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: **** Where: Pa = **** P = **** **** **** **** Where: ECIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); ECI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Employment Cost Index for NAICS Manufacturing – Total Compensation (BLS Series ID CIU2013000000000I), calculated by establishing a three (3) month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th 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 October, November, and December. M = **** **** **** Where: CPIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and CPI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Consumer Price Index – All Urban Consumers (BLS Series ID CUUR0000SA0), calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the month of scheduled delivery of the applicable Aircraft. As an example, for an Aircraft scheduled to be delivered in the month of July, the months of June, July, and August of the preceding year will be utilized in determining the value of ECI and CPI. 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. (iv) The **** (base year indices) are the actual average values reported by the U.S. Department of Labor, Bureau of Labor Statistics. The actual average values are calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the airframe base year. The applicable base year and corresponding denominator is provided by Boeing in Table 1 of this Purchase Agreement. (v) The final value of Pa will be rounded to the nearest dollar. (vi) The Airframe Price Adjustment will not be made if it will result in a decrease in the Aircraft Basic Price.

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+B)(L + M) - P Where: Pa = **** P Airframe Price Adjustment. (For Model 717-200, 737-600, 737-700, 737-800 and 737-900, the Airframe Price includes the Engine Price at its basic thrust level.) L = **** **** **** **** Where: .65 x ( ECI ----- ECIb )where ECIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement) M = .35 x ( ICI ----- ICIb ); where ICIb 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). B = 0.005 x (N/12) x (P)where N is the calendar month and year of scheduled Aircraft delivery minus the calendar month and year of the Base Price Year, both as shown in Table 1 of this Purchase Agreement. ECI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Statistics "Employment Cost Index for NAICS Manufacturing – Total Compensation workers in aerospace manufacturing - Wages and Salaries" (BLS Series ID CIU2013000000000IECI code 3721W), calculated by establishing a three (3) three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the 11thfifth, 12th, sixth and 13th seventh 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, October and November, and December. M = **** **** **** Where: CPIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and CPI ICI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Consumer Statistics "Producer Prices and Price Index – All Urban Consumers (BLS Series ID CUUR0000SA0)- Industrial Commodities Index ", calculated as a three (3) -month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th5th, 12th, 6th and 13th 7th months prior to the month of scheduled delivery of the applicable Aircraft. As an example, for an Aircraft scheduled to be delivered in the month of JulyJanuary, the months of June, July, July and August of the preceding year will be utilized in determining the value of ECI and CPI. 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-thousandthICI. (iv) The **** (base year indices) are the actual average values reported by the U.S. Department of Labor, Bureau of Labor Statistics. The actual average values are calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the airframe base year. The applicable base year and corresponding denominator is provided by Boeing in Table 1 of this Purchase Agreement. (v) The final value of Pa will be rounded to the nearest dollar. (vi) The Airframe Price Adjustment will not be made if it will result in a decrease in the Aircraft Basic Price.

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 - 1) Where: Pa = **** Airframe Price Adjustment. L = .65 x ECI 130.1 M = .35 x ICI 123.6 P = **** **** **** **** Where: ECIb is the base year airframe escalation index Aircraft Basic Price (as set forth in Table 1 Article 3.2 of this Purchase Agreement); ) less the base price of Engines (as defined in this Exhibit D) in the amount of $[Confidential Treatment Requested]. ECI is a = A value determined using the U.S. Department of Labor"Employment Cost Index for workers in aerospace manufacturing" (aircraft manufacturing, standard industrial classification code 3721, compensation, base month and year June 1989 = 100), as released by the Bureau of Labor Statistics, Employment Cost Index U.S. Department of Labor on a quarterly basis for NAICS Manufacturing – Total Compensation (BLS Series ID CIU2013000000000I)the months of March, June, September and December, calculated by establishing a three (3) as follows: A three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) will be determined using the values months set forth in the table below for the 11thapplicable Aircraft, 12th, and 13th months prior to with the released Employment Cost Index value described above for 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 March also being used for the months of January, January and February, and March; the value released for the second quarter will be June also used for the months of April, April and May, and June; the value released for the third quarter will be September also used for the months of July, July and August, ; and September; the value released for the fourth quarter will be December also used for the months of October, October and November, and December. M ICI = **** **** **** Where: CPIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and CPI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Consumer Price Index – All Urban Consumers (BLS Series ID CUUR0000SA0), calculated as a three (3) The three-month arithmetic average of the released monthly values for the Industrial Commodities Index as set forth in the "Producer Prices and Price Index" (Base Year 1982 = 100) as released by the Bureau of Labor Statistics, U.S. Department of Labor values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to set forth in the month of scheduled delivery of table below for the applicable Aircraft. As an example, for an Aircraft scheduled to be delivered in the month of July, the months of June, July, and August of the preceding year will be utilized in In determining the value of L, the ratio of ECI and CPI. Note: (i) In determining the values of L and M, all calculations and resulting values divided by 130.1 will be expressed as a decimal rounded to the nearest ten-thousandth. (iv) The **** (base year indices) are thousandth and then multiplied by .65 with the actual average values reported by the U.S. Department of Labor, Bureau of Labor Statistics. The actual average values are calculated as a three (3) month arithmetic average of the released monthly values (resulting value also expressed as a decimal and rounded to the nearest tenth) using ten-thousandth. In determining the values for the 11th, 12th, and 13th months prior to the airframe base year. The applicable base year and corresponding denominator is provided by Boeing in Table 1 of this Purchase Agreement. (v) The final value of Pa M, the ratio of ICI divided by 123.6 will be expressed as a decimal rounded to the nearest dollar. (vi) The Airframe Price Adjustment will not ten-thousandth and then multiplied by .35 with the resulting value also expressed as a decimal and rounded to the nearest ten-thousandth. Months to be made if it will result Utilized Month of Scheduled in a decrease in Determining the Aircraft Basic PriceDelivery Value of ECI and ICI January June B, July B, Aug. B February July B, Aug. B, Sept. B March Aug. B, Sept. B, Oct. B April Sept. B, Oct. B, Nov. B May Oct. B, Nov. B, Dec. B June Nov. B, Dec. B, Jan. D July Dec. B, Jan. D, Feb. D August Jan. D, Feb. D, Mar. D September Feb. D, Mar. D, Apr. D October Mar. D, Apr. D, May D November Apr. D, May D, June D December May D, June D, July D The following definitions of B and D will apply: B = The calendar year before the year in which the scheduled month of delivery as set forth in Article 2.1 occurs.

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 = **** P Airframe Price Adjustment. (For Models 717-200, 737-600, 737-700, 737-800, 737-900, 777-200LR and 777-300ER the Airframe Price includes the Engine Price at its basic thrust level.) L = **** **** **** **** Where: .65 x (ECI ECIb ) where ECIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement) M = .35 x (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, Bureau of Labor Statistics, Statistics Employment Cost Index for NAICS Manufacturing – Total Compensation (BLS Series ID CIU2013000000000IECU12402I), calculated by establishing a three (3) three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, 12th and 13th 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, February and March; the value released for the second quarter will be used for the months of April, May, May and June; the value released for the third quarter will be used for the months of July, August, August and September; the value released for the fourth quarter will be used for the months of October, November, November and December. M = **** **** **** Where: CPIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and CPI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Statistics Consumer Price Index – All Urban Consumers (BLS Series ID CUUR0000SA0), calculated as a three (3) -month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, 12th and 13th months prior to the month of scheduled delivery of the applicable Aircraft. As an example, for an Aircraft scheduled to be delivered in the month of July, the months of June, July, July and August of the preceding year will be utilized in determining the value of ECI and CPI. 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. (iv) The **** (base year indices) are the actual average values reported by the U.S. Department of Labor, Bureau of Labor Statistics. The actual average values are calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the airframe base year. The applicable base year and corresponding denominator is provided by Boeing in Table 1 of this Purchase Agreement. (v) The final value of Pa will be rounded to the nearest dollar. (vi) The Airframe Price Adjustment will not be made if it will result in a decrease in the Aircraft Basic Price.

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+B)(L + M) - P Where: Pa = **** P Airframe Price Adjustment. (For Model 717-200, 737-600, 737-700, 737-800 and 737-900, the Airframe Price includes the Engine Price at its basic thrust level.) L = **** **** **** **** Where: .65 x ( ECI ----- ECIb )where ECIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement) M = .35 x ( ICI ----- ICIb ); where ICIb 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). B = 0.005 x (N/12) x (P) where N is the calendar month and year of scheduled Aircraft delivery minus the calendar month and year of the Base Price Year, both as shown in Table 1 of this Purchase Agreement. ECI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Statistics "Employment Cost Index for NAICS Manufacturing – Total Compensation workers in aerospace manufacturing - Wages and Salaries" (BLS Series ID CIU2013000000000IECI code 3721W), calculated by establishing a three (3) three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the 11thfifth, 12th, sixth and 13th seventh 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, October and November, and December. M = **** **** **** Where: CPIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and CPI ICI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Consumer Statistics "Producer Prices and Price Index – All Urban Consumers (BLS Series ID CUUR0000SA0)- Industrial Commodities Index ", calculated as a three (3) -month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th5th, 12th, 6th and 13th 7th months prior to the month of scheduled delivery of the applicable Aircraft. As an example, for an Aircraft scheduled to be delivered in the month of JulyJanuary, the months of June, July, July and August of the preceding year will be utilized in determining the value of ECI and CPI. 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-thousandthICI. (iv) The **** (base year indices) are the actual average values reported by the U.S. Department of Labor, Bureau of Labor Statistics. The actual average values are calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the airframe base year. The applicable base year and corresponding denominator is provided by Boeing in Table 1 of this Purchase Agreement. (v) The final value of Pa will be rounded to the nearest dollar. (vi) The Airframe Price Adjustment will not be made if it will result in a decrease in the Aircraft Basic Price.

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. (For Models 737-600, 737-700, 737-800, 737-900, 737-900ER 747-8, 777-200LR, 777-F, and 777-300ER 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 of this Purchase Agreement). L = .65 x (ECI ECIb) Where: ECIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); ECI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Employment Cost Index for NAICS Manufacturing – Total Compensation (BLS Series ID CIU2013000000000I), calculated by establishing a three (3) month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th 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 October, November, and December. M = **** **** **** .35 x (CPI CPIb) Where: CPIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and CPI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Consumer Price Index – All Urban Consumers (BLS Series ID CUUR0000SA0), calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th12th , and 13th months prior to the month of scheduled delivery of the applicable Aircraft. As an example, for an Aircraft scheduled to be delivered in the month of July, the months of June, July, and August of the preceding year will be utilized in determining the value of ECI and CPI. 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. (ii) 65 is the numeric ratio attributed to labor in the Airframe Price Adjustment formula. (iii) 35 is the numeric ratio attributed to materials in the Airframe Price Adjustment formula. (iv) The **** denominators (base year indices) are the actual average values reported by the U.S. Department of Labor, Bureau of Labor Statistics. The actual average values are calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the airframe base year. The applicable base year and corresponding denominator is provided by Boeing in Table 1 of this Purchase Agreement. (v) The final value of Pa will be rounded to the nearest dollar. (vi) The Airframe Price Adjustment will not be made if it will result in a decrease in the Aircraft Basic Price.

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+B)(L + M) - P Where: Pa = **** P Airframe Price Adjustment. (For Models 717-200, 737-600, 737-700, 737-800, 737-900, 777-200X and 777-300X the Airframe Price includes the Engine Price at its basic thrust level.) L = **** **** **** **** Where: .65 x ( ECI ECIb ) where ECIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement) M = .35 x ( ICI ICIb ) where ICIb 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); . B = 0.005 x (N/12) x (P) where N is the number of calendar months which have elapsed from the Airframe Price Base Year and Month up to and including the month of delivery, both as shown in Table 1 of the Purchase Agreement. The entire calculation of 0.005 X (N/12) will be rounded to 4 places, and the final value of B will be rounded to the nearest dollar. ECI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Statistics “Employment Cost Index for NAICS Manufacturing – Total Compensation workers in aircraft manufacturing - Wages and Salaries” (BLS Series ID CIU2013000000000IECI code 3721), calculated by establishing a three (3) month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th 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 October, November, and December. M = **** **** **** Where: CPIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and CPI ICI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Consumer Statistics “Producer Prices and Price Index – All Urban Consumers (BLS Series ID CUUR0000SA0)- Industrial Commodities Index “, calculated as a three (3) -month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th5th, 12th, 6th and 13th 7th months prior to the month of scheduled delivery of the applicable Aircraft. As an example, for an Aircraft scheduled to be delivered in the month of JulyJanuary, the months of June, July, July and August of the preceding year will be utilized in determining the value of ECI and CPI. Note:ICI. (i) 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. (ii. 65 is the numeric ratio attributed to labor in the Airframe Price Adjustment formula. iii. 35 is the numeric ratio attributed to materials in the Airframe Price Adjustment formula. iv) . The **** denominators (base year indices) are the actual average values reported by the U.S. Department of Labor, Bureau of Labor Statistics. The actual average values are calculated as a three Statistics (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the airframe base yearyear June 1989 = 100). The applicable base year and corresponding denominator is provided by Boeing in Table 1 of this Purchase Agreement. (v) v. The final value of Pa will be rounded to the nearest dollar. (vi) . The Airframe Price Adjustment will not be made if it will result in a decrease in the Aircraft Basic Price.

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 the applicable 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 aircraft delivery in accordance with the following formula: **** P(a) = (P+B)(L + M) - P Where: Pa : (a) = **** P Airframe Price Adjustment. (For Model 717-200, 737-600, 737-700, 737-800 and 737-900, the Airframe Price includes the Engine Price at its basic thrust level.) L = **** **** **** **** Where: ECIb .65 x ECI where ECI(b) is the base year airframe escalation index (as set --- forth in Table 1 of the applicable purchase ECI(b) agreement) M = .35 x ICI where ICI(b) is the base year index (as set --- forth in Table 1 of the applicable purchase ICI(b) agreement) P = Airframe Price plus Optional Features Price (as set forth in Table 1 of this Purchase Agreementthe applicable purchase agreement); . ECI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Statistics "Employment Cost Index for NAICS Manufacturing – Total Compensation workers in aerospace manufacturing - Wages and Salaries" (BLS Series ID CIU2013000000000IECI code 3721W), calculated by establishing a three (3) three-month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the 11thfifth, 12th, sixth and 13th seventh months prior to the month of scheduled delivery of the applicable Aircraftaircraft. 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, October and November, and December. M = **** **** **** Where: CPIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and CPI ICI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Consumer Statistics "Producer Prices and Price Index – All Urban Consumers (BLS Series ID CUUR0000SA0)- Industrial Commodities Index ", calculated as a three (3) -month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th5th, 12th, 6th and 13th 7th months prior to the month of scheduled delivery of the applicable Aircraftaircraft. As an example, for an Aircraft aircraft scheduled to be delivered in the month of JulyJanuary, the months of June, July, July and August of the preceding year will be utilized in determining the value of ECI and CPI. 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-thousandthICI. (iv) The **** (base year indices) are the actual average values reported by the U.S. Department of Labor, Bureau of Labor Statistics. The actual average values are calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the airframe base year. The applicable base year and corresponding denominator is provided by Boeing in Table 1 of this Purchase Agreement. (v) The final value of Pa will be rounded to the nearest dollar. (vi) The Airframe Price Adjustment will not be made if it will result in a decrease in the Aircraft Basic Price.

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: **** Where: Pa = **** P = **** **** **** **** Where: ECIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); ECI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Employment Cost Index for NAICS Manufacturing – Total Compensation (BLS Series ID CIU2013000000000I), calculated by establishing a three (3) month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th 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 October, November, and December. M = **** **** **** Where: CPIb is the base year airframe escalation index (as set forth in Table 1 of this Purchase Agreement); and CPI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Consumer Price Index – All Urban Consumers (BLS Series ID CUUR0000SA0), calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the month of scheduled delivery of the applicable Aircraft. As an example, for an Aircraft scheduled to be delivered in the month of July, the months of June, July, and August of the preceding year will be utilized in determining the value of ECI and CPI. 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. (iv) The **** (base year indices) are the actual average values reported by the U.S. Department of Labor, Bureau of Labor Statistics. The actual average values are calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the airframe base year. The applicable base year and corresponding denominator is provided by Boeing in Table 1 of this Purchase Agreement. (v) The final value of Pa will be rounded to the nearest dollar. (vi) The Airframe Price Adjustment will not be made if it will result in a decrease in the Aircraft Basic Price.

Formula. Airframe Base Aircraft Price and Optional Special Features price adjustments (Airframe Aircraft 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 Aircraft Price Adjustment will be determined at the time of Aircraft delivery in accordance with the following formula: **** Pa = (P) (L + M) - P Where: Pa = **** Aircraft Price Adjustment. (For Models 737-600, 737-700, 737-800, 737-900, 737-900ER 747-8, 777-200LR, 777-F, and 777-300ER the Base Aircraft Price includes the engine price at its basic thrust level.) P = **** **** **** **** Base Aircraft Price plus the price of the Special Features (as set forth in Tables 1a and 1b of this Purchase Agreement). L = .65 x (ECI ECIb) Where: ECIb is the base year airframe escalation index (as set forth in Table 1 Tables 1a and 1b of this Purchase Agreement); ECI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Employment Cost Index for NAICS Manufacturing – Total Compensation (BLS Series ID CIU2013000000000I), calculated by establishing a three (3) month arithmetic average value (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th 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 October, November, and December. M = **** **** **** Where: CPIb is the base year airframe escalation index .35 x (as set forth in Table 1 of this Purchase AgreementCPI CPIb); and CPI is a value determined using the U.S. Department of Labor, Bureau of Labor Statistics, Consumer Price Index – All Urban Consumers (BLS Series ID CUUR0000SA0), calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the month of scheduled delivery of the applicable Aircraft. As an example, for an Aircraft scheduled to be delivered in the month of July, the months of June, July, and August of the preceding year will be utilized in determining the value of ECI and CPI. 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. (iv) The **** (base year indices) are the actual average values reported by the U.S. Department of Labor, Bureau of Labor Statistics. The actual average values are calculated as a three (3) month arithmetic average of the released monthly values (expressed as a decimal and rounded to the nearest tenth) using the values for the 11th, 12th, and 13th months prior to the airframe base year. The applicable base year and corresponding denominator is provided by Boeing in Table 1 of this Purchase Agreement. (v) The final value of Pa will be rounded to the nearest dollar. (vi) The Airframe Price Adjustment will not be made if it will result in a decrease in the Aircraft Basic Price.