Common use of Confidential Treatment Clause in Contracts

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 P.A. No. 3219 XX-0 XXX-XX-0000-XX-00000 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: /s/ The Boeing Company Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: FEBRUARY 1, 2013 AMERICAN AIRLINES, INC. By: /s/ American Airlines, Inc. Its: AAL- LA-1106678 VP Corporate Development and Treasurer P.A. No. 3219 XX-0 XXX-XX-0000-XX-00000 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000Attachment A to Letter Agreement No. AAL-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000PA-3219-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and LA-08837 [*CTR] The parties hereby agree as follows:[*CTR] FOR AMERICAN AIRLINES, INC. SECTION CONTENTS 1 AIRCRAFT MODEL APPLICABILITY 2 FLIGHT PERFORMANCE 3 [*CTR] 4 [*CTR] 5 AIRCRAFT CONFIGURATION 6 GUARANTEE CONDITIONS 7 GUARANTEE COMPLIANCE 8 EXCLUSIVE GUARANTEES

Confidential Treatment. The Buyer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential. Buyer agrees that it will treat this Letter Agreement and the information contained herein represents as confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity, except as provided in Letter Agreement 6-1162-RLL-934, as amended. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ Xxxxx X Xxxxxxx Its Attorney-Inin-Fact ACCEPTED AND AGREED TO as of this Datedate: AMERICAN AIRLINESDecember 13, INC2000 XXXXXXXXX XXXXXXXX XO. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company By /s/ Xxxxxxx Van de Ven Its EVP and Chief Operating Officer P.A. No. 1810 SA 75 K/SWA 6-1162-KJJ-054R2 Southwest Airlines Co. 2700 Xxxx Xxxxx Xxxxx X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. 00000 Xxxxxx, Vice President and Treasurer Ladies and GentlemenXxxxx 00000 Subject: We refer Letter Agreement No. 6-1162-KJJ-054R1 to (a) that certain 2012 Omnibus Restructure AgreementPurchase Agreement No. 1810 – Business Matters This Letter Agreement amends Purchase Agreement No. 1810 dated January 19, dated [*], 20[*] 1994 (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American Airlines, Inc. Southwest Airlines Co. (Buyer) relating to the sale by Boeing and the purchase by Buyer of ninety-four (94) additional Model 737-7H4 Block “American”)T” Aircraft, and [*CTR] The parties hereby Letter Agreement 6-1162-RLL-933R9, dated even date herewith, entitled “Option Aircraft”, to the extent it relates to the sale by Boeing and the purchase by Buyer of twenty-five (25) Block “U” additional Model 737-7H4 aircraft (the Option Aircraft) and one hundred seventy-one (171) Block “V” Rollover Option Aircraft (the Rollover Option Aircraft). Such total of two hundred ninety (290) aircraft are referred herein as the “2000 Order Aircraft.” Boeing and Buyer further agree that the terms of this Letter Agreement shall not apply to Aircraft delivering after December 31, 2011. For the purposes of clarification, the terms of the following Letter Agreements do not apply to the 2000 Order Aircraft described above: 6-1161-RLL-936, as follows:amended, “Certain Contractual Matters” 6-1162-RLL-1855, as amended, “Additional Contractual Matters” All terms used herein and in the Agreement, and not defined herein, will have the same meaning as in the Agreement.

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1162-LKJ-0766 Page 2 Special Considerations – SA-29 SA-29 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESFebruary 2, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its VP Aircraft Acquisitions & Planning and Performance Omitted Attachments Certain attachments to this exhibit regarding delivery and pricing of certain B777F aircraft manufactured by The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000for FedEx have been omitted pursuant to Item 601(a)(5) of Regulation S-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form K because the information contained therein is not material and is not otherwise publicly disclosed. FedEx will furnish supplementally copies of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President these attachments to the Securities and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:Exchange Commission or its staff upon request. Special Considerations – SA-29 SA-29

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect thereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. FED-PA-03712-LA-1106158R4 SA-11 Right to Purchase Additional Aircraft Page 3 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJune 18, INC. By: Its: AAL- LA-1106678 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Aircraft Acquisition FED-PA-03712-LA-1106158R4 SA-11 Right to Purchase Additional Aircraft Page 4 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD FED-PA-03712-LA-1106614 R3 Federal Express Corporation 0000 Xxxxxx/Xxxxx Xxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpecial Matters for Purchase Right Aircraft Reference: We refer to Purchase Agreement No. PA-3712 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”Customer) relating to Model 767-3S2F aircraft (Aircraft) This letter agreement (Letter Agreement) cancels and supersedes Letter Agreement FED-PA-03712-LA-1106614R2 and amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. The credit memoranda provided for in this Letter Agreement will be applicable to exercised Purchase Right Aircraft only (Exercised Purchase Right Aircraft), and [*CTR] The parties hereby agree as follows:described in letter agreement FED-PA-03712-LA-1106158R4, Right to Purchase Additional Aircraft.

Confidential Treatment. The Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential. Customer agrees that it will treat this Letter Agreement and the information contained herein represents as confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] In the event that Customer in good faith concludes (based upon an opinion of counsel) that disclosure of information contained in this Letter Agreement may be required by applicable law or governmental regulations. Customer shall advise Boeing in writing prior to such disclosure, if possible, or, if not possible, then promptly upon receiving such order or upon identifying such need to comply, in order to enable Boeing to take whatever steps it deems necessary to protect its interests in this regard, and Customer will, in any event, disclose only that portion of the information which it is legally required to disclose and Customer will use its reasonable endeavors to protect the confidentiality of such information to the widest extent possible in the circumstances. If the foregoing correctly sets forth your understanding of our agreement with respect to the matters treated above, please indicate your acceptance and approval below. Very truly yours, [GRAPHIC OMITTED] THE BOEING COMPANY By: Its: By [ * ] Its Attorney-In-Fact --------------------------------------- ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESSEPTEMBER 8, 2006 ATLAS AIR, INC. /s/ William J. Flynn ------------------------------------------- By: Mr. William J. Flynn ------------------------------------------- Its: AAL- LA-1106678 President and Chief Executive Officer ------------------------------------------- THE BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 XxxxxxxCOMPANY P.O. Box 3707 Sxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*]Xxxxx Xxx, 20[*] American AirlinesXxx. 2000 Westchester Avenue Purchase, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX NY 00000-0000 AttentionXxxxxxx: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenXxxxxxxxxxx Xxxx Xxxxxxtion Reference: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] Purchase Agreement 3134 (the “Omnibus Agreement”), PURCHASE AGREEMENT) between The Boeing Company (“Boeing”BOEING) and American AirlinesAtlas Air, Inc. (“American”), CUSTOMER) relating to Model 747-8 Freighter aircraft (the AIRCRAFT) [GRAPHIC OMITTED] This letter agreement including without limitation all attachments and [*CTR] The parties hereby agree amendments hereto (LETTER AGREEMENT) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement have the same meaning as follows:in the Purchase Agreement.

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yoursNotwithstanding the foregoing, THE BOEING COMPANY By: Its: Attorney-In-Fact Boeing acknowledges that Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent company, FedEx Corporation, and to Customer’s and FedEx Corporation’s professional advisors under a duty of confidentiality with respect thereto, and as required by law. ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESFebruary 28, INC. 2020 FEDERAL EXPRESS CORPORATION THE BOEING COMPANY By: Its/s/ Xxxxx X. Xxxxxxxx By: AAL- LA-1106678 /s/ Xxxxx Xxxx Name: Xxxxx X. Xxxxxxxx Name: Xxxxx Xxxx Title: Vice President Title: Attorney-In-Fact BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it (i) is not material and (ii) would likely cause competitive harm to FedEx if publicly disclosed. The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*]FED-PA-3157-LA-2000906 FedEx contract # Federal Express Corporation 0000 Xxxxxxxx Xxxx Xxxxxxx, 20XX 00000 Subject: [*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attentionas related to SA-32 and SA-14 References: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), Purchase Agreement No. 3157 between The Boeing Company (“Boeing”) and American AirlinesFederal Express Corporation (Customer) relating to Model 777-FREIGHTER aircraft (777 Purchase Agreement) (b) Purchase Agreement No. 3712 between Boeing and Customer relating to Model 767-3S2F aircraft (767 Purchase Agreement) (c) Letter Agreement FED-PA-03712-LA-1106159R1, Inc. (“American”), and Special Matters Concerning [*CTR] The parties hereby agree as follows:], associated with the 767 Purchase Agreement

Confidential Treatment. The Customer understands that certain commercial and financial information contained in this Letter Agreement /and attachment(s) hereto is considered by Boeing as confidential. Customer agrees that it will treat this Letter Agreement and the information contained herein represents as confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] If the foregoing correctly sets forth your understanding of our agreement with respect to matters described above, please indicate your acceptance and approval below. Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJanuary 9, INC2009 FEDERAL EXPRESS CORPORATION By /s/ XXXXXXX X. XXXX Its Vice President — Aircraft Acquisitions/SAO P.A. No. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] 3157 (SA # 4) The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure January 9, 2009 6-1162-RRO-1068 Federal Express Corporation 0000 Xxxxx Xxxxx Xxxxxxx, XX 00000 Subject: Special Provision — Block B Aircraft Reference: Purchase Agreement 3157 (Form of [*CTR]the Purchase Agreement) [*], 20between The Boeing Company (Boeing) and Federal Express Corporation (Customer) relating to Model 777-FREIGHTER aircraft (the Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement have the same meaning as in the Purchase Agreement. [*] American AirlinesP.A. No. 3157 (SA # 4) Federal Express Corporation 6-1162-RRO-1068 January 9, Inc. P.O. Box 619616 MD 2009 Page 2 [*] Very Truly Yours, THE BOEING COMPANY /s/ XXXXXXX X. XXXX Xxxxxxx X. Xxxx Regional Director BCA Contracts Telephone: 000-000-0000 XxxxxxEmail: xxxxxxx.x.xxxx@xxxxxx.xxx Mail Code: 21-43 Agreed and Accepted date: January 9, 2009 FEDERAL EXPRESS CORPORATION Signature: /s/ XXXXXXX X. XXXX Printed name: Xxxxxxx X. Xxxx Title: Vice President — Aircraft Acquisitions/Xxxx Xxxxx GAO PA No. 3157 (SA # 4) The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 January 9, 2009 0-0000-XXX-0000 Xxxxxxx Express Corporation 0000 Xxxxxxxxxx Xxxxx Xxxxxxx, XX 00000 Attention: Xxxxxxx X. XxxxxxXx. Xxxxx Xxxxxxxx Managing Director — Aircraft Acquisitions & Sales Subject: Aircraft with Delivery Month of August 2010 (MSN 37728) Reference: A) Letter 6-1162-RRO-1069 dated December 30, Vice President and Treasurer Ladies and Gentlemen: We refer 2008, to Xx. Xxxx Xxxx of Federal Express Corporation (aCustomer) that relating to Notice of Excusable Delay for certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:Model 777-FREIGHTER Aircraft

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Very truly yours, THE BOEING COMPANY By Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: , 2015 GAC INC. By _________________________ Its Witness By _________________________ Its Witness BOEING PROPRIETARY The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000‑2207 GOT-PA-3780-LA-0000000X0 GAC, Inc. Praça Comandante Linneu Xxxxx s/n Portaria 3 Prédio 7 Jardim Aeroporto 04626-020 São Paulo - SP Brazil Subject: Special Matters – 737-8 Reference: Purchase Agreement No.3780 (the Purchase Agreement) between The Boeing Company (Boeing) and GAC Inc. (Customer) relating to Model 737-8 aircraft (the Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement, and reflects the mutual agreement of the parties concerning certain business considerations pertaining to the Aircraft and Aircraft that become the subject of [*CTR]=[CONFIDENTIAL CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, INC]. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ]. The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure considerations defined in this Letter Agreement (Form are provided to Customer in recognition of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President the execution of the Purchase Agreement and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure thereafter Customer fully performing all of the obligations as set forth in the Purchase Agreement, dated [*], 20[*] (. All terms used but not defined in this Letter Agreement have the “Omnibus same meaning as in the Purchase Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:.

Confidential Treatment. The Customer understands that certain commercial and financial information contained herein represents in this Letter Agreement is considered by Boeing as confidential business information and has value precisely because it is not available generally or to other parties. Customer will agrees to limit the disclosure of the contents of this Letter Agreement to (a) its contents to directors and officers, (b) employees of Customer with a need to know the contents for purposes of helping Customer perform performing its obligations under (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Purchase Agreement Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) [***] BOEING PROPRIETARY without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Customer shall be fully responsible to Boeing for compliance with such obligations. Very truly yours, THE BOEING COMPANY By: Its: By /s/ Xxxxx X Xxxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDecember 13 , INC2011 SOUTHWEST AIRLINES CO. By: Its: AAL- LA-1106678 By /s/ Xxxxxxx Van de Ven Its EVP & Chief Operating Officer [***] BOEING PROPRIETARY Attachment A: [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT**] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) **] Year 1:____ Year 2:____ Year 3:____ Year 4:____ Year 5:____ [*], 20**] [***] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20**] [***] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR**] The parties hereby agree as follows:[***] [***] [***] [***] [***] [***] [***] [***] [***] [***] [***] SWA-PA-03729-LA-1106477 Page 11 [***] BOEING PROPRIETARY Attachment B: [***] [***]

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. FED-PA-03712-LA-1106154R2 SA-6 Firm Aircraft and Option Aircraft Delivery Matters Page 1 BOEING PROPRIETARY consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect thereto, and as required by law. FED-PA-03712-LA-1106154R2 SA-6 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJuly 21, INC. By: Its: AAL- LA-1106678 2015 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Aircraft Acquisition FED-PA-03712-LA-1106154R2 SA-6 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. P.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx FED-PA-03712-LA-1106156 R2 Federal Express Corporation 3600 Xxxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenOption Aircraft Reference: We refer to Purchase Agreement No. 3712 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American AirlinesFederal Express Corporation (Customer) relating to Model 767-3S2F aircraft (Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. In addition, Inc. (“American”), this Letter Agreement cancels and [*CTR] The parties hereby agree supersedes FED-PA-03712-LA-1106156R1 in its entirety. All terms used but not defined in this Letter Agreement shall have the same meaning as follows:in the Purchase Agreement.

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information which has been filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended. Special Matters – SA-26 Accelerated Block C Aircraft SA-29 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESFebruary 2, INC. By: Its: AAL- LA-1106678 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its VP Aircraft Acquisitions & Planning and Performance Special Matters – SA-26 Accelerated Block C Aircraft SA-29 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD FedEx contract # 00-0000-000 6-1162-LKJ-0766 Federal Express Corporation 0000 Xxxxxx/Xxxxxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpecial Matters – SA-29 Accelerated Aircraft Reference: We refer to (a) that certain 2012 Omnibus Restructure Purchase Agreement No. 3157 (Purchase Agreement, dated [*], 20[*] (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”Customer) relating to Model 777-FREIGHTER aircraft (Aircraft), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The Customer understands and agrees that the information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit This Letter Agreement shall be subject to the disclosure terms and conditions of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Letter Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of BoeingXx. AAL- LA-1106678 XXX-XX-00000-XX-0000000 entitled “Confidentiality”. BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, INC. By: Its: AAL- LA-1106678 Intentionally Left Blank BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] If the foregoing correctly sets forth your understanding of our agreement with respect to the matters treated above, please indicate your acceptance and approval below. Very truly yours, THE BOEING COMPANY By /s/ The Boeing Company X.X. Xxx 0000 XxxxxxxIts Attorney-In-Fact ACCEPTED AND AGREED TO this Date: August 8, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*]2016 AMERICAN AIRLINES, 20[*] INC. By /s/ American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Its Vice President and & Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated BOEING PROPRIETARY [*], 20[*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and Attachment A [*CTR] The parties hereby agree following [*CTR] describe(s) the items of equipment that under the terms and conditions of this Letter Agreement are considered to be [*CTR]. Each such [*CTR] is fully described in the [*CTR] as follows:described in Exhibit A to the Purchase Agreement. Final configuration will be based on Customer acceptance of any or all [*CTR] listed below. [*CTR] Number and Title [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Attachment B [*CTR] This Attachment B describes the functions that Boeing will perform as [*CTR] to support (i) the [*CTR] and (ii) the [*CTR] on the Aircraft.

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect thereto, and as required by law. 6-1169-LKJ-0773 SA-11 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] * Blank spaces contained confidential information which has been filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended. Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJune 18, INC. By: Its: AAL- LA-1106678 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Aircraft Acquisitions & Planning and Performance 6-1169-LKJ-0773 SA-11 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. P.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*]FED-SU-1106178R3 Federal Express Corporation 3600 Xxxxx Xxxxx Xxxx Xxxxxxx, 20XX 00000 Subject: Federal Express Corporation [*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 AttentionReferences: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to 1) Purchase Agreement No. PA-03712 (a767 Purchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”Customer) relating to Model 767-3S2F aircraft (Aircraft) 2) FED-MO-1105406 R1 Proposal for 767-300 Boeing Converted Freighter (BCF) Program (Proposal for 00 000-000 BCF aircraft), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect thereto, and as required by law. FED-PA-03712-LA-1208292R2 SA-6 Special Matters Concerning Escalation – Xxxxx X, Xxxxx X, Xxxxx X, Xxxxx F and Block G Aircraft Page 3 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJuly 21, INC. By: Its: AAL- LA-1106678 2015 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Aircraft Acquisition Attachments A, B and C FED-PA-03712-LA-1208292R2 SA-6 Special Matters Concerning Escalation – Xxxxx X, Xxxxx X, Xxxxx X, Xxxxx F and Block G Aircraft Page 4 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD FED-PA-03712-LA-1208296R1 Federal Express Corporation 0000 Xxxxxx/Xxxxx Xxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpecial Matters for Block D Option Aircraft Reference: We refer to Purchase Agreement No. PA-3712 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American AirlinesFederal Express Corporation (Customer) relating to Model 767-3S2F aircraft (Aircraft) This letter agreement (Letter Agreement) cancels and supersedes Letter Agreement FED-PA-03712-LA-1208296 and amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. The credit memorandum provided for in this Letter Agreement will be applicable to exercised Block D Option Aircraft only, Inc. which (“American”), and i) are priced in [*CTR] The parties hereby agree as follows:dollars and (ii) once exercised by the Customer will be added to Table 1-B1 of the Purchase Agreement (Exercised Block D Option Aircraft).

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. 6-1162-LKJ-0768 Page 2 Special Matters – SA-28 Accelerated Block B Aircraft SA-28 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJanuary 26, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxx X. Xxxxxx Its Vice President Omitted Attachments Certain attachments to this exhibit regarding delivery and pricing of certain B777F aircraft manufactured by The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000for FedEx have been omitted pursuant to Item 601(a)(5) of Regulation S-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form K because the information contained therein is not material and is not otherwise publicly disclosed. FedEx will furnish supplementally copies of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President these attachments to the Securities and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:Exchange Commission or its staff upon request. Special Matters – SA-28 Accelerated Block B Aircraft SA-28

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Boeing acknowledges that Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent company, FedEx Corporation, and to Customer’s and FedEx Corporation’s professional advisors under a duty of confidentiality with respect thereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1169-LKJ-0777 SA-30 Special Matters for SA-30 Option Aircraft Page 2 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDate June 18, INC. By: Its: AAL- LA-1106678 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Aircraft Acquisitions & Planning and Performance 6-1169-LKJ-0777 SA-30 Special Matters for SA-30 Option Aircraft Page 3 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:0000

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesP.A. No. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 3219 SA 3 L.A. 6-1162-TRW-0670R1 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yoursAttachment B Sample Insurance Certificate (Boeing) BROKER’S LETTERHEAD [ date ] Certificate of Insurance Ref. No. THIS IS TO CERTIFY TO: American Airlines, Inc. (hereinafter “American”) P.O. Box 619616 Dallas-Fort Xxxxx Xxxxxxx, Xxxxx 00000-0000 that Insurers, EACH FOR HIS OWN PART AND NOT ONE FOR THE BOEING COMPANY ByOTHER, are providing the following insurance: ItsNAMED INSURED: AttorneyThe Boeing Company (hereinafter “Boeing”) ADDRESS OF INSURED: Xxxx Xxxxxx Xxx 0000 Xxxxxxx, Xxxxxxxxxx 00000-In0000 PERIOD OF INSURANCE: See attached Schedule of Insurers GEOGRAPHICAL LIMITS: Worldwide EQUIPMENT INSURED: All Boeing [model] [type] aircraft owned or operated by American that are the subject of that certain Purchase Agreement No. dated , 20xx between American and Boeing, as more particularly described on the attached Schedule of Aircraft, as such schedule may be amended from time to time. P.A. No. 3219 SA 3 L.A. 6-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, INC. By: Its: AAL- LA-1106678 1162-TRW-0670R1 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL CONFIDENTIAL PORTION OMITTED OMMITED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Positions Page 5 BOEING PROPRIETARY GOT-PA-3780-LA-1207848 R1 Very truly yours, THE BOEING COMPANY By: Its: Attorney-In-Fact By _________________________ Its Attorney‑In‑Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, 2016­­­­­­­­­ GAC INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY By _________________________ By ______________________ Its Its Witness Witness PA-3780 SA-7 [*CTR]=[CONFIDENTIAL CONFIDENTIAL PORTION OMITTED OMMITED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Positions Page 6 BOEING PROPRIETARY The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American AirlinesGOT-PA-3780-LA-1600544 GAC, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx XX Xxx 000, Xxxxxx Xxxxx Xxxxxxx, XX 00000Grand Cayman KY1-0000 Attention1104 Cayman Islands Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenOther [CONFIDENTIAL PORTION OMMITED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Matters Reference: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] Purchase Agreement No. PA-3780 (the “Omnibus Agreement”), PA 3780) between The Boeing Company (“Boeing”) and American AirlinesGAC, Inc. (“American”Customer) relating to Model 737-8 aircraft (Aircraft), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential. Customer agrees that it will treat this Letter Agreement and the information contained herein represents as confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity. AAL- LA-1106678 BOEING PROPRIETARY In the event that Customer in good disclosure, if possible, or, if not possible, then promptly upon receiving such order or upon identifying such need to comply, in order to enable Boeing to take whatever steps it deems necessary to protect its interests in this regard, and Customer will, in any event, disclose only that portion of the information which it is legally required to disclose and Customer will use its reasonable endeavors to protect the confidentiality of such information to the widest extent possible in the circumstances. [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENTGRAPHIC OMITTED] If the foregoing correctly sets forth your understanding of our agreement with respect to the matters treated above, please indicate pour acceptance and approval below. Very truly yours, THE BOEING COMPANY By: Its: COMPAY By [ * ] --------------------------------- Its Attorney-In-Fact --------------------------------- ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESSEPTEMBER 8, 2006 ATLAS AIR, INC. /s/ William J. Flynn ----------------------------------------- By: /s/ Mr. William J. Flynn ------------------------------------- Its: AAL- LA-1106678 :President and Chief Executive Officer ------------------------------------- [ * ] [ * ] [ * ] [ * ] [ * ] THE BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 COMPANY P.O. Box 3707 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*]Xxxxx Xxx, 20[*] American AirlinesXxx. 2000 Westchester Avenue Purchase, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX NY 00000-0000 AttentionXxxxxxx: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenXxxxxxxxxxxxx Xxxxxxxxe Cost Participation Program Reference: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] Purchase Agreement No. 3134 (the “Omnibus Agreement”), PURCHASE AGREEMENT) between The Boeing Company (“Boeing”) and American AirlinesAtlas Air, Inc. (“American”CUSTOMER) relating to Model 747-8 Freighter aircraft (the AIRCRAFT) [GRAPHIC OMITTED] This letter agreement (LETTER AGREEMENT) amends and supplements the Purchase Agreement. It grants to Customer the Airworthiness Directive Cost Participation Program described herein (the PROGRAM), and [*CTR] The parties hereby agree . All terms used but not defined in this Letter Agreement have the same meaning as follows:in the Purchase Agreement.

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Very truly yours, THE BOEING COMPANY By _________________________ Its Attorney‑In‑Fact ACCEPTED AND AGREED TO this Date: 2012­­­­­­­­­ GAC INC. By _________________________ By _________________________ Its Its Witness Witness PA-3780 Purchase Rights BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL The Boeing Company P.X. Xxx 0000 Xxxxxxx, XX 00000-0000 GOT-PA-3780-LA-1207835 GAC, Inc. PX Xxx 000, Xxxxxx Xxxxx Grand Cayman KY1-1104 Cayman Islands Subject: Substitution of Model 737-8 into Model 737-7 Aircraft Reference: Purchase Agreement No. 3780 (Purchase Agreement) between The Boeing Company (Boeing) and GAC INC. (Customer) relating to Model 737-8 aircraft (Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. Customer may substitute the purchase of Boeing Model 737[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY aircraft (Substitute Aircraft) in place of Aircraft with the scheduled month of delivery [*CTR]=[CONFIDENTIAL CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxxafter delivery of the first 737[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] aircraft, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President subject to the following terms and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as followsconditions:

Confidential Treatment. The Boeing and Buyer agree that certain commercial and financial information contained herein represents in this Letter Agreement is confidential business information and has value precisely because it is not available generally or subject to other partiesthe confidentiality provisions of Letter Agreement 6- 1162-WLJ-367R2, Disclosure of Confidential Information. Customer will limit If this Letter Agreement correctly states your understanding of the disclosure matters treated herein, please so indicate by signature below. Very truly yours, THE BOEING COMPANY By: /s/ Gunar O. Clem Its: Attorney-In-Fact AGREEX xxx XXXXXXXD this 10th day of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of BoeingOctober, 1997. AAL- LA-1106678 BOEING PROPRIETARY CONTINENTAL AIRLINES, INC. By: /s/ Brian Davis Its: Vice President Date: ____________________ [*CTR]=[CONFIDENTIAL PORTION CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 XxxxxxxOctober 10, XX 000001997 6-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American 1162-GOC-132 Continental Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx2929 Allen Parkway Houston, XX 00000Texas 77019 Subject: Xxxxxx Xxxxxxxxx No. 6-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer 1162-GOC-132 to Purchase Agreement No. 1783 - Special Matters Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure AgreementThis Letter Agreement amends and supplements Purchase Agreement No. 1783 dated as of March 18, dated [*], 20[*] 1993 (the “Omnibus Purchase Agreement”), ) between The Boeing Company (“Boeing”) and American Continental Airlines, Inc. (“American”Buyer) relating to Model 757-224 aircraft (the Aircraft). This Letter Agreement supersedes and replaces in its entirety Letter Agreement 6-1162-WLJ-375R5, dated August 13, 1997. All terms used herein and in the Purchase Agreement, and not defined herein, will have the same meaning as in the Purchase Agreement. [*CTR] The parties hereby agree as follows:CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 XXX-XX-00000-XX-0000000 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: /s/ The Boeing Company Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: February 1, 2013 AMERICAN AIRLINES, INC. By: /s/ American Airlines, Inc. Its: AAL- LA-1106678 VP Corporate Development and Treasurer XXX-XX-00000-XX-0000000 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 XxxxxxxAppendix II to Aircraft General Terms Agreement No. AGTA-AAL PURCHASE AGREEMENT ASSIGNMENT [ ] MSN [ ] This PURCHASE AGREEMENT ASSIGNMENT, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement dated as of [ , ], between AMERICAN AIRLINES, INC., a Delaware corporation (Form of together with its successors and permitted assigns, the “Assignor”), and [ ], a [ ] (the “Assignee”). [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The Customer understands and agrees that the information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will agrees to limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 If the foregoing correctly sets forth your understanding of our agreement with respect to the matters treated above, please indicate your acceptance and approval below. Very truly yours, THE BOEING COMPANY By: /s/ The Boeing Company Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: March 6, 2015 AMERICAN AIRLINES, INC. By: /s/ American Airlines, Inc. Its: Vice President, Fleet Planning BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yoursAttachment A to AAL-PA-03735-LA-1106661R2 [*CTR] for [*CTR] and [*CTR] Aircraft [*CTR] The following definitions apply: [*CTR] (including both [*CTR]) for the [*CTR] as follows: [*CTR] [*CTR] is the Section 2.1.1 [*CTR]. [*CTR] is the [*CTR] from the [*CTR] for the Section 2.1.1 [*CTR]. [*CTR] is the Section 2.1.3 [*CTR]. [*CTR] is the [*CTR] from the [*CTR] for the Section 2.1.3 [*CTR]. [*CTR] is the Section 2.1.4 [*CTR]. [*CTR] is the [*CTR] from the [*CTR] for the Section 2.1.4 [*CTR]. [*CTR] is the Section 2.1.5 [*CTR]. [*CTR] is the [*CTR] from the [*CTR] for the Section 2.1.5 [*CTR]. If [*CTR] is [*CTR] or a [*CTR], THE BOEING COMPANY By: Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, INCthen [*CTR] customer. By: Its: AAL- LA-1106678 [*CTR]. BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Attachment A to AAL-PA-03735-LA-1106661R2 [*CTR] for [*CTR] Aircraft [*CTR] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement following definitions apply: [*CTR] (Form of including both [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (for the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:: [*CTR] [*CTR] is the Section 2.1.1 [*CTR]. [*CTR] is the [*CTR] from the [*CTR] for the Section 2.1.1 [*CTR] [*CTR] is the Section 2.1.3 [*CTR]. [*CTR] is the [*CTR] for the from the [*CTR] for the Section 2.1.3 [*CTR]. If [*CTR] is [*CTR] or a [*CTR], then [*CTR] customer. [*CTR] Attachment A to AAL-PA-3735-LA-1106661R2 for 737-9 Aircraft SA-2 BOEING PROPRIETARY

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Boeing acknowledges that Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent company, FedEx Corporation, and to Customer’s and FedEx Corporation’s professional advisors under a duty of confidentiality with respect thereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. FED-PA-3157-LA-1802894 SA-30 Special Matters for Block E Aircraft Page 2 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDate June 18, INC. By: Its: AAL- LA-1106678 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Aircraft Acquisitions & Planning and Performance FED-PA-3157-LA-1802894 SA-30 Special Matters for Block E Aircraft Page 3 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 0000000000 2207 6-1169-LKJ-0776 Federal Express Corporation 0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxxxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSA-30 Option Aircraft Reference: We refer to (a) that certain 2012 Omnibus Restructure Purchase Agreement No. 3157 (Purchase Agreement, dated [*], 20[*] (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American AirlinesFederal Express Corporation (Customer) relating to Model 777-FREIGHTER aircraft (Aircraft) (b) Letter Agreement 6-1162-RRO-1066R1, Inc. (“American”), and [*CTR] The parties hereby agree as follows:Special Matters for Block B Aircraft

Confidential Treatment. The Boeing and Buyer agree that certain commercial and financial information contained herein represents in this Letter Agreement is confidential business information and has value precisely because it is not available generally or subject to other partiesthe confidentiality provisions of Letter Agreement 6-1162-MMF-308, Disclosure of Confidential Information. Customer will limit If this Letter Agreement correctly states your understanding of the disclosure matters treated herein, please so indicate by signature below. Very truly yours, THE BOEING COMPANY /s/ Monica Fix M. Monica Fix Regional Director Aircraft Contracxx Xxxing Commercxxx Xxrplane Group AGREED and ACCEPTED this 23 day of its contents July, 1996. CONTINENTAL AIRLINES, INC. By: /s/ Brian Davis Its: Vice President Attachment A to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 BOEING PROPRIETARY Letxxx Xxxxxxxnt 6-1162-MMF-311 [*CTR]=[CONFIDENTIAL PORTION CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT.] Very truly yours, THE BOEING COMPANY By: /s/ Monica Fix Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY Attachment B to Lxxxxx Agreement 6-1162-MMF-311 [*CTR]=[CONFIDENTIAL PORTION CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT.] The Boeing Company X.X. Xxx 0000 Xxxxxxx6-1162-MMF-312 July 23, XX 000001996 CONTINENTAL AIRLINES, INC. 2929 Allen Parkway Houston, Texas 77019 Subject: Letter Axxxxxxxx Xx. 6-0000 EXHIBIT 4B To 2012 Omnibus Restructure 1162-MMF-312 to Purchase Agreement (Form of No. 1951 - [*CTR]) [*], 20[*CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT.] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, This Letter Agreement amends Purchase Agreement No. 1951 dated [*], 20[*] as of even date herewith (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American Continental Airlines, Inc. (“American”Buyer) relating to Model 737-724/-824 aircraft (the Aircraft). All terms used herein and in the Agreement, and not defined herein, will have the same meaning as in the Agreement. [*CTR] The parties hereby agree as follows:CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT.]

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1162-LKJ-0758 Page 2 Special Matters – SA-27 Accelerated Block B Aircraft SA-27 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESOctober 12, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] 2017 FEDERAL EXPRESS CORPORATION By /s/ Xxx Xxxxxxx Its Vice President Omitted Attachments Certain attachments to this exhibit regarding delivery and pricing of certain B777F aircraft manufactured by The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000for FedEx have been omitted pursuant to Item 601(a)(5) of Regulation S-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form K because the information contained therein is not material and is not otherwise publicly disclosed. FedEx will furnish supplementally copies of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President these attachments to the Securities and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:Exchange Commission or its staff upon request. Special Matters – SA-27 Accelerated Block B Aircraft SA-27

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] If the foregoing correctly sets forth your understanding of our agreement with respect to the matters treated above, please indicate your acceptance and approval below. Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDecember 14, INC. By: Its: AAL- LA-1106678 2011 FEDERAL EXPRESS CORPORATION By /s/ XXXXXXX X. XXXX Its Vice President BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (Form of [*CTR]i) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD not material and (ii) the type that FedEx treats as private or confidential. FED-PA-03712-LA-1106584 Federal Express Corporation 0000 Xxxxxx/Xxxxx Xxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenAircraft Performance Guarantees Reference: We refer to Purchase Agreement No. 3712 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American AirlinesFederal Express Corporation (Customer) relating to Model 767-3S2F firm aircraft listed on Table 1-A (Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. Boeing agrees to provide Customer with the performance guarantees in the Attachment. These guarantees are exclusive and expire upon delivery of the Aircraft to Customer. Customer agrees to limit the remedy for non-compliance of any performance guarantee to the terms in Letter Agreements No. FED-PA-03712-LA-1106153 entitled “Liquidated Damages – Non-Excusable Delay” and FED-PA-03712-LA-1106574 entitled “Agreement for Deviation from [ * ].” Confidential Treatment. Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein as confidential. Customer agrees to limit the disclosure of the contents of this Letter Agreement to employees of Customer with a need to know and who understand that they are not to disclose its content to any other person or entity without the prior written consent of Boeing. Notwithstanding the forgoing, Inc. (“American”)Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and [*CTRas required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. FED-PA-03712-LA-1106584 Aircraft Performance Guarantees December 12, 2011 LA Page 1 BOEING PROPRIETARY Very truly yours, THE BOEING COMPANY By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: December 14, 2011 FEDERAL EXPRESS CORPORATION By /s/ XXXXXXX X. XXXX Its Vice President BOEING PROPRIETARY Attachment to Letter Agreement No. FED-PA-03712-LA-1106584 CF6-80C2B6F Engines Page 2 MODEL 767-300 FREIGHTER PERFORMANCE GUARANTEES FOR S-544 SECTION CONTENTS 1 AIRCRAFT MODEL APPLICABILITY 2 FLIGHT PERFORMANCE 3 MANUFACTURER’S EMPTY WEIGHT 4 SOUND LEVELS 5 AIRCRAFT CONFIGURATION 6 GUARANTEE CONDITIONS 7 GUARANTEE COMPLIANCE 8 EXCLUSIVE GUARANTEES [ * ] The parties hereby agree * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as follows:private or confidential.

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 GOT-PA-3780-LA-1207836R4Advance Payment Matters SA-13Page 5 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, AGREED AND ACCEPTED this Date THE BOEING COMPANY By: Its: GAC INC [****] [****] [****] Printed name Printed name Attorney-Inin-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, INC. By: Its: AAL- LA-1106678 Title Title GOT-PA-3780-LA-1207836R4Advance Payment Matters SA-13Page 6 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 0000000000 2207 GOT-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of PA-3780-LA-1804642R1 GAC, Inc. XX Xxx 000, Xxxxxx Xxxxx Grand Cayman KY1-1104 Cayman Islands Subject: [*CTR]) [*], 20[**] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 AttentionSubstitution Reference: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to Purchase Agreement No. 3780 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. GAC INC. (“American”), Customer) relating to [****] and [*CTR***] The parties hereby agree (individually, [****] Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as follows:in the Purchase Agreement. In order to provide Customer additional flexibility for growth and market expansion, Boeing offers to Customer, on a subject to available position, production constraints, and other limitations basis, [****] substitution rights for Aircraft delivering in [****] Substitute Aircraft). For the sake of clarity, a [****] Substitute Aircraft is a Boeing aircraft other than [****] aircraft. Customer may substitute the purchase of [****] Substitute Aircraft in place of Aircraft, subject to the [****] (as described in the table below) and the following terms and conditions: [****] Substitution Ratio [****] Aircraft MTOW

Confidential Treatment. The Customer understands and agrees that the information contained herein represents confidential business information of Boeing and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to (a) its directors and officers, (b) employees of Customer with a need to know the contents for purposes of helping Customer perform performing its obligations under (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Purchase Agreement Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this paragraph 16) without the prior written consent of BoeingBoeing and (c) any auditors, financial advisors, attorneys and independent contractors of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this paragraph 16. AAL- LA-1106678 Customer shall be fully responsible to Boeing for compliance with such obligations. * Confidential material omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment. XXX-XX-0000-XX-0000000 XXXX Matters BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] HAZ-PA-3290-LA-1106266 Very truly yours, THE BOEING COMPANY By: Its: By /s/ Xxxxxxxxx X. Xxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESApril 9, INC2012 AIR LEASE CORPORATION By /s/ Xxxxxx XxXxxx, Xx. By: Its: AAL- LA-1106678 Its Senior Vice President XXX-XX-0000-XX-0000000 XXXX Matters BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*]HAZ-PA-3290-LA-1106267 Air Lease Corporation 0000 Xxxxxx xx xxx Xxxxx, 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx 0000X Xxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpecial Escalation Reference: We refer to Purchase Agreement No. 3290 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Air Lease Corporation (“American”), Customer) relating to the Model 787-9ZK aircraft (Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. [*CTR] The parties hereby agree as follows:]

Confidential Treatment. The Boeing and Customer understand that certain information contained in this Letter Agreement, including any attachments hereto, is considered by both parties to be confidential. Boeing and Customer agree that each party will treat this Letter Agreement and the information contained herein represents as confidential business and will not, without the other party's prior written consent, disclose this Letter Agreement or any information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents contained herein to any other person person. In the event that Customer in good faith concludes (based upon an opinion of counsel) that disclosure of information contained in this [GRAPHIC OMITTED] Letter Agreement may be required by applicable law or entity without governmental regulations, Customer shall advise Boeing in writing prior to such disclosure, if possible, or, if not possible, then promptly upon receiving such order or upon identifying such need to comply, in order to enable Boeing to take whatever steps it deems necessary to protect its interests in this regard, and Customer will, in any event, disclose only that portion of the prior written consent information which it is legally required to disclose and Customer will use its reasonable endeavors to protect the confidentiality of Boeingsuch information to the widest extent possible in the circumstances. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By [ * ] ------------------------------------- Its Attorney-In-Fact ------------------------------------- ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESSEPTEMBER 8, 2006 ATLAS AIR, INC. /S/ William J. Flynn ------------------------------------------------ By: Mr. William J. Flynn ------------------------------------------- Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenChief Executive Officer ------------------------------------------- Attachment AIRFRAME MODEL/MTOW: We refer to 747-8F 970,000 pounds ENGINE MODEL/THRUST: GENX-2B67 66,500 pounds AIRFRAME PRICE: $ [ * ] OPTIONAL FEATURES: $ [ * ] ------------------- SUB-TOTAL OF AIRFRAME AND FEATURES: $ [ * ] ENGINE PRICE (aPER AIRCRAFT): $ [ * ] AIRCRAFT BASIC PRICE (EXCLUDING BFE/SPE): $ [ * ] =================== BUYER FURNISHED EQUIPMENT (BFE) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*ESTIMATE: $ 0 SELLER PURCHASED EQUIPMENT (SPE) ESTIMATE: $ 0 NON-REFUNDABLE DEPOSIT/AIRCRAFT AT DEF AGREEMT: $ [ * ] DETAIL SPECIFICATION: D019U020 (the “Omnibus Agreement”), between The Boeing Company 7/31/2006) AIRFRAME PRICE BASE * ] YEAR/ESCALATION FORMULA: [ * ] [ ENGINE PRICE BASE /A YEAR/ESCALATION FORMULA: N/A N AIRFRAME ESCALATION DATA: ------------------------------ BASE YEAR INDEX (“Boeing”ECI): [ * ] BASE YEAR INDEX (CPI): [ * ] ------------------------------------------------------------------------------------------------------------------------------------ ADVANCE PAYMENT PER AIRCRAFT (AMTS. DUE/MOS. PRIOR TO ESCALATION SCALATION ESTIMATE DELIVERY): DELIVERY NUMBER OF FACTOR ADV PAYMENT BASE ----------------------------------------------------- DATE AIRCRAFT (AIRFRAME) and American Airlines, Inc. (“American”), and [*CTRPRICE PER A/P * ] The parties hereby agree as follows:[ * ] [ * ] [ * ] ------------------------------------------------------------------------------------------------------------------------------------ [ * ] [ * ] [ * ] [ * ] [ * ] [ * ] [ * ] [ * ] ------------------------------------------------------------------------------------------------------------------------------------

Confidential Treatment. The Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential. Customer agrees that it will treat this Letter Agreement and the information contained herein represents as confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] In the event that Customer in good faith concludes (based upon an opinion of counsel) that disclosure of information contained in this Letter Agreement may be required by applicable law or governmental regulations, Customer shall advise Boeing in writing prior to such disclosure, if possible, or, if not possible, then promptly upon receiving such order or upon identifying such need to comply, in order to enable Boeing to take whatever steps it deems necessary to protect its interests in this regard, and Customer will, in any event, disclose only that portion of the information which it is legally required to disclose and Customer will use its reasonable endeavors to protect the confidentiality of such information to the widest extent possible in the circumstances. Very truly yours, THE BOEING COMPANY By: Its: By [ * ] -------------------------------- Its Attorney-In-Fact -------------------------------- ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESSEPTEMBER 8, 2006 ATLAS AIR, INC. /s/ William J. Flynn --------------------------------------------- By: Mr. William J. Flynn ---------------------------------------- Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 XxxxxxxPresident and Chief Executive Officer ---------------------------------------- Atlas Air, XX Inc. 2000 Westchester Avenue Purchase, NY 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenXxxxxx Xxxxxxxx Reference: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] Purchase Agreement 3134 (the “Omnibus Agreement”), PURCHASE AGREEMENT) between The Boeing Company (“Boeing”BOEING) and American AirlinesAtlas Air, Inc. (“American”), CUSTOMER) relating to Model 747-8 Freighter aircraft (the AIRCRAFT): and [*CTRGRAPHIC OMITTED] (b) Special Matters Letter: 747-8 Freighter Aircraft, Letter Agreement 6-1162-ILK-0203 (the SPECIAL MATTERS LETTER). This Letter Agreement amends the Purchase Agreement. All terms used but not defined in this Letter Agreement have the same meaning as in the Purchase Agreement. The parties hereby agree Special Matters Letter contains the business considerations which may be applicable to aircraft acquired through the exercise of an option. If Customer exercises its option, Boeing agrees to manufacture and sell to Customer additional Model 747-8 Freighter aircraft as follows:OPTION AIRCRAFT. The delivery months, number of aircraft, Advance Payment Base Price per aircraft and advance payment schedule are listed in the Attachment to this Letter Agreement. The Airframe Price shown includes the Engine Price.

Confidential Treatment. The Boeing and Buyer understand that certain information contained in this Letter Agreement, including any attachments hereto, are considered by both parties to be confidential. Notwithstanding the provisions of Letter Agreement 6-1162-MMF- 308R2, Boeing and Buyer agree that each party will treat this Letter Agreement and the information contained herein represents as confidential business and will not, without the other party's prior written consent, disclose this Letter Agreement or any information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents contained herein to any other person or entity without the prior written consent of Boeingexcept as may be required by applicable law or governmental regulations. AAL- LA-1106678 Very truly yours, THE BOEING PROPRIETARY COMPANY By /s/ David M. Hurt Its Attorney-In-Fact AXXXXXXX XXX XGREED TO this Date: May 21, 1998 CONTINENTAL AIRLINES, INC. By /s/ Brian Davis Its Vice President 0-1162-DMH-365 May 21, 1998 CONTINENTAL AIRLINES, INC. 2929 Allen Parkway Houston, Texas 77019 Subject: Xxxxxx Xxxxxxxxx Xx. 6-1162-DMH-365 to Purchase Agreement No. 1951 - [*CTR]=[CONFIDENTIAL PORTION CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT.] Very truly yoursModel 737- 924 Ladies and Gentlemen: This Letter Agreement amends Purchase Agreement No. 1951 dated as July 23, 1996 (the Agreement) between THE BOEING COMPANY By: Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN (Boeing) and CONTINENTAL AIRLINES, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY (Buyer) relating to Model 737-924 aircraft (the Aircraft). All terms used herein and in the Agreement, and not defined herein, will have the same meaning as in the Agreement. [*CTR]=[CONFIDENTIAL PORTION CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR.]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Subject to the terms and conditions of Letter Agreement 6-1162-TRW-0673R1 entitled “Confidentiality”, either party may disclose the information contained herein without the consent of the other party when and to the extent required by any law applicable to such party or by a Governmental Authority. P.A. No. 3219 XX-0 XXX-XX-0000-XX-00000X0 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: /s/ The Boeing Company Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: April 21, 2015 AMERICAN AIRLINES, INC. By: /s/ American Airlines, Inc. Its: AAL- LA-1106678 Vice President, Fleet Planning P.A. No. 3219 XX-0 XXX-XX-0000-XX-00000X0 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 XxxxxxxAttachment to Letter Agreement No. AAL-PA-3219-LA-08837R1 [*CTR] [*CTR] FOR AMERICAN AIRLINES, XX 00000INC. SECTION CONTENTS 1 AIRCRAFT MODEL APPLICABILITY 2 FLIGHT PERFORMANCE 3 [*CTR] 4 [*CTR] 5 AIRCRAFT CONFIGURATION 6 GUARANTEE CONDITIONS 7 GUARANTEE COMPLIANCE 8 EXCLUSIVE GUARANTEES P.A. No. 3219 SA-6 AERO-0000 EXHIBIT 4B To 2012 Omnibus Restructure B-BBA4-M12-0713A SS12-0343 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Attachment to Letter Agreement (Form of Xx. XXX-XX-0000-XX-00000X0 [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The Customer understands and agrees that the information contained herein represents confidential business information of Boeing and has value precisely because it is not available generally or to other parties. Customer will agrees to limit the disclosure of its contents to (a) its directors and officers, (b) employees of Customer with a need to know the contents for purposes of helping Customer perform performing its obligations under (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Purchase Agreement Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this paragraph 7), without the prior written consent of BoeingBoeing and (c) any auditors, financial advisors, attorneys and independent contractors of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this paragraph 7. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Customer shall be fully responsible to Boeing for compliance with such obligations. Very truly yours, THE BOEING COMPANY By: Its: By /s/ Xxx X. Xxxxx Its Attorney-Inin-Fact fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDecember 11, INC2015 AIR LEASE CORPORATION By /s/ Xxxxx Xxxx Its Executive Vice President HAZ-PA-03791-LA-1208083R1 SA-4 BOEING PROPRIETARY Enclosure 9 Attachment A to Letter Agreement HAZ-PA-03791-LA-1208083R1 [*] [*] * Confidential material omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment. By: Its: AAL- LA-1106678 BOEING PROPRIETARY Enclosure 9 Attachment B to Letter Agreement HAZ-PA-03791-LA-1208083R1 [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] * Confidential material omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment. BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] * Confidential material omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment. HAZ-PA-03791-LA-1208083R1 SA-4 BOEING PROPRIETARY [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] * Confidential material omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment. HAZ-PA-03791-LA-1208083R1 SA-4 BOEING PROPRIETARY Enclosure 10 The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 0000000000 2207 HAZ-PA-03791-LA-1208087R1 Air Lease Corporation 0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*]Xxxxxx xx xxx Xxxxx, 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx 0000X Xxx Xxxxxxx, XX 0000000000 Subject: Open Matters for 737-0000 Attention8 and 737-9 Aircraft Reference: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to Purchase Agreement No. PA-03791 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American AirlinesAir Lease Corporation (Customer) relating to Model 737-8 and 737-9 aircraft (Aircraft) This letter agreement (Letter Agreement) cancels and supersedes all previous versions with an acceptance date prior to the acceptance date indicated below and amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. Given the long period of time between Purchase Agreement signing and delivery of the first Aircraft and the continued development of the 737 MAX program, Inc. (“American”)certain elements have not yet been defined. In consideration, Boeing and [*CTR] The parties hereby Customer agree to work together as the 737 MAX program develops as follows:

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Agreement as confidential. Customer and Boeing agree that it will treat this Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent company, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information which has been filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended. BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDecember 14, INC2011 Federal Express Corporation By /s/ XXXXXXX X. XXXX Its Vice President * Blank spaces contained confidential information which has been filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD FED-PA-03712-LA-1106160 Federal Express Corporation 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, Xxxxx Xxxxxxx XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpare Parts Initial Provisioning Reference: We refer to (a) that certain 2012 Omnibus Restructure Purchase Agreement No. 3712 (Purchase Agreement, dated [*], 20[*] (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”Customer) relating to Model 767-3S2F aircraft (Aircraft), and [*CTR] The parties hereby agree as follows:;

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Agreement as confidential. Customer and Boeing agree that it will treat this Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent company, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1162-SCR-137 December 12, 2011 777F Miscellaneous Matters Page 1 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AGREED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yoursACCEPTED this December 14, 2011 Date THE BOEING COMPANY By: Its: FEDERAL EXPRESS CORPORATION /s/ XXXXXX X. XXXX /s/ XXXXXXX X. XXXX Signature Signature Xxxxxx X. Xxxx Xxxxxxx X. Xxxx Printed name Printed name Attorney-Inin-Fact ACCEPTED AND AGREED TO Vice President Title Title Omitted Attachments Certain attachments to this Date: AMERICAN AIRLINES, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] exhibit regarding delivery and pricing of certain B777F aircraft manufactured by The Boeing Company X.X. Xxx 0000 Xxxxxxxfor FedEx have been omitted pursuant to Item 601(a)(5) of Regulation S-K because the information contained therein is not material and is not otherwise publicly disclosed. FedEx will furnish supplementally copies of these attachments to the Securities and Exchange Commission or its staff upon request. 6-1162-SCR-137 December 12, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:2011

Confidential Treatment. The Customer and Boeing each understands that certain commercial and financial information contained in this Letter Agreement are considered by both Customer and Boeing as confidential. Customer and Boeing agree that each will treat this Letter Agreement and the information contained herein represents as confidential business information and has value precisely because it is not available generally or to other parties. Customer and, except as otherwise required by law, will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity not, without the prior written consent of Boeingthe other party, disclose this Letter Agreement or any information contained herein to any other person or entity. AAL- LA-1106678 If the foregoing correctly sets forth your understanding of our agreement with respect to the matters treated above, please indicate your acceptance and approval below. Very truly yours, THE BOEING PROPRIETARY COMPANY By _____________ Its Attorney-In-Fact ACCEPTED AND AGREED TO this [*CTR]=[CONFIDENTIAL CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, GAC INC. ByBy _____________ Its _____________ 6-1162-DME-1164 GAC, Inc. Praça Comandante Linneu Xxxxx s/n Portaria 3 Prédio 7 Jardim Aeroporto 04626-020 São Paulo - SP Brazil Subject: ItsCross Collateralization – Leased Aircraft – Boeing Capital Corporation Reference: AAL- LA-1106678 BOEING PROPRIETARY Purchase Agreement No. 2910 (the Purchase Agreement) dated [*CTR]=[CONFIDENTIAL CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (Boeing) and GAC, Inc. (Customer) relating to Model 737 aircraft (the Aircraft) This letter agreement (this "Letter Agreement") is entered into on the date below, and amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement have the same meaning as in the Purchase Agreement. Customer agrees that in the event of the occurrence of an "event of default" or any "special circumstance" or any other event or condition giving a party other than Customer the right to suspend performance or exercise a remedy (taking into account any applicable grace periods, under the relevant documentation, during which Customer has the right to cure or correct the subject failure of performance) (an "Event of Default") under any of the lease agreements described on Schedule 1 hereto between Customer’s affiliate VRG Linhas Aéreas SA (successor by merger to GOL Transportes Aéreos SA, formerly GOL Transportes Aéreos Ltda) (“BoeingLessee”) and American Airlines, Inc. (Boeing Capital Corporation(the “AmericanLeases”), Boeing may, in addition to any other rights it may [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] , all rights hereunder or under the Leases may be exercised simultaneously or in such other order as Boeing and [*CTR] The parties hereby agree as follows:Boeing Capital Corporation shall determine).

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Agreement as confidential. Customer and Boeing agree that it will treat this Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent company, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDecember 14, INC2011 Federal Express Corporation By /s/ XXXXXXX X. XXXX Its Vice President * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD FED-PA-03712-LA-1106160 Federal Express Corporation 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, Xxxxx Xxxxxxx XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpare Parts Initial Provisioning Reference: We refer to (a) that certain 2012 Omnibus Restructure Purchase Agreement No. 3712 (Purchase Agreement, dated [*], 20[*] (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”Customer) relating to Model 767-3S2F aircraft (Aircraft), and [*CTR] The parties hereby agree as follows:;

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect thereto, and as required by law. FED-PA-03712-LA-1106158R4 SA-11 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] * Blank spaces contained confidential information which has been filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended. Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJune 18, INC. By: Its: AAL- LA-1106678 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Aircraft Acquisition FED-PA-03712-LA-1106158R4 SA-11 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. P.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/FED-PA-03712-LA-1106614 R3 Federal Express Corporation 3600 Xxxxx Xxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpecial Matters for Purchase Right Aircraft Reference: We refer to Purchase Agreement No. PA-3712 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”Customer) relating to Model 767-3S2F aircraft (Aircraft) This letter agreement (Letter Agreement) cancels and supersedes Letter Agreement FED-PA-03712-LA-1106614R2 and amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. The credit memoranda provided for in this Letter Agreement will be applicable to exercised Purchase Right Aircraft only (Exercised Purchase Right Aircraft), and [*CTR] The parties hereby agree as follows:described in letter agreement FED-PA-03712-LA-1106158R4, Right to Purchase Additional Aircraft.

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDecember 14, INC2011 Federal Express Corporation By /s/ XXXXXXX X. XXXX Its Vice President Attachments A, B and C * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD FED-PA-03712-LA-1106152 Federal Express Corporation 0000 Xxxxxx/Xxxx Xxxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpecial Matters Concerning [ * ] – Firm Aircraft Reference: We refer to Purchase Agreement No. 3712 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”), Customer) relating to Model 767-3S2F aircraft (Aircraft) This letter agreement (Letter Agreement) amends and [*CTR] The parties hereby agree supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as follows:in the Purchase Agreement.

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information which has been filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended. BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDecember 14, INC. By: Its: AAL- LA-1106678 2011 Federal Express Corporation By /s/ XXXXXXX X. XXXX Its Vice President BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure FED-PA-03712-LA-1106158 Federal Express Corporation 0000 Xxxxx Xxxxx Xxxxxxx XX 00000 Subject: Right to Purchase Additional Aircraft Reference: Purchase Agreement No. 3712 (Form of [*CTR]Purchase Agreement) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”), Customer) relating to Model 767-S2F aircraft (Aircraft) This letter agreement (Letter Agreement) amends and [*CTR] The parties hereby agree supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as follows:in the Purchase Agreement.

Confidential Treatment. The Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1162-SCR-155 SA-22 Customer understands that certain commercial and financial information contained in this Letter Agreement /and attachment(s) hereto is considered by Boeing as confidential. Customer agrees that it will treat this Letter Agreement and the information contained herein represents as confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Notwithstanding the above, Boeing acknowledges that Customer may disclose this Letter Agreement / and attachment(s) hereto to FedEx Corporation, its Board of Directors, and to Customer’s and FedEx Corporation’s professional advisors who are under a duty of confidentiality with respect thereto. Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDecember 11, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] 2012 FEDERAL EXPRESS CORPORATION By /s/ XXXXXXX X. XXXX Its Vice President Aircraft Acquisition Attachment 6-1162-SCR-155 SA-22 The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To November 29, 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 6-1162-SCR-154 Federal Express Corporation 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxxx Xxxxxxx, XX 00000-0000 00000 Attention: Xxxxxxx X. XxxxxxXx. Xxxxx Xxxxxxxx Managing Director – Aircraft Acquisitions & Sales Subject: [ * ] Resulting From Execution of Supplemental Agreement Xx. 00 (XX 00) to Purchase Agreement 3157. Reference: Purchase Agreement 3157 dated November 7, Vice President and Treasurer Ladies and Gentlemen: We refer to 2006 (a) that certain 2012 Omnibus Restructure Purchase Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”), and [*CTR] The parties hereby agree as followsCustomer) relating to Model 777-FREIGHTER Aircraft (Aircraft) Dear Xx. Xxxxxxxx:

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1162-LKJ-0737R1 Page 2 Special Matters – SA-26 Accelerated Block C Aircraft SA-29 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESFebruary 2, INC. By: Its: AAL- LA-1106678 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its VP Aircraft Acquisitions & Planning and Performance Special Matters – SA-26 Accelerated Block C Aircraft SA-29 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD FedEx contract # 00-0000-000 6-1162-LKJ-0766 Federal Express Corporation 0000 Xxxxxx/Xxxxxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpecial Matters – SA-29 Accelerated Aircraft Reference: We refer to (a) that certain 2012 Omnibus Restructure Purchase Agreement No. 3157 (Purchase Agreement, dated [*], 20[*] (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”Customer) relating to Model 777-FREIGHTER aircraft (Aircraft), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The Customer understands and agrees that the information contained herein represents confidential business information of Boeing and has value precisely because it is not BOEING PROPRIETARY Enclosure 4 available generally or to other parties. Customer will agrees to limit the disclosure of its contents to (a) its directors and officers, (b) employees of Customer with a need to know the contents for purposes of helping Customer perform performing its obligations under (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Purchase Agreement Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this paragraph 6) without the prior written consent of BoeingBoeing and (c) any auditors, financial advisors, attorneys and independent contractors of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this paragraph 6. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Customer shall be fully responsible to Boeing for compliance with such obligations. Very truly yours, THE BOEING COMPANY By: Its: By Xxxxxxx Xxxx Its Attorney-Inin-Fact fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESNovember 29, INC. By: Its: AAL- LA-1106678 2023 AIR LEASE CORPORATION By /s/ Xxxxx Xxxx Its Executive Vice President HAZ-PA-03791-LA-1208078R13 SA-34 Advance Payment Matters Page 2 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Enclosure 5 The Boeing Company X.X. P.O. Box 3707 Seattle, WA 98124-2207 HAZ-PA-03791-LA-1208090R16 Air Lease Corporation 0000 Xxxxxx xx xxx Xxxxx, Xxxxx 0000X Xxx 0000 Xxxxxxx, XX 0000000000 Subject: Special Matters for 737-0000 EXHIBIT 4B To 2012 Omnibus Restructure 8 and 737-9 Aircraft Reference: Purchase Agreement No. PA-03791 (Form of [*CTR]Purchase Agreement) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Air Lease Corporation (“American”), Customer) relating to Model 737-8 and [*CTR] The parties hereby agree 737-9 aircraft (Aircraft) This letter agreement (Letter Agreement) cancels and supersedes all previous versions with an acceptance date prior to the acceptance date indicated below and amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as follows:in the Purchase Agreement.

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1162-LKJ-0737 Page 2 Special Matters – SA-26 Accelerated Block C Aircraft SA-26 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESFebruary 10, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] 2017 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its VP Aircraft Acquisitions & Planning and Performance Omitted Attachments Certain attachments to this exhibit regarding delivery and pricing of certain B777F aircraft manufactured by The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000for FedEx have been omitted pursuant to Item 601(a)(5) of Regulation S-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form K because the information contained therein is not material and is not otherwise publicly disclosed. FedEx will furnish supplementally copies of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President these attachments to the Securities and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:Exchange Commission or its staff upon request. Special Matters – SA-26 Accelerated Block C Aircraft SA-26

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 * Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with respect to the omitted portions. ASA-PA-3866-LA-09442 October 10, 2012 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ Xxxxxx Xxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN October 10, 2012 ALASKA AIRLINES, INC. By: Its: AAL- LA-1106678 By /s/ Xxxx Xxxxxxx Its VP/Finance & Treasurer ASA-PA-3866-LA-09442 October 10, 2012 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. CompanyP.O. Xxx 0000 0000Xxxxxxx, XX 00000‑0000 XXX-XX-0000-XX-00000 Xxxxxx Airlines, Inc. XX Xxx 00000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Subject: Agreement (Form of for [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 AttentionReference: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to Purchase Agreement No. 3866 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Alaska Airlines, Inc. (“American”), Customer) relating to Models 737-8 and 737-9 aircraft (Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. The efficiency from [*CTR**] The parties hereby of the Boeing Model 737-8 aircraft and 737-9 aircraft (737MAX Aircraft) over similarly-sized aircraft is a significant factor in determining the 737MAX Aircraft values. [***]. Notwithstanding the [***], Boeing and Customer agree as follows:that the price of each respective Aircraft is based [***] compared to the [***] contained in Section 2 of Attachments A1 and A2 [***]. Boeing will use the method described below [***] to determine the actual [***] of the Aircraft. In the event that the [***], the terms of this Letter Agreement [***].

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1162-LKJ-0766 Page 2 Special Matters – SA-29 Accelerated Aircraft SA-29 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESFebruary 2, INC. By: Its: AAL- LA-1106678 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its VP Aircraft Acquisitions & Planning and Performance 6-1162-LKJ-0766 Page 3 Special Matters – SA-29 Accelerated Aircraft SA-29 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD FedEx contract # 00-0000-000 6-1162-LKJ-0767 Federal Express Corporation 0000 Xxxxxx/Xxxxxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpecial Considerations – SA-29 Reference: We refer to (a) that certain 2012 Omnibus Restructure Purchase Agreement No. 3157 (Purchase Agreement, dated [*], 20[*] (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”Customer) relating to Model 777-FREIGHTER aircraft (Aircraft), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The Customer and Boeing understand that certain commercial and financial information contained in this Letter Agreement are considered by Boeing and Customer as confidential. Customer and Boeing agree that each will treat this Letter Agreement and the information contained herein represents as confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity not, without the prior written consent of Boeingthe other, disclose this Letter Agreement or any information contained herein to any other person or entity, except as provided in this Letter Agreement or in the Applicable Purchase Agreements. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Subject to the terms and conditions of Letter Agreement 6-1162-TRW-0673R1 entitled “Confidentiality”, either party may disclose the information contained in this Letter Agreement without the consent of the other party when and to the extent required by any law applicable to such party or by a Governmental Authority. Very truly yours, THE BOEING COMPANY By: /s/ The Boeing Company Its: Attorney-In-Fact Attorney‑In‑Fact ACCEPTED AND AGREED TO this Date: 6th day of April of 2018 AMERICAN AIRLINES, INC. By: /s/ American Airlines, Inc. Its: AAL- LA-1106678 Vice President and Treasurer PA No. 3219 SA-11 L.A. 6-1162-TRW-0664R2 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (00000‑2207 Attachment A(R2): Information regarding [*CTR] WITHDRAWN Attachment B(R2): Information regarding [*CTR] WITHDRAWN Attachment C(R4): Description and Price for Eligible Models Attachment D: Form of Purchase Agreement Supplement Attachment E: Letter Agreements PA No. 3219 SA-11 L.A. 6-1162-TRW-0664R2 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] [*CTR] Attachment A(R2) to Letter Agreement 6-1162-TRW-0664R1 (Model 787) Information Regarding 787-9 [*CTR] Rights (WITHDRAWN) PA No. 3219 SA-11 L.A. 6-1162-TRW-0664R2 MADP Attachment A(R2) Page 1 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] [*CTR] Attachment B(R2) to Letter Agreement 6-1162-TRW-0664R1 (Model 787) Information Regarding 787-9 [*CTR] Rights (WITHDRAWN) PA No. 3219 SA-11 L.A. 6-1162-TRW-0664R2 QADP Attachment B(R2) Page 2 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Attachment C(R4) to 6-1162-TRW-0664R2 Eligible Model [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] [*CTR] Derivatives TBD* TBD* TBD* TBD* Successor Models TBD* TBD* TBD* TBD* *The Parties will [*CTR]) . PA No. 3219 SA-11 L.A. 6-1162-TRW-0664R2 Aircraft Purchase Rights and Substitution Rights, Attachment Page 1 BOEING PROPRIETARY [*], 20CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Attachment D to 6-1162-TRW-0664R2 PURCHASE AGREEMENT SUPPLEMENT NO. [*___] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure AgreementPURCHASE AGREEMENT SUPPLEMENT NO. 3219, dated [*__________, ____], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“AmericanCustomer”), and [*CTR] The parties hereby agree as follows:.

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Agreement as confidential. Customer and Boeing agree that it will treat this Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Customer may disclose this Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent company, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect thereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. FED-PA-03712-LA-1106159R1 June 29, 2012 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJune 29, INC2012 FEDERAL EXPRESS CORPORATION By /s/ XXXXXXX X. XXXX Its Vice President Aircraft Acquisition * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. By: Its: AAL- LA-1106678 FED-PA-03712-LA-1106159R1 June 29, 2012 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure FED-PA-03712-LA-1106158R1 Federal Express Corporation 0000 Xxxxx Xxxxx Xxxxxxx XX 00000 Subject: Right to Purchase Additional Aircraft References: Purchase Agreement No. 3712 (Form of [*CTR]Purchase Agreement) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American AirlinesFederal Express Corporation (Customer) relating to Model 767-3S2F aircraft (Aircraft). This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. In addition, Inc. (“American”), this Letter Agreement cancels and [*CTR] The parties hereby agree supersedes FED-PA-03712-LA-1106158 in its entirety. All terms used but not defined in this Letter Agreement shall have the same meaning as follows:in the Purchase Agreement.

Confidential Treatment. The Customer understands and agrees that the information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will agrees to limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Very truly yours, THE BOEING PROPRIETARY COMPANY By __________________ Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: , 2016 GAC INC. By _________________________ By ______________________ Its Its Witness Witness ATTACHMENT A [*CTR]=[CONFIDENTIAL CONFIDENTIAL PORTION OMITTED OMMITED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, ATTACHMENT B [CONFIDENTIAL PORTION OMMITED AND FILED SEPARATELY WITH THE BOEING COMPANY By: Its: Attorney-In-Fact ACCEPTED AND AGREED COMMISSION PURSUANT TO this Date: AMERICAN AIRLINES, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY A REQUEST FOR CONFIDENTIAL TREATMENT] Attachment C [*CTR]=[CONFIDENTIAL CONFIDENTIAL PORTION OMITTED OMMITED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American AirlinesGOT-PA-3780-LA-1207848R1 GAC, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx XX Xxx 000, Xxxxxx Xxxxx Xxxxxxx, XX 00000Grand Cayman KY1-0000 Attention1104 Cayman Islands Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen[CONFIDENTIAL PORTION OMMITED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Positions Reference: We refer to Purchase Agreement No. 3780 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American AirlinesGAC INC. (Customer) relating to Model 737-8 aircraft (Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. To accommodate Customer’s concerns regarding uncertain market conditions and Boeing’s [CONFIDENTIAL PORTION OMMITED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT], Inc. (“American”)Customer and Boeing agree that [CONFIDENTIAL PORTION OMMITED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT], subject to the following terms and [*CTR] The parties hereby agree as followsconditions:

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. If the foregoing correctly sets forth your understanding of our agreement with respect to matters described above, please indicate your acceptance and approval below. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1162-RRO-1066R1 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDecember 11, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] 2012 FEDERAL EXPRESS CORPORATION By /s/ XXXXXXX X. XXXX Its Vice President Aircraft Acquisition Omitted Attachments Certain attachments to this exhibit regarding delivery and pricing of certain B777F aircraft manufactured by The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000for FedEx have been omitted pursuant to Item 601(a)(5) of Regulation S-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form K because the information contained therein is not material and is not otherwise publicly disclosed. FedEx will furnish supplementally copies of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000these attachments to the Securities and Exchange Commission or its staff upon request. 6-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:1162-RRO-1066R1

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDecember 14, INC2011 Federal Express Corporation By /s/ XXXXXXX X. XXXX Its Vice President * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD FED-PA-03712-LA-1106207 Federal Express Corporation 0000 Xxxxxx/Xxxxx Xxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpecial Matters for Firm Aircraft Reference: We refer to Purchase Agreement No. PA-3712 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”), Customer) relating to Model 767-3S2F aircraft (Aircraft) This letter agreement (Letter Agreement) amends and [*CTR] supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. The parties hereby agree as follows:credit memorandum provided for in this Letter Agreement will be applicable to the Aircraft identified in Table 1-A of the Purchase Agreement only.

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 CEA-PA-03746-LA-1107150 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ Rxxxx X. Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESCHINA EASTERN AIRLINES CORPORATION, INCLTD. By: Its: AAL- LA-1106678 By Its CHINA EASTERN AVIATION IMPORT & EXPORT CORPORATION By Its CEA-PA-03746-LA-1107150 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. P.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*]CXXXX-00000-XX-0000000 Xxxxx Eastern Airlines Corporation, 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Ltd. 2000 Xxxxxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 AttentionXXXXXXXX 000000 PEOPLE’S REPUBLIC OF CHINA Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpare Parts Initial Provisioning Reference: We refer to (a) that certain 2012 Omnibus Restructure Purchase Agreement No. 03746 (Purchase Agreement, dated [*], 20[*] (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American AirlinesChina Eastern Airlines Corporation, Inc. Ltd. (“American”Customer) relating to Model 777-300ER aircraft (Aircraft), b) Customer Services General Terms Agreement No. 9P (CSGTA) between Boeing and [*CTR] The Customer. This letter agreement (Letter Agreement) is entered into on the date below and amends and supplements the CSGTA. All capitalized terms used but not defined in this Letter Agreement have the same meaning as in the CSGTA, except for “Aircraft” which will have the meaning as defined in the Purchase Agreement. In order to define the process by which Boeing and Customer will i) identify those Spare Parts and Standards critical to Customer’s successful introduction of the Aircraft into service and its continued operation, ii) place Orders under the provisions of the CSGTA as supplemented by the provisions of this Letter Agreement for those Spare Parts and Standards, and iii) manage the return of certain of those Spare Parts which Customer does not use, the parties hereby agree as follows:.

Confidential Treatment. The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ Xxxxx X. Xxxxxxx Xxxxx X. Xxxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESSeptember 7th, INC2014 Aviation Finance and Leasing S.à.x.x. By: Its: AAL- LA-1106678 By /s/ Xxxxxx Xxxxxx Xxxxxx Xxxxxx Its Director [****]=[CONFIDENTIAL PORTION HAS BEEN OMITTED BECAUSE IT (I) IS NOT MATERIAL AND (II) WOULD BE COMPETITIVELY HARMFUL IF PUBLICLY DISCLOSED] [***] BOEING PROPRIETARY XLR-PA-04258-LA-1402903 Aviation Finance and Leasing S.à.x.x. 00, Xxxxxx Xxxxxxx X-0000 Xxxxxxxxxx Subject: [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 AttentionReference: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to Purchase Agreement No. PA-04258 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Aviation Finance and Leasing S.à.x.x (“American”), Customer) relating to Model 737 MAX X aircraft (Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement will have the same meaning as in the Purchase Agreement. 1. [*CTR**] The parties hereby agree as follows:[***] 2. [***] [***] 3. [***] [***] 4. [***] [***] [****]=[CONFIDENTIAL PORTION HAS BEEN OMITTED BECAUSE IT (I) IS NOT MATERIAL AND (II) WOULD BE COMPETITIVELY HARMFUL IF PUBLICLY DISCLOSED] XLR-PA-04258-LA-1402903 LA Page 1 [***] BOEING PROPRIETARY

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect thereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1162-LKJ-0728 SA-8 Special Matters – SA-8 Early Exercise Aircraft Page 2 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJune 10, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] 2016 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Omitted Attachments Certain attachments to this exhibit regarding delivery and pricing of certain B767F aircraft manufactured by The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000for FedEx have been omitted pursuant to Item 601(a)(5) of Regulation S-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form K because the information contained therein is not material and is not otherwise publicly disclosed. FedEx will furnish supplementally copies of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000these attachments to the Securities and Exchange Commission or its staff upon request. 6-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:1162-LKJ-0728 SA-8

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Notwithstanding the foregoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect thereto, and as required by law. Very truly yours, THE BOEING COMPANY By: Its: By /s/ XXXXXX X. XXXX Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJune 29, INC2012 FEDERAL EXPRESS CORPORATION By /s/ XXXXXXX X. XXXX Its Vice President Aircraft Acquisition Attachments A, B and C * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. By: Its: AAL- LA-1106678 FED-PA-03712-LA-1208292 June 29, 2012 June 29, 2012 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20FED-PA-03712-LA-1106159R1 Federal Express Corporation 0000 Xxxxx Xxxxx Xxxxxxx XX 00000 Subject: Special Matters Concerning [*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 AttentionReferences: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to 1. Purchase Agreement No. 3712 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American AirlinesFederal Express Corporation (Customer) relating to Model 767-3S2F aircraft (Aircraft); and 2. 777F Purchase Agreement No. 3157 (777 PA) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. In addition, Inc. (“American”), this Letter Agreement cancels and [*CTR] The parties hereby agree supersedes Letter Agreement FED-PA-03712-LA-1106159 in its entirety. All terms used but not defined in this Letter Agreement shall have the same meaning as follows:in the Purchase Agreement.

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Boeing acknowledges that Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent company, FedEx Corporation, and to Customer’s and FedEx Corporation’s professional advisors under a duty of confidentiality with respect thereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. 6-1169-LKJ-0778 SA-30 SA-30 [*] Matters Page 3 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDate June 18, INC. By: Its: AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Aircraft Acquisitions & Planning and Performance Omitted Attachments Certain attachments to this exhibit regarding delivery and pricing of certain B777F aircraft manufactured by The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000for FedEx have been omitted pursuant to Item 601(a)(5) of Regulation S-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form K because the information contained therein is not material and is not otherwise publicly disclosed. FedEx will furnish supplementally copies of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000these attachments to the Securities and Exchange Commission or its staff upon request. 6-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. (“American”), and [*CTR] The parties hereby agree as follows:1169-LKJ-0776 SA-30

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Boeing acknowledges that Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent company, FedEx Corporation, and to Customer’s and FedEx Corporation’s professional advisors under a duty of confidentiality with respect thereto, and as required by law. FED-PA-3157-LA-1802894 SA-30 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Blank spaces contained confidential information which has been filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended. Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESDate June 18, INC. By: Its: AAL- LA-1106678 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Aircraft Acquisitions & Planning and Performance FED-PA-3157-LA-1802894 SA-30 Special Matters for Block E Aircraft Page 3 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 0000000000 2207 6-1169-LKJ-0776 Federal Express Corporation 0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxxxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSA-30 Option Aircraft Reference: We refer to (a) that certain 2012 Omnibus Restructure Purchase Agreement No. 3157 (Purchase Agreement, dated [*], 20[*] (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American AirlinesFederal Express Corporation (Customer) relating to Model 777-FREIGHTER aircraft (Aircraft) (b) Letter Agreement 6-1162-RRO-1066R1, Inc. (“American”), and [*CTR] The parties hereby agree as follows:Special Matters for Block B Aircraft

Confidential Treatment. Boeing and Customer understand that certain information contained in this Letter Agreement is considered to be confidential. The parties agree that they will treat this Letter Agreement and the information contained herein represents as confidential business and will not, BOEING PROPRIETARY ""[***]" This information is subject to confidential treatment and has value precisely because it is not available generally been omitted and filed separately with the commission" without the prior written consent of the other party, disclose this Letter Agreement or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents any information contained herein to any other person or entity without except: (1) to those of their respective legal counsel, auditors, accountants, insurance brokers and other advisers who have a need to know the prior information for purposes of interpreting Customer's rights or interpreting or performing Customer's obligations under the Purchase Agreement, subject to such parties' written consent agreements that they will treat the information as confidential; (2) to a bank for the sole purpose of Boeingfinancing of the purchase of such Aircraft and subject to such bank's written agreement that it will treat the information as confidential; (3) as required by the rules of any stock market applicable to the parties on condition that the party wishing to make such disclosure shall first use reasonable efforts to seek relief from the risk of disclosure to competitors or others with whom either of the parties has business relations of information which might be detrimental to the interest of either of the parties; or (4) as may be required by applicable law. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINES, INC. By: Its: AAL- LA-1106678 XIAMEN AIRLINES By Its XIA-PA-03807-LA-1301956 BOEING PROPRIETARY ""[*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] **]" This information is subject to confidential treatment and has been omitted and filed separately with the commission" The Boeing Company X.X. P.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/XIA-PA-03807-LA-1301957 Xiamen Airlines 20 Xxxxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenXxxxxx Xxxxxxxx, 000000 People’s Republic of China Subject: We refer to Promotional Support Reference: Purchase Agreement No. PA-03807 (aPurchase Agreement) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Xiamen Airlines (“American”), Customer) relating to Model 737-8 aircraft (Aircraft) This letter agreement (Letter Agreement) amends and [*CTR] The parties hereby agree supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement will have the same meaning as follows:in the Purchase Agreement. Boeing and Customer wish to enter into an agreement pursuant to which each party will contribute equally to promotional programs in support of the entry into service of the Aircraft as more specifically provided below.

Confidential Treatment. The Customer and Boeing consider certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the forgoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect hereto, and as required by law. * Blank spaces contained confidential information which has been filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended. Special Matters – SA-29 Accelerated Aircraft SA-29 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ L. Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESFebruary 2, INC. By: Its: AAL- LA-1106678 2018 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its VP Aircraft Acquisitions & Planning and Performance 6-1162-LKJ-0766 Page 3 Special Matters – SA-29 Accelerated Aircraft SA-29 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD FedEx contract # 00-0000-000 6-1162-LKJ-0767 Federal Express Corporation 0000 Xxxxxx/Xxxxxxxx Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention00000 Subject: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenSpecial Considerations – SA-29 Reference: We refer to (a) that certain 2012 Omnibus Restructure Purchase Agreement No. 3157 (Purchase Agreement, dated [*], 20[*] (the “Omnibus Agreement”), ) between The Boeing Company (“Boeing”) and American Airlines, Inc. Federal Express Corporation (“American”Customer) relating to Model 777-FREIGHTER aircraft (Aircraft), and [*CTR] The parties hereby agree as follows:

Confidential Treatment. The Customer understands that Boeing considers certain commercial and financial information contained in this Letter Agreement as confidential. Each of Customer and Boeing agree that it will treat this Letter Agreement and the information contained herein represents confidential business information and has value precisely because it is not available generally or to other partiesas confidential. Customer will agrees to limit the disclosure of its the contents of this Letter Agreement to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand that they are not to disclose its contents content to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 Notwithstanding the foregoing, Customer may disclose this Letter Agreement and the terms and conditions herein to its parent company, FedEx Corporation, to the Board of Directors of its parent corporation, FedEx Corporation, to its professional advisors under a duty of confidentiality with respect thereto, and as required by law. * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. FED-PA-03712-LA-0000000X0 SA-6 Special Matters Concerning [*] – Option Aircraft and Certain Purchase Right Aircraft Page 3 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Very truly yours, THE BOEING COMPANY By: Its: By /s/ Xxxxxxx Xxxxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESJuly 21, INC2015 FEDERAL EXPRESS CORPORATION By /s/ Xxxxxxx X. Xxxx Its Vice President Aircraft Acquisition Attachments A, B and C * Blank spaces contained confidential information that has been excluded pursuant to Item 601(b)(10)(iv) of Regulation S-K because it is both (i) not material and (ii) the type that FedEx treats as private or confidential. By: Its: AAL- LA-1106678 FED-PA-03712-LA-0000000X0 SA-6 Special Matters Concerning [*] – Option Aircraft and Certain Purchase Right Aircraft Page 4 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure FED-PA-03712-LA-1106154 R2 Federal Express Corporation 0000 Xxxxx Xxxxx Xxxxxxx XX 00000 Subject: Firm Aircraft and Option Aircraft Delivery Matters Reference: Purchase Agreement No. 3712 (Form of [*CTR]Purchase Agreement) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American AirlinesFederal Express Corporation (Customer) relating to Model 767-3S2F aircraft (Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. In addition, Inc. this Letter Agreement cancels and supersedes Letter Agreement FED-PA-03712-LA-1106154R1 in its entirety. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. The information provided in this Letter Agreement will be applicable to the firm Aircraft identified in Tables of the Purchase Agreement only (“American”Firm Aircraft), and [*CTR] The parties hereby agree as follows:.

Confidential Treatment. The [GRAPHIC OMITTED] Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential. Customer agrees that it will treat this Letter Agreement and the information contained herein represents as confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity. AAL- LA-1106678 BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] In the event that Customer in good faith concludes (based upon an opinion of counsel) that disclosure of information contained in this Letter Agreement may be required by applicable law or governmental regulations, Customer shall advise Boeing in writing prior to such disclosure, if possible, or, if not possible, then promptly upon receiving such order or upon identifying such need to comply, in order to enable Boeing to take whatever steps it deems necessary to protect its interests in this regard, and Customer will, in any event, disclose only that portion of the information which it is legally required to disclose and Customer will use its reasonable endeavors to protect the confidentiality of such information to the widest extent possible in the circumstances. If the foregoing correctly sets forth your understanding of our agreement with respect to the matters treated above, please indicate your acceptance and approval below. Very truly yours, [GRAPHIC OMITTED] THE BOEING COMPANY By: Its: Attorney-In-Fact By [ * ] ---------------------------------------- Its ATTORNEY IN FACT ---------------------------------------- ACCEPTED AND AGREED TO this TO: Date: AMERICAN AIRLINESSEPTEMBER 8, 2006 ATLAS AIR, INC. By: Its: AAL- LA-1106678 By /s/ William J. Flynn ---------------------------------------- Its President and Chief Executive Officer ---------------------------------------- [ * ] [ * ] BOEING PROPRIETARY [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] The Boeing Company X.X. Xxx 0000 XxxxxxxCOMMERCIAL AIRPLANES P.O. Box 3707 Sxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure Agreement (Form of [*CTR]) [*]Xxxxx Xxx, 20[*] American AirlinesXxx. 2000 Westchester Avenue Purchase, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX NY 00000-0000 AttentionXxxxxxx: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and GentlemenXxxxxxxxxxxxx Xxxxxx Xxxxer Reference: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] Purchase Agreement No. 3134 (the “Omnibus Agreement”), PURCHASE AGREEMENT) between The Boeing Company (“Boeing”BOEING) and American AirlinesAtlas Air, Inc. (“American”CUSTOMER) relating to Model 747-8 freighter aircraft consisting of twelve (12) firm Boeing Model 747-8 Freighter Aircraft (FIRM Aircraft), one (1) option to purchase Boeing Model 747-8 Freighter [GRAPHIC OMITTED] Aircraft (OPTION AIRCRAFT) and [*CTR] The parties hereby agree thirteen (13) rights to purchase Boeing Model 747-8 Freighter Aircraft (PURCHASE RIGHTS AIRCRAFT), collectively (AIRCRAFT) This letter agreement (LETTER AGREEMENT) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as follows:in the Purchase Agreement.

Confidential Treatment. The Customer understands and agrees that the information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will agrees to limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing. AAL- LA-1106678 BOEING PROPRIETARY [____________________ *CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Redacted Pursuant to a Request for Confidential Treatment; Filed separately with the Commission Very truly yours, THE BOEING COMPANY By: Its: By /s/ Xxx Xxxxxx Xxx Xxxxxx Its CEO, Boeing Commercial Airplanes By /s/ Xxxx Xxxx Xxxx Xxxx Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: AMERICAN AIRLINESMarch 18, INC2013 Aviation Finance and Leasing S.à.x.x. By: Its: AAL- LA-1106678 BOEING PROPRIETARY By /s/ Xxxxxxx X’Xxxxx Xxxxxxx X’Xxxxx Its Director ____________________ *Redacted Pursuant to a Request for Confidential Treatment; Filed separately with the Commission Attachment A to Letter Agreement XLR-PA-03941-LA-1300288 TABLE [*CTR]=[CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ____________________ *Redacted Pursuant to a Request for Confidential Treatment; Filed separately with the Commission Attachment B to Letter Agreement XLR-PA-03941-LA-1300288 TABLE [*] ____________________ *Redacted Pursuant to a Request for Confidential Treatment; Filed separately with the Commission The Boeing Company X.X. Xxx 0000 Xxxxxxx, XX 00000-0000 EXHIBIT 4B To 2012 Omnibus Restructure XLR-PA-03941-LA-1300289 Aviation Finance and Leasing S.à.x.x. 0, xxx Xxxxxxxxx Xxxxxxxxx L-2522 Luxembourg Subject: Aircraft Performance Guarantees Reference: Purchase Agreement No. PA-03941 (Form of [*CTR]Purchase Agreement) [*], 20[*] American Airlines, Inc. P.O. Box 619616 MD 0000 Xxxxxx/Xxxx Xxxxx Xxxxxxx, XX 00000-0000 Attention: Xxxxxxx X. Xxxxxx, Vice President and Treasurer Ladies and Gentlemen: We refer to (a) that certain 2012 Omnibus Restructure Agreement, dated [*], 20[*] (the “Omnibus Agreement”), between The Boeing Company (“Boeing”) and American Airlines, Inc. Aviation Finance and Leasing S.à.x.x. (“American”), Customer) relating to Model 737-8MD aircraft (Aircraft) This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement. Boeing agrees to provide Customer with the performance guarantees in the Attachment. [*CTR] The parties hereby agree as follows:]