Common use of Formula Clause in Contracts

Formula. Airframe and Optional Features price adjustments (Airframe Price Adjustment) are used to allow prices to be stated in current year dollars at the signing of this Purchase Agreement and to adjust the amount to be paid by Customer at delivery for the effects of economic fluctuation. The Airframe Price Adjustment will be determined at the time of Aircraft delivery in accordance with the following formula: Pa = (P) (L + M) - P Where: Pa = Airframe Price Adjustment. (Airframe Price includes the Engine Price at its basic thrust level.) P = Airframe Price plus the price of the Optional Features (as set forth in Table 1 of this Purchase Agreement). L = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [(ECI x (ECI-R ECIb) ECI-Rb)] Where: ECI = three-month arithmetic average value of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] for October, November, and December 2005, using [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]; ECIb = base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); ECI-R = a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated by establishing a three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. As the Employment Cost Index values are only released on a quarterly basis, the value released for the first quarter will be used for the months of January, February, and March; the value released for the second quarter will be used for the months of April, May, and June; the value released for the third quarter will be used for the months of July, August, and September; the value released for the fourth quarter will be used for the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ECI-Rb = three-month arithmetic average value of 100.0 for October, November, and December 2005, using the ECI - NAICS Manufacturing [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] and M = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Where: [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] = a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated as a 3-month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. CPIb = the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and As an example, for an Aircraft scheduled to be delivered in the month of July, the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] of the preceding year will be utilized in determining the value of ECI-R and [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. Note: i. In determining the values of L and M, all calculations and resulting values will be expressed as a decimal rounded to the nearest ten-thousandth.

Formula. Airframe and Optional Features price adjustments (Airframe Price Adjustment) are used to allow prices to be stated in current year dollars at the signing of this Purchase Agreement and to adjust the amount to be paid by Customer at delivery for the effects of economic fluctuation. The Airframe Price Adjustment will be determined at the time of Aircraft delivery in accordance with the following formula: Pa = (P) (L + M) - P Where: Pa = Airframe Price Adjustment. (the Airframe Price includes the Engine Price at its basic thrust level.) P = Airframe Price plus the price of the Optional Features (as set forth in Table 1 3 and 4 of this Purchase Agreement). L = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [(ECI x (ECI-R ECIb) ECI-Rb)] Where: ECIb is the base year airframe escalation index (as set forth in Table 3 and 4 of this Purchase Agreement); ECI = is the three-month arithmetic average value of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] for October, November, and December 2005, using ]; ECI-Rb is the three-month arithmetic average value of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]; ECIb = base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and ECI-R = is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated by establishing a three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. As the Employment Cost Index values are only released on a quarterly basis, the value released for the first quarter will be used for the months of January, February, and March; the value released for the second quarter will be used for the months of April, May, and June; the value released for the third quarter will be used for the months of July, August, and September; the value released for the fourth quarter will be used for the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ECI-Rb = three-month arithmetic average value of 100.0 for October, November, and December 2005, using the ECI - NAICS Manufacturing [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] and M = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] (CPI CPIb ) Where: [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] = CPIb is the base year airframe escalation index (as set forth in Table 3 and 4 of this Purchase Agreement); and CPI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ], calculated as a 3-month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. CPIb = the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and As an example, for an Aircraft scheduled to be delivered in the month of July, the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] of the preceding year will be utilized in determining the value of ECI-R and [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. Note: i. In determining the values of L and M, all calculations and resulting values will be expressed as a decimal rounded to the nearest ten-thousandthCPI.

Formula. Airframe and Optional Features price adjustments (Airframe Price Adjustment) are used to allow prices to be stated in current year dollars at the signing of this Purchase Agreement and to adjust the amount to be paid by Customer at delivery for the effects of economic fluctuation. The Airframe Price Adjustment will be determined at the time of Aircraft delivery in accordance with the following formula: Pa = (P) (L + M) - P Where: Pa = Airframe Price Adjustment. (Airframe Price includes the Engine Price at its basic thrust level.) P = Airframe Price plus the price of the Optional Features (as set forth in Table 1 of this Purchase Agreement). L = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [( ECI ECIb ) where ECIb is the base year index (ECI x (ECI-R ECIbas set forth in Table 1 of this Purchase Agreement) ECI-Rb)] Where: ECI M = three-month arithmetic average value of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] for Octoberx [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] where [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] is the base year index (as set forth in Table 1 of this Purchase Agreement) P = Airframe Price plus Optional Features Price (as set forth in Table 1 of this Purchase Agreement). ECI is a value determined using the U.S. Department of Labor, November, and December 2005, using Bureau of Labor Statistics [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]; ECIb = base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); ECI-R = a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated by establishing a three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. As the Employment Cost Index values are only released on a quarterly basis, the value released for the first quarter month of March will be used for the months of January, January and February, and March; the value released for the second quarter will be June used for the months of April, April and May, and June; the value released for the third quarter will be September used for the months of July, July and August, ; and September; the value released for the fourth quarter will be December used for the months of October and November. [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ECI-Rb = three-month arithmetic average is a value of 100.0 for October, November, and December 2005, determined using the ECI - NAICS Manufacturing U.S. Department of Labor, Bureau of Labor Statistics [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] and M = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Where: [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] = a value determined using the U.S. Department of Labor], Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated as a 3-month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. CPIb = the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and As an example, for an Aircraft scheduled to be delivered in the month of July, the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] of the preceding year will be utilized in determining the value of ECI-R ECI and [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. Note: i. In determining the values of L and M, all calculations and resulting values will be expressed as a decimal rounded to the nearest ten-thousandth.

Formula. Airframe and Optional Features price adjustments (Airframe Price Adjustment) are used to allow prices to be stated in current year dollars at the signing of this Purchase Agreement and to adjust the amount to be paid by Customer at delivery for the effects of economic fluctuation. The Airframe Price Adjustment will be determined at the time of Aircraft delivery in accordance with the following formula: Pa = (P) (L + M) - P Where: Pa = Airframe Price Adjustment. (Airframe Price includes the Engine Price at its basic thrust level.) P = Airframe Price plus the price of the Optional Features (as set forth in Table 1 of this Purchase Agreement). L = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [( ECI ECIb ) where ECIb is the base year index (ECI x (ECI-R ECIbas set forth in Table 3 of this Purchase Agreement) ECI-Rb)] Where: ECI M = three-month arithmetic average value of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] for Octoberx ( CPI CPIb ) where CPIb is the base year index (as set forth in Table 3 of this Purchase Agreement) P = Airframe Price plus Optional Features Price (as set forth in Tables 1, November2 and 3 of this Purchase Agreement). ECI is a value determined using the U.S. Department of Labor, and December 2005, using Bureau of Labor Statistics [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]; ECIb = base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); ECI-R = a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated by establishing a three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. As the Employment Cost Index values are only released on a quarterly basis, the value released for the first quarter month of March will be used for the months of January, January and February, and March; the value released for the second quarter will be June used for the months of April, April and May, and June; the value released for the third quarter will be September used for the months of July, July and August, ; and September; the value released for the fourth quarter will be December used for October and November. CPI is a value determined using the months U.S. Department of Labor, Bureau of Labor Statistics [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ECI-Rb = three-month arithmetic average value of 100.0 for October], November, and December 2005, using the ECI - NAICS Manufacturing [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] and M = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Where: [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] = a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated as a 3-month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. CPIb = the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and As an example, for an Aircraft scheduled to be delivered in the month of July, the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] of the preceding year will be utilized in determining the value of ECI-R ECI and [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. Note: i. In determining the values of L and M, all calculations and resulting values will be expressed as a decimal rounded to the nearest ten-thousandthCPI.

Formula. Airframe and Optional Features price adjustments (Airframe Price Adjustment) are used to allow prices to be stated in current year dollars at the signing of this Purchase Agreement and to adjust the amount to be paid by Customer at delivery for the effects of economic fluctuation. The Airframe Price Adjustment will be determined at the time of Aircraft delivery in accordance with the following formula: Pa = (P) (L + M) - P Where: Pa = Airframe Price Adjustment. (Airframe Price includes the Engine Price at its basic thrust level.) P = Airframe Price plus the price of the Optional Features (as set forth in Table 1 of this Purchase Agreement). L = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [(( ECI x (ECI-R ECIb) ECI-Rb)] Where: ECI where ECIb is the base year Index (as set forth in Table 1 of this Purchase Agreement) M = three-month arithmetic average value of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] for Octoberx ( CPI CPIb ) where CPIb is the base year index(as set forth in Table 1 of this Purchase Agreement) P = Airframe Price plus Optional Features Price (as set forth in Table 1 of this Purchase Agreement). ECI is a value determined using the U.S. Department of Labor, November, and December 2005, using Bureau of Labor Statistics [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]; ECIb = base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); ECI-R = , calculated by establishing a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated by establishing a three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. As the Employment Cost Index values are only released on a quarterly basis, the value released for the first quarter will be used for the months of January, February, and March; the value released for the second quarter will be used for the months of April, May, and June; the value released for the third quarter will be used for the months of July, August, and September; the value released for the fourth quarter will be used for the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ECI-Rb = three-values are only released on a quarterly basis, the value released for the month arithmetic average of March will be used for the months of January and February; the value of 100.0 for October, June used for April and May; the value for September used for July and August; and the value for December used for October and November, and December 2005, . CPI is a value determined using the ECI - NAICS Manufacturing U.S. Department of Labor, Bureau of Labor Statistics [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] and M = ], calculated as a [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Where: [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] = a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated as a 3-month TREATMENT]-month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. CPIb = the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and As an example, for an Aircraft scheduled to be delivered in the month of July, the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] of the preceding year will be utilized in determining the value of ECI-R ECI and [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. Note: i. In determining the values of L and M, all calculations and resulting values will be expressed as a decimal rounded to the nearest ten-thousandthCPI.

Formula. Airframe and Optional Features price adjustments (Airframe Price Adjustment) are used to allow prices to be stated in current year dollars at the signing of this Purchase Agreement and to adjust the amount to be paid by Customer at delivery for the effects of economic fluctuation. The Airframe Price Adjustment will be determined at the time of Aircraft delivery in accordance with the following formula: Pa = (P) (L + M) - P Where: Pa = Airframe Price Adjustment. (the Airframe Price includes the Engine Price at its basic thrust level.) P = Airframe Price plus the price of the Optional Features (as set forth in Table 1 3 of this Purchase Agreement). L = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [(ECI x (ECI-R ECIb) ECI-Rb)] Where: ECIb is the base year airframe escalation index (as set forth in Table 3 of this Purchase Agreement); ECI = is the three-month arithmetic average value of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] for October, November, and December 2005, using ECI-Rb is the three-month arithmetic average value of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]; ECIb = base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); ] and ECI-R = is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated by establishing a three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. As the Employment Cost Index values are only released on a quarterly basis, the value released for the first quarter will be used for the months of January, February, and March; the value released for the second quarter will be used for the months of April, May, and June; the value released for the third quarter will be used for the months of July, August, and September; the value released for the fourth quarter will be used for the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ECI-Rb = three-month arithmetic average value of 100.0 for October, November, and December 2005, using the ECI - NAICS Manufacturing [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] and M = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] (CPI CPIb ) Where: [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] = CPIb is the base year airframe escalation index (as set forth in Table 3 of this Purchase Agreement); and CPI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ], calculated as a 3-month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. CPIb = the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and As an example, for an Aircraft scheduled to be delivered in the month of July, the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] of the preceding year will be utilized in determining the value of ECI-R and [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. Note: i. In determining the values of L and M, all calculations and resulting values will be expressed as a decimal rounded to the nearest ten-thousandthCPI.

Formula. Airframe and Optional Features price adjustments (Airframe Price Adjustment) are used to allow prices to be stated in current year dollars at the signing of this Purchase Agreement and to adjust the amount to be paid by Customer at delivery for the effects of economic fluctuation. The Airframe Price Adjustment will be determined at the time of Aircraft delivery in accordance with the following formula: Pa = (P) (L + M) - P Where: Pa = Airframe Price Adjustment. (the Airframe Price includes the Engine Price at its basic thrust level.) P = Airframe Price plus the price of the Optional Features (as set forth in Table 1 4 of this Purchase Agreement). L = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [(ECI x (ECI-R ECIb) ECI-Rb)] Where: ECI = three-month arithmetic average value of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] for October, November, and December 2005, using [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]; ECIb = is the base year airframe escalation index (as set forth in Table 1 4 of this Purchase Agreement); ECI-R = ECI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated by establishing a three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. As the Employment Cost Index values are only released on a quarterly basis, the value released for the first quarter will be used for the months of January, February, and March; the value released for the second quarter will be used for the months of April, May, and June; the value released for the third quarter will be used for the months of July, August, and September; the value released for the fourth quarter will be used for the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] ECI-Rb = three-month arithmetic average value of 100.0 for October, November, and December 2005, using the ECI - NAICS Manufacturing [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] and M = [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] x [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] (CPI CPIb ) Where: [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] = CPIb is the base year airframe escalation index (as set forth in Table 4 of this Purchase Agreement); and CPI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] calculated as a 3-month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] months prior to the month of scheduled delivery of the applicable Aircraft. CPIb = the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and As an example, for an Aircraft scheduled to be delivered in the month of July, the months of [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] of the preceding year will be utilized in determining the value of ECI-R ECI and [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. Note: i. In determining the values of L and M, all calculations and resulting values will be expressed as a decimal rounded to the nearest ten-thousandthCPI.