXxxxxxx Title: Treasurer GUARANTORS: ANSCO & ASSOCIATES, LLC APEX DIGITAL, LLC BROADBAND EXPRESS, LLC BROADBAND INSTALLATION SERVICES, LLC C-2 UTILITY CONTRACTORS, LLC CABLE CONNECTORS, LLC CABLECOM, LLC CABLECOM OF CALIFORNIA, INC. CAN-AM COMMUNICATIONS, INC. CAVO BROADBAND COMMUNICATIONS, LLC CERTUSVIEW LEASING, LLC COMMUNICATIONS CORPORATION CONSTRUCTION GROUP, LLC DYCOM CAPITAL MANAGEMENT, INC. DYCOM CORPORATE IDENTITY, INC. DYCOM IDENTITY, LLC XXXXX CABLE CONSTRUCTION, LLC GLOBE COMMUNICATIONS, LLC INSTALLATION TECHNICIANS, LLC XXX X. XXXXX COMPANY, LLC XXXXXXX’X CABLE SPLICING COMPANY, LLC LOCATING, INC. XXXXXXX CONSTRUCTION, LLC XXXXX XXXXX SONS COMPANY, LLC XXXXX XXXXX SONS COMPANY OF CALIFORNIA, INC. POINT TO POINT COMMUNICATIONS, INC. PRECISION VALLEY COMMUNICATIONS OF VERMONT, LLC PRINCE TELECOM, LLC PRINCE TELECOM OF CALIFORNIA, INC. RJE TELECOM, LLC RJE TELECOM OF CALIFORNIA, INC. STAR CONSTRUCTION, LLC XXXXXXX COMMUNICATIONS, LLC S.T.S., LLC TCS COMMUNICATIONS, LLC TESINC, LLC TESINC OF CALIFORNIA, INC. TRIPLE-D COMMUNICATIONS, LLC U G T I UNDERGROUND SPECIALTIES, LLC UTILIQUEST, LLC WHITE MOUNTAIN CABLE CONSTRUCTION, LLC By: /s/ H. Xxxxxx XxXxxxxxx Name: H. Xxxxxx XxXxxxxxx Title: Treasurer MIDTOWN EXPRESS, LLC By: /s/ Xxxxxx Xxxxx Name: Xxxxxx Xxxxx Title: President OSP SERVICES, LLC By: /s/ Xxxxxx Xxxxxx Name: Xxxxxx Xxxxxx Title: President DYCOM INDUSTRIES, INC. By: /s/ H. Xxxxxx XxXxxxxxx Name: H. Xxxxxx XxXxxxxxx Title: Senior Vice President and Chief Financial Officer U.S. BANK NATIONAL ASSOCIATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxxxx Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President [Face of Note] CUSIP/CINS 7.125% Senior Subordinated Notes due 2021 No. $ DYCOM INVESTMENTS, INC. promises to pay to [ ] or registered assigns, the principal sum of DOLLARS on , 20 . Interest Payment Dates: January 15 and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor July 15 Record Dates: January 1 and July 1 Dated: , 2011 DYCOM INVESTMENTS, INC. By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE This is one of the Notes referred to in the within-mentioned Indenture: U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Name: Xxxxx X. Xxxxxx Title: Assistant Vice President EXHIBIT A (Face Authorized Signatory [Back of Note) -------------------------------------------------------------------------------- CUSIP _____] 7.125% Senior Subordinated Notes due 2021 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table Contents and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall will in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] SIGNATURES Dated as of July 29January 28, 2005 L-3 COMMUNICATIONS CORPORATION 2015 TERRAFORM POWER OPERATING, LLC By: TERRAFORM POWER, LLC, Its Sole Member and Sole Manager By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Xxxxxxxxx Name: Xxxxxxx X. Xxxxxxxxx Xxxxxxxxx Title: GUARANTORS: APCOMChief Financial Officer TERRAFORM POWER, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxxxxxx Xxxxxxxxx Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxxxxxx Xxxxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor Chief Financial Officer SUNEDISON CANADA YIELDCO, LLC SUNEDISON YIELDCO CHILE HOLDCO, LLC SUNEDISON YIELDCO ACQ1, LLC SUNEDISON YIELDCO DG–VIII HOLDINGS, LLC SUNEDISON YIELDCO UK HOLDCO 3, LLC SUNEDISON YIELDCO UK HOLDCO 4, LLC SUNEDISON YIELDCO UK HOLDCO 2, LLC SUNEDISON YIELDCO DG HOLDINGS, LLC SUNEDISON YIELDCO XXXXXX HOLDCO, LLC SUNEDISON YIELDCO REGULUS HOLDINGS, LLC SUNEDISON YIELDCO ACQ2, LLC SUNEDISON YIELDCO ACQ3, LLC SUNEDISON YIELDCO ACQ9, LLC SUNEDISON YIELDCO ACQ4, LLC SUNEDISON YIELDCO ACQ5, LLC SUNEDISON YIELDCO, ENFINITY HOLDINGS, LLC SUNEDISON YIELDCO, DGS HOLDINGS, LLC SUNEDISON YIELDCO ACQ7, LLC SUNEDISON YIELDCO ACQ8, LLC SUNEDISON YIELDCO ACQ6, LLC TERRAFORM POWER IVS I HOLDINGS, LLC TERRAFORM LPT ACQ HOLDINGS, LLC TERRAFORM SOLAR HOLDINGS, LLC TERRAFORM CD ACQ HOLDINGS, LLC TERRAFORM UK1 ACQ HOLDINGS, LLC TERRAFORM REC ACQ HOLDINGS, LLC TERRAFORM SOLAR XVII ACQ HOLDINGS, LLC TERRAFORM FIRST WIND ACQ, LLC By: L-3 COMMUNICATIONS AIS GP CORPORATIONTERRAFORM POWER OPERATING, as General Partner LLC, its Sole Member and Sole Manager By: TERRAFORM POWER, LLC, its Sole Member and Sole Manager By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Xxxxxxxxx Xxxxxxxxx Name: Xxxxxxxxxxx X. Xxxxxxx Xxxxxxxxx Xxxxxxxxx Title: Authorized Person THE Chief Financial Officer U.S. BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Xxxxxxx Xxxxxxxx Name: Xxxxx X. Xxxxxx Xxxxxxx Xxxxxxxx Title: Assistant Vice President EXHIBIT A (A-1 [Face of Note) -------------------------------------------------------------------------------- CUSIP _____] CUSIP/CINS 5.875% Senior Notes due 2023 No. $ TERRAFORM POWER OPERATING, LLC promises to pay to or registered assigns, the principal sum of DOLLARS on February 1, 2023. Interest Payment Dates: February 1 and August 1 Record Dates: January 15 and July 15 Dated: TERRAFORM POWER OPERATING LLC By: Name: Title: This is one of the Notes referred to in the within-mentioned Indenture: U.S. Bank National Association, as Trustee By: Authorized Signatory [Back of Note] 5.875% Senior Notes due 2023 [Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture] Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

Table of Contents, Headings, etc. The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof. [Signatures on following pages] 82 SIGNATURES Dated as of July 29WXXXX FARGO BANK, 2005 L-3 COMMUNICATIONS CORPORATION By: /s/ Xxxxxxx X. Xxxxxxxxx ------------------------------------ Name: Xxxxxxx X. Xxxxxxxxx Title: GUARANTORS: APCOM, INC. BROADCAST SPORTS INC. D.P. ASSOCIATES INC. ELECTRODYNAMICS, INC. XXXXXXXX INC. HYGIENETICS ENVIRONMENTAL SERVICES, INC. INTERSTATE ELECTRONICS CORPORATION KDI PRECISION PRODUCTS, INC. L-3 COMMUNICATIONS AEROMET, INC. L-3 COMMUNICATIONS VERTEX AEROSPACE LLC L-3 COMMUNICATIONS ADVANCED LASER SYSTEMS TECHNOLOGY, INC. L-3 COMMUNICATIONS AIS GP CORPORATION L-3 COMMUNICATIONS AVIONICS SYSTEMS, INC. L-3 COMMUNICATIONS AVISYS CORPORATION L-3 COMMUNICATIONS CE HOLDINGS, INC. L-3 COMMUNICATIONS CINCINNATI ELECTRONICS CORPORATION L-3 COMMUNICATIONS CSI, INC. L-3 COMMUNICATIONS AYDIN CORPORATION L-3 COMMUNICATIONS ELECTRON TECHNOLOGIES, INC. L-3 COMMUNICATIONS ESSCO, INC. L-3 COMMUNICATIONS FLIGHT INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS FLIGHT CAPITAL LLC L-3 COMMUNICATIONS GOVERNMENT SERVICES, INC. L-3 COMMUNICATIONS ILEX SYSTEMS, INC. L-3 COMMUNICATIONS INFRARED VISION TECHNOLOGY CORPORATION L-3 COMMUNICATIONS INVESTMENTS INC. L-3 COMMUNICATIONS XXXXX ASSOCIATES, INC. L-3 COMMUNICATIONS MAS (US) CORPORATION L-3 COMMUNICATIONS MOBILE-VISION, INC. L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC. L-3 COMMUNICATIONS SONOMA EO, INC. L-3 COMMUNICATIONS VECTOR INTERNATIONAL AVIATION LLC L-3 COMMUNICATIONS WESTWOOD CORPORATION MCTI ACQUISITION CORPORATION MICRODYNE COMMUNICATIONS TECHNOLOGIES INCORPORATED MICRODYNE CORPORATION MICRODYNE OUTSOURCING INCORPORATED MPRI, INC. PAC ORD INC. POWER PARAGON, INC. SHIP ANALYTICS, INC. SHIP ANALYTICS INTERNATIONAL, INC. SHIP ANALYTICS USA, INC. SPD ELECTRICAL SYSTEMS, INC. SPD SWITCHGEAR INC. SYCOLEMAN CORPORATION TROLL TECHNOLOGY CORPORATION WESCAM AIR OPS INC. WESCAM AIR OPS LLC WESCAM HOLDINGS (US) INC. WESCAM INCORPORATED WESCAM LLC WOLF COACH, INC., as Guarantors By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Vice President and Secretary L-3 COMMUNICATIONS INTEGRATED SYSTEMS L.P. as Guarantor By: L-3 COMMUNICATIONS AIS GP CORPORATION, as General Partner By: /s/ Xxxxxxxxxxx X. Xxxxxxx ---------------------------------------- Name: Xxxxxxxxxxx X. Xxxxxxx Title: Authorized Person THE BANK OF NEW YORKNATIONAL ASSOCIATION, as Trustee By: /s/ Xxxxx X. Xxxxxx ---------------------------------------- Nxxxxx Xxxxxxxxx Name: Xxxxx X. Xxxxxx Nxxxxx Xxxxxxxxx Title: Assistant Vice President COMPLETE PRODUCTION SERVICES, INC. By: /s/ J. Xxxxxxx Xxxxx Name: J. Xxxxxxx Xxxxx Title: Senior Vice President and Chief Financial Officer A&W WATER SERVICE, INC. ADVANCED COILED TUBING, INC. BELL SUPPLY I, L.P. BIG MAC TANK TRUCKS, LLC BIG MAC TRUCKING COMPANY, INC. BSI HOLDINGS MANAGEMENT, LLC BSI HOLDINGS, LP CES HOLDINGS LLC CES MID-CONTINENT HXXX, INC. CES ROCKIES, INC. COMPLETE ENERGY SERVICES, LLC FEMCO SWD, INC. FUGO SERVICES, LLC GREASEWOOD, LLC GUARD DRILLING MUD DISPOSAL, INC. HXXX & PXXXXXXX SERVICE COMPANY, INC. HXXX MANAGEMENT CO. HXXXXX ENTERPRISES, INC. I.E. MXXXXX SERVICES GP, L.L.C. I.E. MXXXXX SERVICES LP, L.L.C. I.E. MXXXXX SERVICES, L.P. I.E. MXXXXX SERVICES, LLC INTEGRATION PRODUCTION SERVICES, LLC LEED TOOL CORPORATION LXXX XXXXX WELL SERVICE, LLC MGM WELL SERVICES, INC. MONUMENT WELL SERVICE CO. OIL TOOL RENTALS, CO. PARCHMAN ENERGY GROUP, LLC PARCHMAN ENERGY MANAGEMENT GP LLC PARCHMAN ENERGY PARTNERSHIP LP LLC PARCHMAN OPERATING CO., LP PRICE PIPELINE CONSTRUCTION, LTD. PUMPCO ENERGY SERVICES, L.P. PUMPCO SERVICES GP, L.L.C. PUMPCO SERVICES LP, L.L.C. PUMPCO SERVICES, INC. R&W RENTAL, INC. RED RIVER WELL SERVICE, LTD. RIGMOVERS, CO. ROUSTABOUT SPECIALTIES, INC. SCIENTIFIC MICROSYSTEMS, INC. SERVICIOS HOLDINGS I, INC. SERVICIOS HOLDINGS II, INC. SHALE TANK TRUCK, LP STRIDE WELL SERVICE COMPANY, INC. SWEETWATER PRODUCED WATER DISPOSAL, LLC T. & J. ENERGY, LLC THE RXXXX COMPANY TXXXXX ENERGY SERVICES, LLC TXXXXX ENERGY SWD, LLC VALLEY C.T. MANAGEMENT, LC By: /s/ J. Xxxxxxx Xxxxx Name: J. Xxxxxxx Xxxxx Title: Authorized Person EXHIBIT A [FORM OF NOTE] (Face of Note) -------------------------------------------------------------------------------- COMPLETE PRODUCTION SERVICES, INC. 8% Senior Notes due 2016 CUSIP No. $ COMPLETE PRODUCTION SERVICES, INC. promises to pay to [___] or registered assigns, the principal sum of [$___] [or such other amount as is set forth in the Schedule of Exchanging of Interests in the Global Note attached to this Security] on December 15, 2016. Interest Payment Dates: June 15 and December 15, commencing June 15, 2007. Record Dates: June 1 and December 1. Reference is made to the further provisions of this Note on the reverse hereof. COMPLETE PRODUCTION SERVICES, INC. By: Name: Title: By: Name: Title: This is one of the Global Notes referred to in the within-mentioned Indenture WXXXX FARGO BANK, NATIONAL ASSOCATION, as Trustee By: Authorized Signatory Dated: ___________________ (Back of Note) COMPLETE PRODUCTION SERVICES, INC. 8% Senior Notes due 2016 [Insert the Global Notes Legend, if applicable pursuant to the provisions of the Indenture.] [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture.] Capitalized terms used herein shall have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.