1
                                                                    EXHIBIT 10.5


[BOEING LETTERHEAD]

6-1162-RLL-2234


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320

Subject:      Special Matters

Reference:    Purchase Agreement Nos. 2022, 2023, 2024, 2025 and 2026 (the
              Purchase Agreement) between The Boeing Company (Boeing) and Delta
              Air Lines, Inc. (Customer) relating to 737-632/-732/-832, 757-232,
              767-332ER/-332, 767-432ER and 777-232IGW aircraft (the Aircraft).

This 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
AGTA and the Purchase Agreements.

A.  MODEL 737-632/-732/-832 AIRCRAFT (P. A. 2022)



              1. *This confidential information has been omitted and filed
       separately with the Commission.





P.A. No.'s 2022, 2023, 2024, 2025 and 2026                     737-632/-732/-832
   2

Delta Air Lines, Inc.
6-1162-RLL-2234  Page 2


              2. *This confidential information has been omitted and filed
              separately with the Commission.







              3. *This confidential information has been omitted and filed
              separately with the Commission.






              4. *This confidential information has been omitted and filed
              separately with the Commission.





              5. *This confidential information has been omitted and filed
              separately with the Commission.





P.A. No.'s 2022, 2023, 2024, 2025 and 2026                     737-632/-732/-832
   3

Delta Air Lines, Inc.
6-1162-RLL-2234  Page 3


       *This confidential information has been omitted and filed separately with
       the Commission.











              6. *This confidential information has been omitted and filed
              separately with the Commission.





P.A. No.'s 2022, 2023, 2024, 2025 and 2026                     737-632/-732/-832
   4

Delta Air Lines, Inc.
6-1162-RLL-2234  Page 4





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.






P.A. No.'s 2022, 2023, 2024, 2025 and 2026                     737-632/-732/-832
   5
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 5




              7. *This confidential information has been omitted and filed
              separately with the Commission.

















              8. *This confidential information has been omitted and filed
              separately with the Commission.





P.A. No.'s 2022, 2023, 2024, 2025 and 2026                     737-632/-732/-832
   6

Delta Air Lines, Inc.
6-1162-RLL-2234  Page 6


              *This confidential information has been omitted and filed
              separately with the Commission.




              9. *This confidential information has been omitted and filed
              separately with the Commission.







P.A. No.'s 2022, 2023, 2024, 2025 and 2026                               757-232
   7

Delta Air Lines, Inc.
6-1162-RLL-2234  Page 7



B.  MODEL 757-232 AIRCRAFT (P. A. 2023)

              1. *This confidential information has been omitted and filed
              separately with the Commission.








              2. *This confidential information has been omitted and filed
              separately with the Commission.








              3. *This confidential information has been omitted and filed
              separately with the Commission.




              4. *This confidential information has been omitted and filed
              separately with the Commission.






P.A. No.'s 2022, 2023, 2024, 2025 and 2026                         757-232      
   8
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 8




              5. *This confidential information has been omitted and filed
              separately with the Commission.



 

              6. *This confidential information has been omitted and filed
              separately with the Commission.








P.A. No.'s 2022, 2023, 2024, 2025 and 2026                      767-332ER/-332
   9
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 9



C.  MODEL 767-332ER/-332 AIRCRAFT (P. A. 2024)

              1. *This confidential information has been omitted and filed
              separately with the Commission.








P.A. No.'s 2022, 2023, 2024, 2025 and 2026                        767-332ER/-332
   10
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 10


              2. *This confidential information has been omitted and filed
              separately with the Commission.









              3. *This confidential information has been omitted and filed
              separately with the Commission.









              4. *This confidential information has been omitted and filed
              separately with the Commission.



              5. *This confidential information has been omitted and filed
              separately with the Commission.






P.A. No.'s 2022, 2023, 2024, 2025 and 2026                        767-332ER/-332
   11

Delta Air Lines, Inc.
6-1162-RLL-2234  Page 11


              6. *This confidential information has been omitted and filed
              separately with the Commission.




                     7. *This confidential information has been omitted and
                     filed separately with the Commission.






P.A. No.'s 2022, 2023, 2024, 2025 and 2026                        767-332ER/-332
   12
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 12




                     *This confidential information has been omitted and filed
                     separately with the Commission.










       8. *This confidential information has been omitted and filed separately
       with the Commission.







       9. *This confidential information has been omitted and filed separately
       with the Commission.






P.A. No.'s 2022, 2023, 2024, 2025 and 2026                        767-332ER/-332
   13



Delta Air Lines, Inc.
6-1162-RLL-2234   Page 13



D.  MODEL 767-432ER AIRCRAFT (P. A. 2025)

       1. *This confidential information has been omitted and filed separately
       with the Commission.








       2. *This confidential information has been omitted and filed separately
       with the Commission.








       3. *This confidential information has been omitted and filed separately
       with the Commission.






P.A. No.'s 2022, 2023, 2024, 2025 and 2026                             767-432ER
   14
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 14


       *This confidential information has been omitted and filed separately with
       the Commission.



       4. *This confidential information has been omitted and filed separately
       with the Commission.




       5. *This confidential information has been omitted and filed separately
       with the Commission.






       6. *This confidential information has been omitted and filed separately
       with the Commission.



       7. *This confidential information has been omitted and filed separately
       with the Commission.



       8. *This confidential information has been omitted and filed separately
       with the Commission.






P.A. No.'s 2022, 2023, 2024, 2025 and 2026                             767-432ER
   15
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 15


       *This confidential information has been omitted and filed separately with
       the Commission.









       10. *This confidential information has been omitted and filed separately
       with the Commission.



       11. *This confidential information has been omitted and filed separately
       with the Commission.






P.A. No.'s 2022, 2023, 2024, 2025 and 2026                             767-432ER
   16
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 16


                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.










P.A. No.'s 2022, 2023, 2024, 2025 and 2026                             767-432ER
   17
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 17


       12. *This confidential information has been omitted and filed separately
       with the Commission.






       13. *This confidential information has been omitted and filed separately
       with the Commission.









P.A. No.'s 2022, 2023, 2024, 2025 and 2026                             767-432ER
   18
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 18



E.  MODEL 777 AIRCRAFT (P. A. 2026)

       The following Special Matters are provided in consideration of
       Customer's exercise of its right to purchase Model 777-232IGW Aircraft
       per Purchase Agreement No. 2026. Boeing will grant Customer certain
       Option and Rolling Option Aircraft delivery positions at that time.

       1. *This confidential information has been omitted and filed separately
       with the Commission.









       2. *This confidential information has been omitted and filed separately
       with the Commission.








       3. *This confidential information has been omitted and filed separately
       with the Commission.








P.A. No.'s 2022, 2023, 2024, 2025 and 2026                            777-232IGW
   19

Delta Air Lines, Inc.
6-1162-RLL-2234  Page 19

       *This confidential information has been omitted and filed separately with
       the Commission.




       4. *This confidential information has been omitted and filed separately
       with the Commission.




       5. *This confidential information has been omitted and filed separately
       with the Commission.







       6. *This confidential information has been omitted and filed separately
       with the Commission.







P.A. No.'s 2022, 2023, 2024, 2025 and 2026                            777-232IGW
   20
Delta Air Lines, Inc.
6-1162-RLL-2234  Page 20


       7. *This confidential information has been omitted and filed separately
       with the Commission.







       8. *This confidential information has been omitted and filed separately
       with the Commission.






P.A. No.'s 2022, 2023, 2024, 2025 and 2026                            777-232IGW
   21

Delta Air Lines, Inc.
6-1162-RLL-2234  Page 21


F.     CUSTOMER SUPPORT TRAINING INVOICE

       Boeing will maintain an accounting of all traditional and Customer unique
       flight and maintenance training used in the aggregate by Customer in
       accordance with the CS1 Supplemental Exhibits to Purchase Agreements
       2022, 2023, 2024, 2025 and 2026 from the Execution Date to November 15,
       2001. Any flight and/or maintenance training requested and used by
       Customer that is not identified in the CS1 Supplemental Exhibits will
       also be included in the accounting of all flight and maintenance
       training. The invoice amount that Customer will pay Boeing will be the
       difference between the dollar value of the Customer unique flight and
       maintenance training used by Customer and the dollar value of any
       traditional flight and maintenance training not used by Customer.
       Customer will be responsible for paying the invoice amount within thirty
       (30) days of receipt of such invoice from Boeing.






P.A. No.'s 2022, 2023, 2024, 2025 and 2026
   22

Delta Air Lines, Inc.
6-1162-RLL-2234  Page 22






Very truly yours,

THE BOEING COMPANY


By  /s/ R.B. Woodard
   ---------------------------------------

Its          President
   ---------------------------------------


ACCEPTED AND AGREED TO:

Date:        October 21, 1997
      ------------------------------------


DELTA AIR LINES, INC.


By  /s/ Leo F. Mullin
   ---------------------------------------

Its  President and Chief Executive Officer
    --------------------------------------






P.A. No.'s 2022, 2023, 2024, 2025 and 2026
   23



[BOEING LETTERHEAD]

6-1162-RLL-2245


Delta Air Lines Inc.
Hartsfield Atlanta International Airport
Atlanta,  Georgia 30320

Subject:          Certain Contractual Matters

Reference:        Purchase Agreement Nos. 2022, 2023, 2024, 2025, 2026
                  (the Purchase Agreements) between The Boeing Company
                  (Boeing) and Delta Air Lines Inc. (Customer) relating to
                  Model 737-632/-732/-832, 757-232, 767-332ER/-332,
                  767-432ER, 777-232IGW aircraft

This Letter Agreement is entered into on the date below, and amends and
supplements the AGTA and Purchase Agreements. All terms used but not defined in
this Letter Agreement have the same meaning as in the AGTA and the Purchase
Agreements.



                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.




P.A. Nos. 2022, 2023, 2024, 2025, 2026
   24

Delta Air Lines, Inc.
6-1162-RLL-2245  Page 2

                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.






P.A. Nos. 2022, 2023, 2024, 2025, 2026
   25

Delta Air Lines, Inc.
6-1162-RLL-2245  Page 3




                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.






P.A. Nos. 2022, 2023, 2024, 2025, 2026
   26
Delta Air Lines, Inc.
6-1162-RLL-2245  Page 4


                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.






P.A. Nos. 2022, 2023, 2024, 2025, 2026
   27
Delta Air Lines, Inc.
6-1162-RLL-2245  Page 5


                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.







P.A. Nos. 2022, 2023, 2024, 2025, 2026
   28
Delta Air Lines, Inc.
6-1162-RLL-2245  Page 6




Very truly yours,

THE BOEING COMPANY


By  /s/R.B. Woodard
   ---------------------------------------

Its              President
   ---------------------------------------


ACCEPTED AND AGREED TO:

Date:      October 21, 1997
      ------------------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
     -------------------------------------

Its  President and Chief Executive Officer
     -------------------------------------








P.A. Nos. 2022, 2023, 2024, 2025, 2026
   29


[BOEING LETTERHEAD]

6-1162-RLL-2198

Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320

Subject:     *This confidential information has been omitted and filed 
separately with the Commission.

Reference:   Purchase Agreement Nos. 2022, 2023, 2024, 2025, 2026 (the 
             Agreements) between The Boeing Company (Boeing) and Delta Air 
             Lines, Inc. (Customer) relating to Model 737-632/-732/-832, 
             757-232, 767-332ER/-332, 767-432ER, and 777-232IGW Aircraft (the
             Aircraft).

                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.









P.A. Nos. 2022, 2023, 2024, 2025, 2026
   30


Delta Air Lines, Inc.
6-1162-RLL-2198 Page 2




                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.






P.A. Nos. 2022, 2023, 2024, 2025, 2026
   31


Delta Air Lines, Inc.
6-1162-RLL-2198 Page 3




                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.





P.A. Nos. 2022, 2023, 2024, 2025, 2026
   32


Delta Air Lines, Inc.
6-1162-RLL-2198 Page 4




                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.








P.A. Nos. 2022, 2023, 2024, 2025, 2026
   33


Delta Air Lines, Inc.
6-1162-RLL-2198 Page 5


                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.

Very truly yours,

THE BOEING COMPANY

By   /s/ R.B. Woodard
     -------------------------------------

Its      President
     -------------------------------------


ACCEPTED AND AGREED TO:

Date:         October 21                   , 1997
      ------------------------------------

DELTA AIR LINES, INC.

By   /s/ Leo F. Mullin
     -------------------------------------

Its  President and Chief Executive Officer
     -------------------------------------






P.A. Nos. 2022, 2023, 2024, 2025, 2026
   34
                                    Table A

                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.

                                    Page 1


   35


                                    Table A

                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.

                                    Page 2


   36



                                    Table B

                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.

                                     Page 1
   37



                                    Table B

                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.

                                    Page 2
   38


[BOEING LETTERHEAD]

6-1162-RLL-2242

Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320

Subject:     1997 and 1998 Escalation Sharing

Reference:   Purchase Agreement Nos. 2022, 2023, 2024 and 2025 (the Purchase 
             Agreements) between The Boeing Company (Boeing) and Delta Air 
             Lines, Inc. (Customer) relating to Model 737-632/-732/-832, 
             757-232, 767-332/332ER, and 767-432ER aircraft (the Aircraft)

This 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
AGTA and the Purchase Agreement.

1.       Escalation Sharing Commitment.

         Boeing agrees to share one-half of the escalation up to a maximum of
three (3) percent per year in each of the calendar years 1997 and 1998 (the
Sharing Credit), as set forth in paragraph 2 below, for any of the Aircraft
scheduled to be delivered after December 31, 1996. For the purpose of this
Letter Agreement such Aircraft are referred to as "Eligible Aircraft".

All escalation calculations under this Letter Agreement will be made in
accordance with Exhibit D to the AGTA entitled "Escalation Adjustment Airframe
and Optional Features" (Exhibit D), using actual escalation indices published
for the applicable period. The Sharing Credit, if applicable, will be provided
as a credit memorandum taken against the Aircraft Price on the invoice at time
of delivery of such Aircraft.

2.       Escalation Credit Memo.

         2.1         Aircraft Scheduled to be Delivered prior to 1997.

         No escalation sharing credit memorandum is provided for Aircraft
scheduled to be delivered prior to January 1, 1997.



P.A. Nos. 2022, 2023, 2024 and 2025
   39
Delta Air Lines, Inc.
6-1162-RLL-2242 Page 2

         2.2         Eligible Aircraft Scheduled to be Delivered in 1997.

         At the time of delivery of each Eligible Aircraft scheduled to be
delivered in 1997, Boeing will issue to Customer a credit memorandum (the 1997
Sharing Credit) equal to one-half of the difference between the airframe and
optional features escalation amount calculated for an assumed December 1996
delivery month (the 1996 Base Month) and the escalation amount calculated for
the actual month in 1997 the Aircraft is scheduled to be delivered. The total
credit percentage will be limited to a maximum of three (3) percent.

The 1997 Sharing Credit will be determined as follows, utilizing the provisions
of Exhibit D to establish the required escalation factors, including the
provisions related to the rounding of the calculated factors to four decimal
places:

(a)   Determine the escalation factor for the 1996 Base Month and define such
        factor as "A".

(b)   Determine the escalation factor for the actual month in 1997 that the
        Aircraft is scheduled to be delivered (the 1997 Actual Factor) and
        divide such 1997 Actual Factor by "A". If the resultant (i) is equal to
        or less than 1.0600, subtract 1.0000, divide by 2.0000 and add 1.0000
        or (ii) is greater than 1.0600, subtract .0300. Define the resultant
        factor from either (i) or (ii) as "B".

(c)   Determine the adjusted escalation factor for the month in 1997 the
        Aircraft is scheduled to be delivered by multiplying "A" times "B" (the
        1997 Adjusted Factor). The 1997 Sharing Credit is determined by
        multiplying the Airframe Price and Optional Features Price times the
        difference between the 1997 Adjusted Factor and the 1997 Actual Factor.

         2.3         Eligible Aircraft Scheduled to be Delivered in 1998.

         At the time of delivery of each Eligible Aircraft scheduled to be
delivered in 1998, Boeing will issue to Customer a credit memorandum (the 1998
Sharing Credit) equal to (i) an amount calculated pursuant to paragraph 2.2
above as if the actual month in 1997 the Aircraft is scheduled to deliver is
December 1997 plus (ii) one-half of the difference between the airframe and
optional features escalation amount calculated for such assumed December 1997
delivery month (the 1997 Base Month) and the amount calculated for the actual
month in 1998 the Aircraft is scheduled to be delivered. The total credit
percentage will be limited to a maximum of three (3) percent.

The 1998 Sharing Credit will be determined as follows, utilizing the provisions
of Exhibit D to establish the required escalation factors, including the
provisions related to the rounding of the calculated factors to four decimal
places:



P.A. Nos. 2022, 2023, 2024 and 2025
   40
Delta Air Lines, Inc.
6-1162-RLL-2242 Page 3




(a)   Determine the escalation factor for both the 1996 Base Month (the 1996
        Base Factor) and the 1997 Base Month (the 1997 Base Factor) and divide
        such 1997 Base Factor by such 1996 Base Factor. If the resultant (i) is
        equal to or less than 1.0600, subtract 1.0000, divide by 2.0000 and add
        1.0000 or (ii) is greater than 1.0600, subtract .0300. Define the
        resultant factor from either (i) or (ii) as "B".

(b)   Determine the escalation factor for the actual month in 1998 that the
        Aircraft is scheduled to be delivered (the 1998 Actual Factor) and
        divide such factor by the 1997 Base Factor. If the resultant (i) is
        equal to or less than 1.0600, subtract 1.0000, divide by 2.0000 and add
        1.0000 or (ii) is greater than 1.0600, subtract .0300. Define the
        resultant factor from either (i) or (ii) as "C".

(c)   Determine the adjusted escalation factor for the actual month in 1998
        the Aircraft is scheduled to be delivered by multiplying "A" times "B"
        times "C" (the 1998 Adjusted Factor). The 1998 Sharing Credit is
        determined by multiplying the airframe and optional features escalation
        amount times the difference between the 1998 Adjusted Factor and the
        1998 Actual Factor.

         2.4         Eligible Aircraft Scheduled to be Delivered after 1998.

         At the time of delivery of each Eligible Aircraft scheduled to be
delivered after calendar year 1998, Boeing will issue to Customer a credit
memorandum (the Post-1998 Sharing Credit) equal to an amount calculated
pursuant to paragraph 2.3 above as if the actual month in 1998 the Aircraft is
scheduled to be delivered is December 1998, plus (ii) the airframe and optional
features escalation amount calculated for such assumed December 1998 delivery
month (the 1998 Base Month) and the amount calculated for the actual month the
Aircraft is scheduled to be delivered.

The Post-1998 Sharing Credit will be determined as follows, utilizing the
provisions of Exhibit D to establish the required escalation factors, including
the provisions related to the rounding of the calculated factors to four
decimal places:

(a)   Determine the escalation factor for both the 1996 Base Month (the 1996
        Base Factor) and the 1997 Base Month (the 1997 Base Factor) and divide
        such 1997 Base Factor by such 1996 Base Factor. If the resultant (i) is
        equal to or less than 1.0600, subtract 1.0000, divide by 2.0000 and add
        1.0000 or (ii) is greater than 1.0600, subtract .0300. Define the
        resultant factor from either (i) or (ii) as "B".

(b)   Determine the escalation factor for the 1998 Base Month (the 1998 Base
        Factor) and divide such 1998 Base Factor by the 1997 Base Factor. If
        the 


P.A. Nos. 2022, 2023, 2024 and 2025
   41

Delta Air Lines, Inc.
6-1162-RLL-2242 Page 4


        resultant (i) is equal to or less than 1.0600, do not adjust the
        factor or (ii) is greater than 1.0600, subtract .0300. Define 
        the resultant factor from either (i) or (ii) as "C".

(c)   Determine the escalation factor for the actual month after 1998 that
        the Aircraft is scheduled to be delivered (the Post-1998 Actual Factor)
        and divide such factor by the 1998 Base Factor. Define the resultant
        factor as "D".

(d)   Determine the adjusted escalation factor for the actual month after
        1998 the Aircraft is scheduled to be delivered by multiplying "A" times
        "B" times "C" times "D" (the Post-1998 Adjusted Factor). The Post-1998
        Sharing Credit is determined by multiplying the Airframe Price and
        Optional Features Price times the difference between the Post-1998
        Adjusted Factor and the Post-1998 Actual Factor.

3.       Revision of Advance Payment Base Price.

         The Advance Payment Base Prices set forth in Table 1 for each Eligible
Aircraft reflect the above escalation sharing formulation.



P.A. Nos. 2022, 2023, 2024 and 2025
   42

Delta Air Lines, Inc.
6-1162-RLL-2242 Page 5


4.           Credits Expressed as a Percentage.

             It is agreed that any credit memoranda specified in Letter
Agreements Numbers, 6-1162-RLL-2234 which is expressed as a percentage or
subject to escalation per the provisions of Exhibit D, will be based on the
Airframe Price escalated per the escalation provisions set forth in Exhibit D
as adjusted by utilizing the escalation sharing calculations set forth in this
Letter Agreement.

Very truly yours,

THE BOEING COMPANY

By  /s/ R.B. Woodard
    -------------------------------------

Its     President
    -------------------------------------

ACCEPTED AND AGREED TO:

Date:   October 21           , 1997
      -----------------------

DELTA AIR LINES, INC.

By   /s/ Leo F. Mullin
    -------------------------------------

Its President and Chief Executive Officer
    -------------------------------------


P.A. Nos. 2022, 2023, 2024 and 2025
   43
[BOEING LETTERHEAD]

6-1162-RLL-2243


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320


Subject:          *This confidential information has been omitted and filed 
separately with the Commission.

Reference:        Purchase Agreement Nos. 2022, 2023, 2024, 2025, and 2026 (the
                  Purchase Agreements) between The Boeing Company (Boeing) and
                  Delta Air Lines Inc. (Customer) relating to Model
                  737-632/-732/-832, (737 Aircraft), 757-232, (757 Aircraft),
                  767-332(767-332 Aircraft), 767-332ER (767-332ER Aircraft),
                  767-432ER, (767-432ER Aircraft) and 777-232IGW aircraft (777
                  Aircraft)

This Letter Agreement amends and supplements the Purchase Agreements. All terms
used but not defined in this Letter Agreement have the same meaning as in the
AGTA and the Purchase Agreements.




                           *This confidential information 
                           has been omitted and filed 
                           separately with the Commission.



P.A. Nos. 2022, 2023, 2024, 2025 and 2026
   44
Delta Air Lines, Inc.
6-1162-RLL-2243  Page 2






                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.



P.A. Nos. 2022, 2023, 2024, 2025 and 2026
   45
Delta Air Lines, Inc.
6-1162-RLL-2243  Page 3






                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.






Very truly yours,

THE BOEING COMPANY


By  /s/ R. B. Woodard
  ---------------------------------------------

Its             President
   ------------------------------------------

ACCEPTED AND AGREED TO:

Date:       October 21      , 1997
      ----------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
  ---------------------------------------------

Its  President and Chief Executive Officer
    ---------------------------------------


P.A. Nos. 2022, 2023, 2024, 2025 and 2026
   46
[BOEING LETTERHEAD]

6-1162-RLL-2241


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320


Subject:   *This confidential information has been omitted and filed separately
with the Commission.

Reference: Purchase Agreement Nos. 2022, 2024, 2025 and 2026 (the Purchase
           Agreements) between The Boeing Company (Boeing) and Delta Air Lines,
           Inc. (Customer) relating to Model 737-632/-732/-832, 767-332ER/332,
           767-432ER and 777-232IGW aircraft (the Aircraft)


This Letter Agreement amends and supplements the Purchase Agreements. All terms
used but not defined in this Letter Agreement have the same meaning as in the
AGTA and the Purchase Agreements.

                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.









P.A. Nos. 2022, 2024, 2025 and 2026
   47

Delta Air Lines, Inc.
6-1162-RLL-2241   Page 2



                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.


Very truly yours,

THE BOEING COMPANY


By  /s/ R. B. Woodard
    -------------------------------------------------------

Its                      President
   --------------------------------------------------------

ACCEPTED AND AGREED TO:

Date:          October 21            , 1997
      -------------------------------    
DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
  ---------------------------------------------------------
Its  President and Chief Executive Officer
    -------------------------------------------------------






P.A. Nos. 2022, 2024, 2025 and 2026
   48
[BOEING LETTERHEAD]

6-1162-RLL-2244

Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta,  Georgia 30320

Subject:   *This confidential information has been omitted and filed separately
with the Commission.

Reference: Purchase Agreement Nos. 2022, 2024 and 2025, (the Agreements) between
           The Boeing Company (Boeing) and Delta Air Lines, Inc. (Customer)
           relating to Model 737-632/-732/-832, 767-332ER/-332 and 767-432ER
           (the Aircraft)

This Letter Agreement amends and supplements the Agreements. All terms used but
not defined in this Letter Agreement have the same meaning as in the AGTA and
the Purchase Agreements.


1. *This confidential information has been omitted and filed separately with
the Commission.



Very truly yours,

THE BOEING COMPANY


By   /s/ R. B. Woodard
  -----------------------------------------------
Its                      President
   ----------------------------------------------

ACCEPTED AND AGREED TO:

Date:          October 21            , 1997
      -------------------------------
DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
   -----------------------------------------------
Its  President and Chief Executive Officer
    ----------------------------------------------





P.A. Nos. 2022, 2024,and 2025
   49
[BOEING LETTERHEAD]

6-1162-RLL-2247


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320

Subject: *This confidential information has been omitted and filed separately
with the Commission.

Reference: Purchase Agreement No. 2022, 2023, 2024, 2025,and 2026 (the Purchase
     Agreements) between The Boeing Company (Boeing) and Delta Air Lines, Inc.
     (Customer) relating to Model 737-632/-732/-832, 757-232, 767-332/-332ER,
     767-432ER and 777-232IGW aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreements. All terms
used but not defined in this Letter Agreement have the same meaning as in the
AGTA and the Purchase Agreements.



                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.







P.A. Nos. 2022, 2023, 2024, 2025 and 2026
   50

Delta Air Lines, Inc.
6-1162-RLL-2247   Page  2


                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.










P.A. Nos. 2022, 2023, 2024, 2025 and 2026
   51

Delta Air Lines, Inc.
6-1162-RLL-2247   Page  3


                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.





Very truly yours,

THE BOEING COMPANY


By   /s/ R. B. Woodard
  -----------------------------------------------

Its                      President
     --------------------------------------------

ACCEPTED AND AGREED TO:

Date:         October 21             , 1997
      -------------------------------
DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
    ---------------------------------------------
Its  President and Chief Executive Officer
     --------------------------------------------









P.A. Nos. 2022, 2023, 2024, 2025 and 2026
   52

[BOEING LETTERHEAD]

6-1162-RLL-2251


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320

Subject:          *This confidential information has been omitted and filed
                  separately with the Commission.

Reference:        Purchase Agreement Nos. 2022, 2023, 2024, 2025, 2026 (the
                  Purchase Agreements) between The Boeing Company (Boeing) and
                  Delta Air Lines, Inc. (Customer) relating to Model
                  737-632/-732/-832, 757-232, 767-332ER/-332, 767-432ER,
                  777-232IGW aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreements. All terms
used but not defined in this Letter Agreement have the same meaning as in the
AGTA and the Purchase Agreements




                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.














P.A. Nos. 2022, 2023, 2024, 2025 and 2026
   53



Delta Air Lines, Inc.
6-1162-RLL-2251  Page 2



                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.






Very truly yours,

THE BOEING COMPANY


By   /s/ R. B. Woodard
   ---------------------------------------
Its        President
    --------------------------------------

ACCEPTED AND AGREED TO:

Date:       October 21            , 1997
      ---------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
   ---------------------------------------

Its  President and Chief Executive Officer
    --------------------------------------










P.A. Nos. 2022, 2023, 2024, 2025 and 2026


   54



[BOEING LETTERHEAD]

6-1162-RLL-2147


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta,  Georgia 30320

Subject:          *This confidential information has been omitted and filed
                  separately with the Commission.

Reference:        Purchase Agreement No. 2022 (the Purchase Agreement) between
                  The Boeing Company (Boeing) and Delta Air Lines, Inc.
                  (Customer) relating to Model 737-632/-732/-832 aircraft (the
                  Aircraft)

This Letter Agreement amends the Purchase Agreement and Exhibit C of the AGTA.
All terms used but not defined in this Letter Agreement have the same meaning as
in the Purchase Agreement and AGTA.




                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.












P.A. No. 2022

   55



Delta Air Lines, Inc.
6-1162-RLL-2147  Page 2





                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.


























P.A. No. 2022

   56



Delta Air Lines, Inc.
6-1162-RLL-2147  Page 3




                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.




























P.A. No. 2022

   57



Delta Air Lines, Inc.
6-1162-RLL-2147  Page 4




                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.




































P.A. No. 2022

   58



Delta Air Lines, Inc.
6-1162-RLL-2147  Page 5





                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.






























P.A. No. 2022

   59



Delta Air Lines, Inc.
6-1162-RLL-2147  Page 6





                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.
























P.A. No. 2022


   60



Delta Air Lines, Inc.
6-1162-RLL-2147  Page 7


                  4.1.2    If the Program is determined to be non-compliant,
Customer will, upon request, submit to Boeing sufficient information reasonably
required by Boeing to allow Boeing:

         (a)      To verify cost elements of the Actual Maintenance Cost as
                  defined in paragraph 3.4,

         (b)      To verify the Fleet, Fleet Hours, and the Actual Average
                  Flight Time per flight,

         (c)      To analyze the problems causing such non-compliance,

         (d)      To develop, when required, appropriate remedial action.

                  4.1.3    All reports submitted to Boeing will be addressed to
the attention of:

         Director - Product Assurance Contracts
         Boeing Commercial Airplane Group
         P.O. Box 3707  Mail Stop 76-02
         Fax: 206-237-1706
         Seattle, Washington  98124-2207

         4.2      Boeing's Obligation under the Program.

                  4.2.1    Boeing will report to Customer within 30 days after
receiving Customer's report for each Reporting Period, the following data for
that Reporting Period (see Attachment C):

         (a)      Target Maintenance Cost,
         (b)      Cumulative Average Target Maintenance Cost,
         (c)      Actual Maintenance Cost (as adjusted for the amount of
                  Subcontracted Maintenance),
         (d)      Cumulative Average Actual Maintenance Cost,
         (e)      Material price inflation factor,

                  4.2.2    At Customer's request, Boeing will provide Customer
sufficient information to verify the data described in paragraph 4.2.1 and the
calculations used to produce that data. 









P.A. No. 2022

   61

Delta Air Lines, Inc.
6-1162-RLL-2147  Page 8


                  4.2.3    All reports submitted to Customer will be addressed
to the attention of:

Delta Air Lines, Inc.
Technical Operations Division Controller
Department 217
P.O. Box 20706
Atlanta, GA 30320

         4.3      Corrective Action.

                  If the Program is non-compliant under paragraph 3.5 and
Customer provides its reports to Boeing pursuant to paragraph 4.1, then Boeing
will:

                  4.3.1.   Facilitate a meeting with the Customer to determine
the exact problem(s) causing the increase in cost and

                  4.3.2.   Within forty-five (45) days from the date of the
meeting, produce a plan to investigate and resolve the possible causes of
noncompliance determined in the meeting with the intent to minimize the time
required to implement the corrective action.

                  4.3.3.   Provide technical assistance to Customer in the form
of analysis and recommendations of a kind and nature which Boeing determines to
be best suited for reducing Actual Maintenance Cost.

                  4.3.4.   If necessary, initiate a design review of the
systems, accessories, equipment or parts determined by Boeing and Customer to be
the primary cause of the non compliance and, when in Boeing's judgment a
redesign is indicated as a technically and economically practicable means of
attaining Program compliance, Boeing will, with Customer's concurrence, redesign
or cause the redesign of such items, and

                  4.3.5.   If such redesign results in retrofit kits being
offered by Boeing or Boeing's suppliers, Boeing will provide such kits or cause
such kits to be provided at no charge to Customer. Such retrofit kits will be
provided as soon as practical, considering reasonable design and manufacturing
lead times. Boeing will also reimburse, at Boeing's then existing Warranty labor
rate, Customer's reasonable direct labor costs for incorporation of any such kit
manufactured to Boeing's, or Boeing's supplier's, detailed design. Such
reimbursement will be provided pursuant to Exhibit C, Product Assurance
Document, of the AGTA.













P.A. No. 2022


   62



Delta Air Lines, Inc.
6-1162-RLL-2147  Page 9


         4.3.6.   *This confidential information has been omitted and filed
separately with the Commission.






5.       Corrective Action Conditions and Limitations.

         5.1      If, with the intent of reducing Covered Maintenance Costs,
Boeing or any supplier issues service bulletins, service letters or other
written instructions or offers no-charge retrofit kits ("Correction"), Customer
will comply with such instructions or install such kits within a period of 240
days after issuance of such instructions or receipt of such kits, at Customer's
facility, or such longer period as may be mutually agreed by the parties. If
Customer is otherwise required to complete the Correction and does not do so in
accordance with requirements of this paragraph, all airframe maintenance costs
which Boeing reasonably determines would have been eliminated if such Correction
had been incorporated, will be subtracted from the Actual Maintenance Costs
reported after expiration of such requirements.

         5.2      Customer will promptly notify Boeing in writing of any
variations in its maintenance cost accounting system or procedures which would
have a materiel affect on Customer's reported Actual Maintenance Costs. Boeing
will have the right to make adjustments to the Cumulative Average Target
Maintenance Cost to reflect the effect of any such variations.

         5.3      Upon reasonable notice to Customer, Boeing will have the right
to audit all Actual Maintenance Costs reported by Customer, as well as the
maintenance practices and procedures related thereto during the Program Term.
Boeing will also have the right to disapprove costs it deems improperly
reported. Boeing will provide Customer written notification of its disapproval
of any such costs, and if Customer does not provide proof that such costs are
properly chargeable within 60 days after such notification, Boeing's disapproval
will be deemed final and conclusive and Boeing may deduct such costs from the
computation of Actual Maintenance Costs.



















P.A. No. 2022


   63



Delta Air Lines, Inc.
6-1162-RLL-2147  Page 10



         5.4      Upon reasonable notice to Customer, Boeing may inspect
Customer's maintenance facilities, programs and procedures. If Boeing recommends
in writing reasonable changes to Customer's maintenance programs and procedures
which would reduce Actual Maintenance Costs and Customer does not implement such
changes or Customer delays implementing such changes beyond the period set forth
in paragraph 5.1, Boeing will have the right to adjust the Actual Maintenance
Costs that have been reported to deduct the increased maintenance costs which
Boeing estimates resulted from Customer's failure or delay in implementing such
changes.

         5.5      The Actual Maintenance Cost will not include the following:

                  (a)      Costs arising from loss of, or damage to, any Covered
                           Aircraft, or any system, accessory, equipment or part
                           thereof.

                  (b)      Any taxes, duties, tariffs, surcharges,
                           transportation, insurance interest or overhead.

                  (c)      The cost of initial or sustaining spare parts or the
                           depreciation of such spare parts; costs resulting
                           from any modification to the Covered Aircraft or any
                           system, equipment, accessory or part thereof other
                           than modifications described under paragraphs 4.3.5
                           and 5.1 herein.

                  (d)      Costs resulting from the negligent acts or omissions
                           of Customer.

                  (e)      Costs resulting from the failure to comply with
                           Boeing's or Boeing's suppliers' applicable written
                           instructions for the operation, service, maintenance
                           or overhaul of any Covered Aircraft, or any system,
                           accessory, equipment or part thereof.

                  (f)      Costs attributable to loss of use, revenue or profit.

                  (g)      Costs of consumable fluids, including fuel.

                  (h)      Costs due to acts of God, war, armed hostilities,
                           riots, fires, floods, earthquakes or serious
                           accidents, Governmental acts or failure to act
                           affecting materials, facilities or Aircraft needed
                           for the maintenance of Covered Aircraft.
















P.A. No. 2022


   64



Delta Air Lines, Inc.
6-1162-RLL-2147  Page 11



                  (i)      Costs due to strikes or labor troubles causing
                           cessation, slowdown or interruption of work related
                           to the maintenance of Covered Aircraft.

                  (j)      Costs resulting from failure of or delay in
                           transportation or inability, after due and timely
                           diligence, to procure materials, systems,
                           accessories, equipment or parts needed for the
                           maintenance of Covered Aircraft.

                  (k)      Amounts for any part provided by Boeing or Boeing's
                           suppliers to Customer at no charge.

                  (l)      Amounts equal to the difference between the reported
                           price for any part and the reduced price for such
                           part as provided by Boeing or Boeing's suppliers to
                           Customer.

                  (m)      Amounts related to any warranty, maintenance cost
                           guarantee, or similar agreement, for which there is a
                           credit memorandum or other payment scheme,
                           established in Customer's favor, and issued by Boeing
                           or Boeing's suppliers to Customer.

         5.6      The program will be suspended if during any Period the average
utilization for the Covered Aircraft is less than 2,000 flight hours. The
Program will resume on the first day of any subsequent Reporting Period during
which the average utilization for the Covered Aircraft exceeds that set forth
above. The Cumulative Average Reporting Cost as of any Reporting Period during
the Program Term will exclude all Actual Maintenance Cost and Fleet Hours
accumulated during any Reporting Period in which the program was suspended as
provided above. The program will not be extended to reflect any period wherein
it was suspended.

         5.7      At Boeing's request, Customer will assign to Boeing, any of
Customer's rights against the manufacturer of any equipment, accessory or part
installed in the Covered Aircraft as Boeing may reasonably require to fulfill
its obligations with respect to any corrective action provided by Boeing
hereunder.

         5.8      THIS LETTER AGREEMENT AND THE RIGHTS AND REMEDIES OF CUSTOMER
AND OBLIGATIONS OF BOEING HEREIN ARE SUBJECT TO THE DISCLAIMER AND RELEASE, AND
EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES PROVISIONS OF EXHIBIT C, PRODUCT
ASSURANCE DOCUMENT, OF THE AGTA.












P.A. No. 2022


   65



Delta Air Lines, Inc.
6-1162-RLL-2147  Page 12


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/ R. B. Woodard
   -----------------------------------

Its             President
   -----------------------------------


ACCEPTED AND AGREED TO:

Date:       October 21         , 1997
      -------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
   ---------------------------------------------
   
Its  President and Chief Executive Officer
   -----------------------------------------

Attachments
















P.A. No. 2022

   66




Delta Air Lines, Inc.
Attachment A to
6-1162-RLL-2147  Page 1




                           Attachment A - Adjustments

For each reporting period, Boeing will calculate Target Maintenance Costs by
revising the Projected Target Maintenance Cost to reflect actual data for the
following parameters:

Material Price Inflation

Material prices will be adjusted using Producer Price Indexes as defined below.
The Target Material Cost for a Reporting Period will be calculated by
multiplying the projected target material cost by the ratio of the average index
for the Reporting Period to the index related to the projected target material
cost.

The measure of material price inflation will be the Producer Price Index for
"Aircraft Parts and Auxiliary Equipment, n.e.c." (Standard Industrial
Classification Code 3728). This index will be obtained from the publication
"Producer Prices and Price Indexes" published by the U.S. Department of Labor,
Bureau of Labor Statistics or any comparable successor publication published by
the U.S. Department of Labor, Bureau of Labor Statistics or any comparable
successor agency.

Labor Cost

The projected target labor cost will be adjusted to reflect Customer's actual
Labor Cost. The Target Labor Cost will be calculated by multiplying the
Projected Target Labor Cost by the ratio of Customer's then-current Labor Rate
to the Labor Rate used to calculate the projected target labor cost for that
Reporting Period.

Airframe Maintenance Performed by Others (Subcontracted Maintenance)

The Projected Target Material Cost and Projected Target Labor Cost assume that
Subcontracted Maintenance will be no more than the Cumulative Average Reported
Cost as of any reporting period. If Subcontracted Maintenance amounts to more
than the Cumulative Average Actual Maintenance Cost as of any reporting period,
Boeing reserves the right to revise the Target Material Cost and Target Labor
Cost for that Reporting Period accordingly.

To adjust Subcontracted Maintenance to Customer's equivalent direct labor and
direct material costs, Subcontracted Maintenance will be reduced by TBD percent
before it is distributed to Direct Labor and Direct Material.











P.A. No. 2022


   67



Delta Air Lines, Inc.
Attachment A to
6-1162-RLL-2147  Page 2


Covered Aircraft

The Projected Target Maintenance Costs are based on the number of Covered
Aircraft. If the number of Covered Aircraft changes during any Reporting Period,
Boeing reserves the right to incorporate such change when calculating the Target
Maintenance Costs for that Reporting Period.

Delivery Schedule

The Projected Target Maintenance Costs are based on the delivery schedule of
Covered Aircraft as described in Article 2 of the Purchase Agreement. If the
delivery schedule for the Covered Aircraft changes during any Reporting Period,
Boeing reserves the right to incorporate such change when calculating the Target
Maintenance Costs for that Reporting Period.

Average Flight Time

If the Actual Average Flight Time (AAFT) for any Reporting Period differs from
the Projected Average Flight Time (PAFT) of * hours, the Target Material Cost
(TMC) and Target Labor Cost (TLC) for that reporting period will be adjusted as
follows:

                                                      .65  +
              TMC for AAFT = TMC for PAFT X           AAFT   .35
                                                      ----------
                                                      .65  +
                                                      PAFT   .35


                                                      .54  +
              TLC for AAFT = TLC for PAFT X           AAFT   .46
                                                      ----------
                                                      .54  +
                                                      PAFT   .46

Note: The adjustment formula set forth above is obtained from the publication
"Airframe Maintenance Analysis of IATA PPM (Production Performance Measurements)
Maintenance Cost Data".

Utilization

         *This confidential information as been omitted and filed separately
with the Commission.









P.A. No. 2022


   68



Delta Air Lines, Inc.
Attachment A to
6-1162-RLL-2147  Page 3



Covered Aircraft Configuration

The Target Maintenance Cost set forth in this Program is based on the
configuration for the Covered Aircraft as set forth in Exhibit A to the Purchase
Agreement. Such Target Maintenance Cost may be adjusted by Boeing to
appropriately reflect any changes to the actual configuration of the Covered
Aircraft at the time of delivery thereof to Customer. Adjustments to such Target
Maintenance Cost may also be made at any time during the Program Term to reflect
any additional changes in the configuration of the Covered Aircraft.























P.A. No. 2022


   69




Delta Air Lines, Inc.
Attachment B to
6-1162-RLL-2147  Page 1



To:        Director - Product Assurance Contracts
           Boeing Commercial Airplane Group
           P.O. Box 3707   Mail Stop 76-02
           Fax: 206-237-1706
           Seattle, Washington  98124-2207

Subject:   Letter Agreement No. 6-1162-RLL-2147 to Purchase Agreement No. 2022
           Airframe Maintenance Cost Protection Program

Reported herein are certain data required under paragraph 4.1.1 of the
referenced Letter Agreement.

Reporting Period No.
                     ---------

Beginning date           ending date          
               ---------             ----------

Currency of the costs shown below:             
                                   ------------



                                  Direct          Direct       Subcontracted
               Actual             Labor          Material       Maintenance
         Maintenance Costs     (total cost)    (total cost)     (total cost)
- --------------------------------------------------------------------------------
                                                      
Scheduled
Maintenance
- --------------------------------------------------------------------------------
Non-Scheduled Maintenance
- --------------------------------------------------------------------------------
Repair &
Overhaul
- --------------------------------------------------------------------------------
Modifications
(ref. para.
4.3 & 5.1)
- --------------------------------------------------------------------------------
Total


The above labor costs are exclusive of time consumed by employees while waiting
for work, traveling to or from work, training, vacation, sick leave, or in any
other similar absences from the actual maintenance work. The above material
costs exclude all costs described in paragraph 5 of the referenced Letter
Agreement.



 Average per        Average per              Average             Total per
   manhour             flight               number of             aircraft
  Labor Rate        Flight Time         Covered Aircraft        Flight Hours
- --------------------------------------------------------------------------------
                                                       



















P.A. No. 2022

   70





Delta Air Lines, Inc.
Attachment B to
6-1162-RLL-2147  Page 2


The above labor rate excludes all fringe benefits, premium time allowances,
social charges, business taxes and the like.

DELTA AIR LINES, INC.


By                                            Date    
      ----------------------------                 --------------------------
Its                              
      ----------------------------
















P.A. No. 2022


   71



Delta Air Lines, Inc.
Attachment C to
6-1162-RLL-2147  Page 1




To:         DELTA AIR LINES, INC.

Subject:    Letter Agreement No. 6-1162-RLL-2147 to Purchase Agreement No. 2022
            Airframe Maintenance Cost Protection Program


Reported herein are certain data required under paragraph 4.2.1 of the
referenced Letter Agreement.

Reporting Period No. 
                     -------
Beginning date           ending date 
               ---------             ---------

Costs as reported by Customer /in foreign currency/:




               Actual            Direct            Direct         Subcontracted
         Maintenance Costs       Labor            Material        Maintenance
- --------------------------------------------------------------------------------
                                                         
Scheduled
Maintenance
- --------------------------------------------------------------------------------
Non-Scheduled
Maintenance
- --------------------------------------------------------------------------------
Repair &
Overhaul
- --------------------------------------------------------------------------------
Modifications


Customer's costs with adjusted Subcontracted Maintenance (per Attachment B of
the referenced Letter Agreement) in U.S. dollars.



          Actual            Direct     Direct     Subcontracted   Subcontracted
    Maintenance Costs       Labor     Material       Labor           Material
- --------------------------------------------------------------------------------
                                                      
Scheduled
Maintenance
- --------------------------------------------------------------------------------
Non-Scheduled 
Maintenance
- --------------------------------------------------------------------------------
Repair &
Overhaul
- --------------------------------------------------------------------------------
Modifications
- --------------------------------------------------------------------------------
Total

















P.A. No. 2022


   72



Delta Air Lines, Inc.
Attachment A to
6-1162-RLL-2147  Page 2


Actual Costs and Target Costs (per Attachment B of the referenced Letter
Agreement) /in U.S. dollars/.



                                  Reporting      Reporting       Reporting     Reporting       Reporting
                                   Period 1       Period 2        Period 3      Period 4        Period 5
- -----------------------------------------------------------------------------------------------------------
                                                                                
Year dollars
- -----------------------------------------------------------------------------------------------------------
Actual Labor
- -----------------------------------------------------------------------------------------------------------
Actual Material
- -----------------------------------------------------------------------------------------------------------
Actual Maintenance Cost
- -----------------------------------------------------------------------------------------------------------
Fleet Hours
- -----------------------------------------------------------------------------------------------------------
Cumulative Actual 
Maintenance Cost
- -----------------------------------------------------------------------------------------------------------
Number of Covered Aircraft
- -----------------------------------------------------------------------------------------------------------
Currency Exchange factor
- -----------------------------------------------------------------------------------------------------------
Per man-hour Labor Rate
- -----------------------------------------------------------------------------------------------------------
Material Inflation factor
- -----------------------------------------------------------------------------------------------------------
Average Flight Time
- -----------------------------------------------------------------------------------------------------------
Target Labor Cost
- -----------------------------------------------------------------------------------------------------------
Target Material Cost
- -----------------------------------------------------------------------------------------------------------
Target Maintenance Cost
- -----------------------------------------------------------------------------------------------------------
Cumulative Target 
Maintenance Cost


As of this Reporting Period, the Program is in compliance:

Yes    [ ]       No      [ ]


Very truly yours,

THE BOEING COMPANY



Reported by       
                  -------------------------
Its             
                  -------------------------
Date            
                  -------------------------












P.A. No. 2022
   73

[BOEING LETTERHEAD]

6-1162-RLL-2191


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320


Subject:          Multiple Aircraft Operating Weights

Reference:        Purchase Agreement No. 2022 (the Purchase Agreement) between
                  The Boeing Company (Boeing) and Delta Air Lines, Inc.
                  (Customer) relating to Model 737-632/-732/-832 aircraft (the
                  Aircraft)


This 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
AGTA and the Purchase Agreement.

In this Letter Agreement, the term "Aircraft" means all Model 737-632 or 737-732
or 737-832 aircraft purchased by Customer under the Purchase Agreement .



                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.



P.A. No. 2022
   74

Delta Air Lines, Inc.
6-1162-RLL-2191 Page 2





                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.










P.A. No. 2022
   75

Delta Air Lines, Inc.
6-1162-RLL-2191 Page 3



                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.



Very truly yours,

THE BOEING COMPANY


By  /s/ R. B. Woodard
   ---------------------------------------

Its             President
   ---------------------------------------


ACCEPTED AND AGREED TO:


Date:          October 21            , 1997
      -------------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
   ---------------------------------------

Its  President and Chief Executive Officer
   ---------------------------------------



P.A. No. 2022
   76
[BOEING LETTERHEAD]

6-1162-RLL-2233

Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320

Subject:          Aircraft Performance Guarantees

Reference:        Purchase Agreement No. 2022 (the Purchase Agreement) between
                  The Boeing Company (Boeing) and Delta Air Lines, Inc.
                  (Customer) relating to Model 737-632/-732/-832 aircraft (the
                  Aircraft)

This 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
AGTA and the Purchase Agreement.

Boeing agrees to provide Customer with the Performance Guarantees in Attachments
A, B and C to this Letter Agreement. These guarantees are exclusive and expire
upon Delivery of the Aircraft to Customer. Customer's remedies survive Delivery
of the Aircraft.


Very truly yours,

THE BOEING COMPANY


By   /s/ R. B. Woodard
   ---------------------------------------

Its                President
   ---------------------------------------


ACCEPTED AND AGREED TO:

Date:        October 21              , 1997
      -------------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
   ---------------------------------------

Its  President and Chief Executive Officer
   ---------------------------------------

Attachment



P.A. No. 2022
   77

Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 1



                      MODEL 737-632 PERFORMANCE GUARANTEES




                      SECTION           CONTENTS

                                             
                         1          *

                         2          *

                         3          *

                         4          *

                         5          *

                         6          *

                         7          *

                         8          *

                         9          *





                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.



B-B111-M97-0632C
   78

Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 2






                      
1                        *




2                        *
2.1                      *







2.2                      *






2.3                      *



                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.




B-B111-M97-0632C
   79


Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 3






                      

2.4                      *







2.5                      *









                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.






B-B111-M97-0632C
   80




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 4






                      

2.6                      *

2.6.1                    *








2.6.2                    *






2.6.3                    *







                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.





B-B111-M97-0632C
   81




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 5






                      

2.7                      *

2.7.1                    *






















                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.





B-B111-M97-0632C
   82


Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 6











                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.






B-B111-M97-0632C
   83

Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 7










                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.





B-B111-M97-0632C
   84

Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 8





               
  2.7.2           *This confidential information has been omitted and filed
                  separately with the Commission.








B-B111-M97-0632C
   85




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 9





               

  2.7.3           *This confidential information has been omitted and filed
                  separately with the Commission.







B-B111-M97-0632C
   86



Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 10





               

  2.7.4           *This confidential information has been omitted and filed
                  separately with the Commission.







B-B111-M97-0632C
   87




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 11





               

  2.7.5           *This confidential information has been omitted and filed
                  separately with the Commission.







B-B111-M97-0632C
   88



Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 12





               

  2.7.6           *This confidential information has been omitted and filed
                  separately with the Commission.

















  2.7.7           *This confidential information has been omitted and filed
                  separately with the Commission.





B-B111-M97-0632C
   89




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 13





               

  2.7.8           *This confidential information has been omitted and filed
                  separately with the Commission.






B-B111-M97-0632C
   90



Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 14





               

  2.7.9           *This confidential information has been omitted and filed
                  separately with the Commission.








B-B111-M97-0632C
   91



Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 15





               

3                        *






4                        *

4.1                      *





4.2                      *

4.2.1                    *







4.2.2                    *



                  *This confidential information has been omitted and filed
                  separately with the Commission.







B-B111-M97-0632C
   92



Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 16





               

  4.2.3           *This confidential information has been omitted and filed
                  separately with the Commission.







B-B111-M97-0632C
   93



Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 17





               

  4.3             *This confidential information has been omitted and filed
                  separately with the Commission.







B-B111-M97-0632C
   94



Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 18





               

  4.4             *This confidential information has been omitted and filed
                  separately with the Commission.

















  4.5             *This confidential information has been omitted and filed
                  separately with the Commission.








B-B111-M97-0632C
   95



Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 19





                      

5                        *







6                        *

6.1                      *










6.2                      *







                  *This confidential information has been omitted and filed
                  separately with the Commission.





B-B111-M97-0632C
   96




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 20





                      

7                        *

7.1                      *





7.2                      *






7.3                      *








7.4                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.




B-B111-M97-0632C
   97




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 21





                      

7.5                      *





7.6                      *






7.7                      *








7.8                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.





B-B111-M97-0632C
   98




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 22





                      

7.9                      *





7.10                     *








7.11                     *




                  *This confidential information has been omitted and filed
                  separately with the Commission.




B-B111-M97-0632C
   99




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 23





                      

7.12                     *







8                        *

8.1                      *



8.2                      *





8.3                      *




8.4                      *




8.5                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.





B-B111-M97-0632C
   100




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 24





                     

8.6                      *




8.7                      *





8.7.1                    *









8.7.2                    *




8.7.3                    *




8.7.4                    *



            *This confidential information has been omitted and filed
                         separately with the Commission.



B-B111-M97-0632C
   101




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 25





                      

8.7.5                    *







8.8                      *











8.9                      *





            *This confidential information has been omitted and filed
                         separately with the Commission.





B-B111-M97-0632C
   102




Attachment A to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B22 Engines
Page 26





                      

8.10                     *






8.11                     *





9                        *










            *This confidential information has been omitted and filed
                         separately with the Commission.





B-B111-M97-0632C
   103




Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 1







                      MODEL 737-632 PERFORMANCE GUARANTEES




                  SECTION           CONTENTS

                                          
                         1          *

                         2          *

                         3          *

                         4          *

                         5          *

                         6          *

                         7          *

                         8          *

                         9          *





                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.



B-B111-M97-0633C
   104


Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 2





                                             
1                        *




2                        *
2.1                      *







2.2                      *






2.3                      *



                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.








B-B111-M97-0633C
   105

Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 3





                                             
2.4                      *







2.5                      *









                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.






B-B111-M97-0633C
   106

Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 4





                                             


2.6                      *

2.6.1                    *








2.6.2                    *






2.6.3                    *





                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.





B-B111-M97-0633C
   107


Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 5





                                             

2.7                      *

2.7.1                    *






















                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.






B-B111-M97-0633C
   108


Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 6











                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.






B-B111-M97-0633C
   109

Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 7










                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.







B-B111-M97-0633C
   110

Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 8




                                          
  2.7.2           *This confidential information has been omitted and filed
                  separately with the Commission.















B-B111-M97-0633C
   111



Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 9




                                          

  2.7.3           *This confidential information has been omitted and filed
                  separately with the Commission.










B-B111-M97-0633C
   112



Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 10




                                          

  2.7.4           *This confidential information has been omitted and filed
                  separately with the Commission.








B-B111-M97-0633C
   113





Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 11




                                          
  2.7.5           *This confidential information has been omitted and filed
                  separately with the Commission.









B-B111-M97-0633C
   114



Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 12




                                          

  2.7.6           *This confidential information has been omitted and filed
                  separately with the Commission.
















  2.7.7           *This confidential information has been omitted and filed
                  separately with the Commission.








B-B111-M97-0633C
   115




Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 13




                                          

  2.7.8           *This confidential information has been omitted and filed
                  separately with the Commission.









B-B111-M97-0633C
   116



Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 14




                                          

  2.7.9           *This confidential information has been omitted and filed
                  separately with the Commission.








B-B111-M97-0633C
   117



Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 15




                                                 

3                        *






4                        *

4.1                      *





4.2                      *

4.2.1                    *







4.2.2                    *



                  *This confidential information has been omitted and filed
                  separately with the Commission.






B-B111-M97-0633C
   118



Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 16




                                          

  4.2.3           *This confidential information has been omitted and filed
                  separately with the Commission.










B-B111-M97-0633C
   119



Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 17




                                          

  4.3             *This confidential information has been omitted and filed
                  separately with the Commission.








B-B111-M97-0633C
   120



Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 18




                                          

  4.4             *This confidential information has been omitted and filed
                  separately with the Commission.

















  4.5             *This confidential information has been omitted and filed
                  separately with the Commission.








B-B111-M97-0633C
   121



Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 19




                                                 

5                        *







6                        *

6.1                      *










6.2                      *







                  *This confidential information has been omitted and filed
                  separately with the Commission.





B-B111-M97-0633C
   122




Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 20




                                                 

7                        *

7.1                      *





7.2                      *






7.3                      *








7.4                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.






B-B111-M97-0633C
   123




Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 21




                                                 

7.5                      *





7.6                      *






7.7                      *








7.8                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.






B-B111-M97-0633C
   124




Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 22




                                                 

7.9                      *





7.10                     *








7.11                     *




                  *This confidential information has been omitted and filed
                  separately with the Commission.





B-B111-M97-0633C
   125




Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 23




                                                 

7.12                     *







8                        *

8.1                      *



8.2                      *





8.3                      *




8.4                      *




8.5                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.





B-B111-M97-0633C
   126





Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 24




                                                 
8.6                      *




8.7                      *





8.7.1                    *









8.7.2                    *




8.7.3                    *




8.7.4                    *



            *This confidential information has been omitted and filed
                         separately with the Commission.






B-B111-M97-0633C
   127




Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 25




                                                 

8.7.5                    *







8.8                      *











8.9                      *





            *This confidential information has been omitted and filed
                         separately with the Commission.





B-B111-M97-0633C
   128




Attachment B to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B24 Engines
Page 26




                                                 

8.10                     *






8.11                     *





9                        *










            *This confidential information has been omitted and filed
                         separately with the Commission.








B-B111-M97-0633C
   129

Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 1






                      MODEL 737-832 PERFORMANCE GUARANTEES




                  SECTION           CONTENTS

                                          
                         1          *

                         2          *

                         3          *

                         4          *

                         5          *

                         6          *

                         7          *

                         8          *

                         9          *




                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.




B-B111-M97-0634D
   130

Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 2







                                             
1                        *




2                        *
2.1                      *







2.2                      *






2.3                      *



                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.





B-B111-M97-0634D
   131




Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 3







                                             

2.4                      *







2.5                      *









                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.






B-B111-M97-0634D
   132



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 4







                                             

2.6                      *

2.6.1                    *








2.6.2                    *






2.6.3                    *







                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.







B-B111-M97-0634D
   133




Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 5







                                             

2.7                      *

2.7.1                    *






















                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.






B-B111-M97-0634D
   134


Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 6














                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.






B-B111-M97-0634D
   135



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 7








                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.






B-B111-M97-0634D
   136

Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 8




                           
  2.7.2           *This confidential information has been omitted and filed
                  separately with the Commission.







B-B111-M97-0634D
   137



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 9




                           

  2.7.3           *This confidential information has been omitted and filed
                  separately with the Commission.










B-B111-M97-0634D
   138



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 10




                           

  2.7.4           *This confidential information has been omitted and filed
                  separately with the Commission.










B-B111-M97-0634D
   139




Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 11




                           

  2.7.5           *This confidential information has been omitted and filed
                  separately with the Commission.










B-B111-M97-0634D
   140



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 12




                           

  2.7.6           *This confidential information has been omitted and filed
                  separately with the Commission.
















B-B111-M97-0634D
   141





Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 13




                           

  2.7.7           *This confidential information has been omitted and filed
                  separately with the Commission.












B-B111-M97-0634D
   142




Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 14




                           

  2.7.8           *This confidential information has been omitted and filed
                  separately with the Commission.












B-B111-M97-0634D
   143




Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 15




                           
  2.7.9           *


















  2.7.10          *


                  *This confidential information has been omitted and filed
                  separately with the Commission.







B-B111-M97-0634D
   144




Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 16




                           

  2.7.11          *This confidential information has been omitted and filed
                  separately with the Commission.










B-B111-M97-0634D
   145




Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 17




                           

  2.7.12          *This confidential information has been omitted and filed
                  separately with the Commission.










B-B111-M97-0634D
   146



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 18




                                  

3                        *






4                        *

4.1                      *





4.2                      *

4.2.1                    *







4.2.2                    *



                  *This confidential information has been omitted and filed
                  separately with the Commission.





B-B111-M97-0634D
   147


Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 19




                           


  4.2.3           *This confidential information has been omitted and filed
                  separately with the Commission.









B-B111-M97-0634D
   148



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 20




                           

  4.3             *This confidential information has been omitted and filed
                  separately with the Commission.








B-B111-M97-0634D
   149


Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 21




                           


  4.4             *This confidential information has been omitted and filed
                  separately with the Commission.

















  4.5             *This confidential information has been omitted and filed
                  separately with the Commission.






B-B111-M97-0634D
   150


Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 22




                                  


5                        *







6                        *

6.1                      *










6.2                      *







                  *This confidential information has been omitted and filed
                  separately with the Commission.






B-B111-M97-0634D
   151


Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 23




                                  



7                        *

7.1                      *





7.2                      *






7.3                      *








7.4                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.






B-B111-M97-0634D
   152



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 24




                                  


7.5                      *





7.6                      *






7.7                      *








7.8                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.





B-B111-M97-0634D
   153



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 25




                                  


7.9                      *





7.10                     *








7.11                     *




                  *This confidential information has been omitted and filed
                  separately with the Commission.






B-B111-M97-0634D
   154


Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 26




                                  



7.12                     *







8                        *

8.1                      *



8.2                      *





8.3                      *




8.4                      *




8.5                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.





B-B111-M97-0634D
   155



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 27




                                  


8.6                      *




8.7                      *





8.7.1                    *









8.7.2                    *




8.7.3                    *




8.7.4                    *



            *This confidential information has been omitted and filed
                         separately with the Commission.





B-B111-M97-0634D
   156



Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 28




                                  


8.7.5                    *







8.8                      *











8.9                      *





            *This confidential information has been omitted and filed
                         separately with the Commission.






B-B111-M97-0634D
   157




Attachment C to Letter Agreement
No. 6-1162-RLL-2233
CFM56-7B26 Engines
Page 29




                                  

8.10                     *






8.11                     *





9                        *










                  *This confidential information has been omitted and filed
                         separately with the Commission.







B-B111-M97-0634D
   158
[BOEING LETTERHEAD]

6-1162-RLL-2240

Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320

Subject:     *This confidential information has been omitted and filed
             separately with the Commission.

Reference:   Purchase Agreement No. 2022 (the Purchase Agreement) between The
             Boeing Company (Boeing) and Delta Air Lines, Inc. (Customer)
             relating to Model 737-632/-732/-832 aircraft (the Aircraft)


This Letter Agreement amends and supplements the Purchase Agreement. All terms
used but not defined in this Letter Agreement have the same meaning as in AGTA
and the Purchase Agreement.

                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.


Very truly yours,

THE BOEING COMPANY


By  /s/ R. B. Woodard
    -------------------------------------------------

Its                      President
    -------------------------------------------------

ACCEPTED AND AGREED TO:

Date:          October 21            , 1997
     --------------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. .Mullin
    -------------------------------------------------

Its  President and Chief Executive Officer
    -------------------------------------------------
Attachment


   159








                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.




*






















   160




                                TABLE OF CONTENTS



                                                                                       Page
                                                                                      Number
                                                                                      ------
                                                                                

Article 1.                                           *                                  1-1
Article 2.                                           *                                  2-1
Article 3.                                           *                                  3-1
Article 4.                                           *                                  4-1
Article 5.                                           *                                  5-1
Article 6.                                           *                                  6-1
Article 7.                                           *                                  7-1
Article 8.                                           *                                  8-1
Article 9.                                           *                                  9-1
Article 10.                                          *                                  10-1
Article 11.                                          *                                  11-1
Article 12.                                          *                                  12-1
Article 13.                                          *                                  13-1
Article 14.                                          *                                  14-1
Article 15.                                          *                                  16-1


Article A                                            *                                  A-1
Article B                                            *                                  B-1
Article C                                            *                                  C-1
Article D                                            *                                  D-1



                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.











                                       (i)





*

   161




                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.


































                                      (ii)


*

   162








Article 1. *This confidential information has been omitted and filed separately
with the Commission.







































                                       1-1



*

   163








Article 2. *This confidential information has been omitted and filed separately
with the Commission.







































                                       2-1


*

   164









Article 3. *This confidential information has been omitted and filed separately
with the Commission.





































                                       3-1


*

   165








Article 4. *This confidential information has been omitted and filed separately
with the Commission.







































                                       4-1


*

   166








Article 5. *This confidential information has been omitted and filed separately
with the Commission.







































                                       5-1


*

   167










*This confidential information has been omitted and filed separately with the
Commission.





































                                       5-2


*

   168










*This confidential information has been omitted and filed separately with the
Commission.





































                                       5-3


*

   169










*This confidential information has been omitted and filed separately with the
Commission.





































                                       5-4


*

   170






Article 6. *This confidential information has been omitted and filed separately
with the Commission.







































                                       6-1



*

   171






Article 7. *This confidential information has been omitted and filed separately
with the Commission.







































                                       7-1

*

   172






*This confidential information has been omitted and filed separately with the
Commission.







































                                       7-2

*

   173







Article 8. *This confidential information has been omitted and filed separately
with the Commission.







































                                       8-1

*

   174






Article 9. *This confidential information has been omitted and filed separately
with the Commission.







































                                       9-1

*

   175






Article 10. *This confidential information has been omitted and filed separately
with the Commission.







































                                      10-1

*

   176






Article 11. *This confidential information has been omitted and filed separately
with the Commission.







































                                      11-1

*

   177






Article 12. *This confidential information has been omitted and filed separately
with the Commission.







































                                      12-1

*

   178






Article 13. *This confidential information has been omitted and filed separately
with the Commission.







































                                      13-1

*

   179






Article 14. *This confidential information has been omitted and filed separately
with the Commission.







































                                      14-1

*

   180






Article 15. *This confidential information has been omitted and filed separately
with the Commission.







































                                      15-1

*

   181






Exhibit A to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.

































                                       A-1

*

   182




Exhibit A to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.


































                                       A-2

*

   183




Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.


































                                       B-1

*

   184




Attachment 1 to
Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.

































                                      B-1-1

*

   185




Attachment 2 to
Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.

































                                      B-2-1

*

   186




Attachment 2 to
Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.

































                                      B-2-2

*

   187




Exhibit C to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.


































                                       C-1

*

   188




Exhibit D to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.


































                                       D-1

*

   189




Exhibit D to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.


































                                       D-2

*

   190




Exhibit D to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.


































                                       D-3

*

   191
 






[BOEING LETTERHEAD]

6-1162-RLL-2400

Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia  30320


               
Subject:          Open Configuration Matters for the 737-632 and 737-732 Aircraft

Reference:        Purchase Agreement No. 2022 (the Purchase Agreement) between The Boeing
                  Company (Boeing) and Delta Air Lines, Inc. relating to Model 737-632/-732
                  aircraft (the Aircraft)



This Letter Agreement amends the Purchase Agreement. All terms used but not
defined in this Letter Agreement have the same meaning as in the AGTA and the
Purchase Agreement.

1.           Configuration Discussions

             1.1 Configuration Schedule. In accordance with Article 4.2.2 of the
AGTA Customer will advise Boeing 15 months prior to delivery of the first
undefined, uncertified 737-632/-732 Aircraft. Following the 15 month
notification by Customer, Boeing and Customer agree to establish a mutually
agreeable schedule that will result in the completion of the final configuration
of either a 737-632 or 737-732 on the fifteenth Business Day of the twelfth
month prior to delivery of either a 737-632 or 737-732. In the discussions to
establish the schedule, Customer and Boeing will develop a plan for
identification, definition and selection by Customer of the Optional Features to
be incorporated in Customer's Aircraft.

             1.2 Customer's Detail Specification.

The 737-632 and 737-732 Aircraft descriptions are as follows:

737-632 - Basic MTOW and thrust - Boeing 737-632 Configuration Specification
D6-38808 revision F dated March 8, 1996, plus installation of CFM56-7B* engines
with a MTOW of * pounds and thrust of * pounds.

737-632 - Maximum MTOW and thrust - Boeing 737-632 Configuration Specification
D6-38808 revision F dated March 8, 1996, plus installation of CFM56-7B* engines
with a MTOW of * pounds and thrust of * pounds.

737-732 - Basic MTOW and thrust - Boeing 737-732 Configuration Specification
D6-38808 revision F dated March 8, 1996, plus installation of CFM56-7B* engines
with a MTOW of * pounds and thrust of * pounds.

*This confidential information has been omitted and filed separately with the
Commission.


P.A. No. 2022

   192



Delta Air Lines, Inc.
6-1162-RLL-2400 Page 2



737-732 - Maximum MTOW and thrust - Boeing 737-732 Configuration Specification
D6-38808 revision F dated March 8, 1996, plus installation of CFM56-7B* engines
with a MTOW of * pounds and thrust of * pounds.

After Customer's selection of the Optional Features, Boeing will provide to
Customer a Customer-unique configuration specification (Detail Specification).
The Detail Specification will be comprised of the most recent version of the
737-600/-700 Configuration Specification developed by Boeing and the Optional
Features agreed to be incorporated in the Aircraft by Boeing and Customer.

2.           Price

The Aircraft Basic Price for the 737-632 and 737-732 with the basic MTOW and
thrust is:


                                                                       
Model                                             737-632                    737-732

Airframe Price                                       *                          *

Estimated Optional Features Price                    *                          *

Aircraft Basic Price                                 *                          *

BFE Estimate                                         *                          *



The Aircraft Basic Price for the 737-632 and 737-732 with the maximum MTOW and
thrust is:


                                                                       
Model                                             737-632                    737-732

Airframe Price                                       *                          *

Estimated Optional Features                          *                          *
Price

MTOW Portion of                                      *                          *
Optional Features Price

Thrust Portion of                                    *                          *
Optional Features Price

Aircraft Basic Price                                 *                          *

BFE Estimate                                         *                          *




*This confidential information has been omitted and filed separately with the
Commission.

P.A. No. 2022


   193



Delta Air Lines, Inc.
6-1162-RLL-2400 Page 3



3.           Effect on Purchase Agreement.

             3.1 Exhibit A. Upon completion of the configuration discussions
referred to in Article 1.1 above, Boeing will provide to Customer an Exhibit A-1
for the 737-632 and an Exhibit A-2 for the 737-732 defining the configuration of
the 737-632 and 737-732 Aircraft.

             3.2 Tables . Tables 1, 2 and 3 to the Purchase Agreement will be
provided to Customer reflecting acceptance of the Change Requests for the
737-632 and 737-732 Aircraft. Specifically, the Aircraft Basic Price and the
Advance Payment Base Price of the Aircraft and the component parts of the
Aircraft Basic Price and the Advance Payment Base Price will be included in such
new Tables.

             3.3 Performance Guarantees.  The aircraft performance guarantees
in Letter Agreement No. 6-1162-RLL-2233 are based on an estimate of the effect
of Optional Features. Customer acknowledges that such performance guarantees
will be revised by Boeing to incorporate the effect of Customer's final
selection of Optional Features.

4.           Purchase Agreement Amendment.

             Within 30 days after reaching agreement as to the final Aircraft
Configuration, Boeing will provide Customer an amendment to the Purchase
Agreement reflecting the effects of the configuration changes agreed to by the
parties.


Very truly yours,

THE BOEING COMPANY


By /s/ R. B. Woodard
  -----------------------------------------

Its              President
   ----------------------------------------


ACCEPTED AND AGREED TO:

Date:          October 21            , 1997
      -------------------------------

DELTA AIR LINES, INC.


By /s/ Leo F. Mullin
  -----------------------------------------
Its President and Chief Executive Officer
   ----------------------------------------


P.A. No. 2022

   194





[BOEING LETTERHEAD]

6-1162-RLL-2289


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320


               
Subject:          *This confidential information has been omitted and filed separately with the
Commission.

Reference:        Purchase Agreement Nos. 2024 and 2025 (the Purchase Agreement) between The
                  Boeing Company (Boeing) and Delta Air Lines, Inc. (Customer) relating to
                  Model 767-332ER/-332 and 767-432ER aircraft (the Aircraft).



This Letter Agreement amends and supplements the Purchase Agreements. All terms
used but not defined in this Letter Agreement have the same meaning as in the
AGTA and the Purchase Agreements.



                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.


Very truly yours,

THE BOEING COMPANY


By /s/ R. B. Woodard
  --------------------------------------------

Its             President
   -------------------------------------------


ACCEPTED AND AGREED TO:

Date:        October 21                 , 1997
      ----------------------------------

DELTA AIR LINES, INC.


By /s/ Leo F. Mullin
  --------------------------------------------
Its President and Chief Executive Officer
   -------------------------------------------

Attachment


P.A. Nos. 2024 and 2025

   195









                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.





*




   196




                               TABLE OF CONTENTS



                                                                                         Page
                                                                                        Number
                                                                                        ------
                                                                                  
Article 1.                                           *                                  1-1
Article 2.                                           *                                  2-1
Article 3.                                           *                                  3-1
Article 4.                                           *                                  4-1
Article 5.                                           *                                  5-1
Article 6.                                           *                                  6-1
Article 7.                                           *                                  7-1
Article 8.                                           *                                  8-1
Article 9.                                           *                                  9-1
Article 10.                                          *                                  10-1
Article 11.                                          *                                  11-1
Article 12.                                          *                                  12-1
Article 13.                                          *                                  13-1
Article 14.                                          *                                  14-1
Article 15.                                          *                                  16-1


Article A                                            *                                  A-1
Article B                                            *                                  B-1
Article C                                            *                                  C-1
Article D                                            *                                  D-1




                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.











                                      (i)





*

   197








                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.


































                                      (ii)





*


   198








Article 1. *This confidential information has been omitted and filed separately
with the Commission.







































                                      1-1





*


   199








Article 2. *This confidential information has been omitted and filed separately
with the Commission.







































                                      2-1





*


   200









Article 3. *This confidential information has been omitted and filed separately
with the Commission.





































                                      3-1





*


   201








Article 4. *This confidential information has been omitted and filed separately
with the Commission.







































                                      4-1





*


   202








Article 5. *This confidential information has been omitted and filed separately
with the Commission.







































                                      5-1





*



   203










*This confidential information has been omitted and filed separately with the
Commission.





































                                      5-2





*



   204










*This confidential information has been omitted and filed separately with the
Commission.





































                                      5-3





*



   205










*This confidential information has been omitted and filed separately with the
Commission.





































                                      5-4





*



   206






Article 6. *This confidential information has been omitted and filed separately
with the Commission.







































                                      6-1





*


   207






Article 7. *This confidential information has been omitted and filed separately
with the Commission.







































                                      7-1





*


   208






*This confidential information has been omitted and filed separately with the
Commission.







































                                      7-2





*


   209







Article 8. *This confidential information has been omitted and filed separately
with the Commission.







































                                      8-1





*


   210






Article 9. *This confidential information has been omitted and filed separately
with the Commission.







































                                      9-1





*


   211






Article 10. *This confidential information has been omitted and filed separately
with the Commission.







































                                      10-1





*


   212






Article 11. *This confidential information has been omitted and filed separately
with the Commission.







































                                      11-1





*


   213






Article 12. *This confidential information has been omitted and filed separately
with the Commission.







































                                      12-1





*


   214






Article 13. *This confidential information has been omitted and filed separately
with the Commission.







































                                      13-1





*


   215






Article 14. *This confidential information has been omitted and filed separately
with the Commission.







































                                      14-1





*


   216






Article 15. *This confidential information has been omitted and filed separately
with the Commission.







































                                      15-1





*


   217






Exhibit A to
*





                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.

































                                      A-1





*

   218




Exhibit A to
*





                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.


































                                      A-2





*

   219




Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.


































                                      B-1





*

   220




Attachment 1 to
Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.

































                                     B-1-1





*

   221




Attachment 2 to
Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.

































                                     B-2-1





*

   222




Attachment 2 to
Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.

































                                     B-2-2





*

   223




Exhibit C to
*





                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.


































                                      C-1





*

   224




Exhibit D to
*





                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.


































                                      D-1





*


   225




Exhibit D to
*





                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.


































                                      D-2





*


   226




Exhibit D to
*





                         *This confidential information
                           has been omitted and filed
                        separately with the Commission.


































                                      D-3





*


   227



[BOEING LETTERHEAD]

6-1162-RLL-2292


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320

Subject:          *This confidential information has been omitted and filed
separately with the Commission.

Reference:        Purchase Agreement No. 2025 (the Purchase Agreement) between
                  The Boeing Company (Boeing) and Delta Air Lines, Inc.
                  (Customer) relating to Model 767-432 aircraft (the Aircraft)


This 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
AGTA and the Purchase Agreement.


1.       *This confidential information has been omitted and filed separately
with the Commission.


P.A. No. 2025

   228



Delta Air Lines, Inc.
6-1162-RLL-2292  Page 2




*This confidential information has been omitted and filed separately with the
Commission.



Very truly yours,

THE BOEING COMPANY


By   /s/ R. B. Woodard
  --------------------------------------------

Its                President
   -----------------------------------------


ACCEPTED AND AGREED TO:

Date:     October 21    , 1997
      ------------------

DELTA AIR LINES, INC.


By  /s/ Leo F. Mullin
  --------------------------------------------

Its  President and Chief Executive Officer
    ---------------------------------------

Attachment


P.A. No. 2025

   229









                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.








*

   230



                                TABLE OF CONTENTS



                                                                     Page
                                                                    Number
                                                                    ------
                                                              
Article 1.                         *                                  1-1
Article 2.                         *                                  2-1
Article 3.                         *                                  3-1
Article 4.                         *                                  4-1
Article 5.                         *                                  5-1
Article 6.                         *                                  6-1
Article 7.                         *                                  7-1
Article 8.                         *                                  8-1
Article 9.                         *                                  9-1
Article 10.                        *                                  10-1
Article 11.                        *                                  11-1
Article 12.                        *                                  12-1
Article 13.                        *                                  13-1
Article 14.                        *                                  14-1
Article 15.                        *                                  16-1


Article A                          *                                  A-1
Article B                          *                                  B-1
Article C                          *                                  C-1
Article D                          *                                  D-1



                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.






                                       (i)


*

   231









                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.








                                      (ii)


*

   232









Article 1. *This confidential information has been omitted and filed separately
with the Commission.










                                       1-1


*

   233









Article 2. *This confidential information has been omitted and filed separately
with the Commission.















                                       2-1


*

   234










Article 3. *This confidential information has been omitted and filed separately
with the Commission.



















                                       3-1


*

   235









Article 4. *This confidential information has been omitted and filed separately
with the Commission.















                                       4-1


*

   236









Article 5. *This confidential information has been omitted and filed separately
with the Commission.






















                                       5-1


*

   237







Article 6. *This confidential information has been omitted and filed separately
with the Commission.
























                                       6-1


*

   238







Article 7. *This confidential information has been omitted and filed separately
with the Commission.
























                                       7-1


*

   239









Article 8. *This confidential information has been omitted and filed separately
with the Commission.





















                                       8-1


*

   240







Article 9. *This confidential information has been omitted and filed separately
with the Commission.



















                                       9-1


*

   241








Article 10. *This confidential information has been omitted and filed separately
with the Commission.























                                      10-1




*

   242







Article 11. *This confidential information has been omitted and filed separately
with the Commission.



















                                      11-1




*

   243







Article 12. *This confidential information has been omitted and filed separately
with the Commission.























                                      12-1




*

   244







Article 13. *This confidential information has been omitted and filed separately
with the Commission.

























                                      13-1




*

   245







Article 14. *This confidential information has been omitted and filed separately
with the Commission.





















                                      14-1




*

   246







Article 15. *This confidential information has been omitted and filed separately
with the Commission.






















                                      15-1




*

   247







Exhibit A to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.
























                                       A-1


*

   248



Exhibit A to
*



                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.
























                                       A-2



*

   249



Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.




















                                       B-1



*

   250




Attachment 1 to
Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.



















                                      B-1-1



*

   251



Attachment 2 to
Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.



















                                      B-2-1



*

   252



Attachment 2 to
Exhibit B to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.























                                      B-2-2



*

   253



Exhibit C to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.

















                                       C-1



*

   254



Exhibit D to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.























                                       D-1



*

   255



Exhibit D to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.























                                       D-2



*

   256



Exhibit D to
*





                         *This confidential information
                           has been omitted and filed
                         separately with the Commission.




















                                       D-3



*

   257




[BOEING LETTERHEAD]

6-1162-RLL-2275


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320


Subject:          Multiple Aircraft Operating Weights

Reference:        Purchase Agreement No. 2025 (the Purchase Agreement) between
                  The Boeing Company (Boeing) and Delta Air Lines, Inc.
                  (Customer) relating to Model 767-432ER aircraft (the Aircraft)


This 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
AGTA and the Purchase Agreement.

In this Letter Agreement, the term "Aircraft" means the Model 767-432ER aircraft
purchased by Customer under the Purchase Agreement.





                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.


P.A. No. 2025

   258






Delta Air Lines, Inc.
6-1162-RLL-2275  Page 2




                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.


P.A. No. 2025


   259




Delta Air Lines, Inc.
6-1162-RLL-2275  Page 3



                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.


It is understood that a minimum of 60 days will be required for Boeing to make
the change to the FAA approved Airplane Flight Manual elected by Customer. If
the Customer requires the Airplane Flight Manual to be prepared in a different
format required by the cognizant aviation authority of the proposed third party
purchaser or lessee, prior coordination with Boeing will be required to
determine price and offerability.


Very truly yours,

THE BOEING COMPANY


By  /s/ R. B. Woodard
  ----------------------------------------

Its                President
    --------------------------------------


ACCEPTED AND AGREED TO:

Date:           October 21           , 1997
      -------------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
  ----------------------------------------

Its  President and Chief Executive Officer
    --------------------------------------


Attachment


P.A. No. 2025


   260







Attachment to
Delta Air Lines, Inc.
6-1162-RLL-2275 Page 1




                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.



P.A. No. 2025

   261




Attachment to
Delta Air Lines, Inc.
6-1162-RLL-2275 Page 2



                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.



P.A. No. 2025

   262




Attachment to
Delta Air Lines, Inc.
6-1162-RLL-2275 Page 3



                           *This confidential information
                           has been omitted and filed
                           separately with the Commission.




P.A. No. 2025

   263






[BOEING LETTERHEAD]

6-1162-RLL-2281

Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia  30320

Subject:      Aircraft Performance Guarantees

Reference:    Purchase Agreement No. 2025 (the Purchase Agreement) between
              The Boeing Company (Boeing) and Delta Air Lines, Inc.
              (Customer) relating to Model 767-432ER aircraft (the Aircraft)

This 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
AGTA and the Purchase Agreement.

Boeing agrees to provide Customer with the Performance Guarantees in the
Attachment to this Letter Agreement. These guarantees are exclusive and expire
upon Delivery of the Aircraft to Customer. Customer's remedies survive delivery
of the Aircraft.

The Performance Guarantees in the Purchase Agreement do not include any effect
of the boltless turbine.


Very truly yours,

THE BOEING COMPANY


By   /s/ R. B. Woodard
   ------------------------------------------

Its           President
   ------------------------------------------


ACCEPTED AND AGREED TO:

Date:       October 21               , 1997
      -------------------------------

DELTA AIR LINES, INC.


By   /s/ Leo. F. Mullin
   ------------------------------------------

Its  President and Chief Executive Officer
   ------------------------------------------

Attachment


P.A. No. 2025

   264




Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 1





                     MODEL 767-432ER PERFORMANCE GUARANTEES




                      SECTION           CONTENTS

                                     
                         1                  *

                         2                  *

                         3                  *

                         4                  *

                         5                  *

                         6                  *

                         7                  *

                         8                  *

                         9                  *





                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.



B-B111-M97-0637C

   265




Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 2






                      
1                        *




2                        *
2.1                      *







2.2                      *






2.3                      *

2.3.1                    *





                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.



B-B111-M97-0637C

   266





Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 3






          



2.3.2        *This confidential information has been omitted and filed
             separately with the Commission.




B-B111-M97-0637C

   267







Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 4






          

2.3.3        *This confidential information has been omitted and filed
             separately with the Commission.




B-B111-M97-0637C

   268





Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 5






                      


2.4                      *







2.5                      *









                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.



B-B111-M97-0637C

   269





Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 6






                      



2.6                      *

2.6.1                    *








2.6.2                    *






2.6.3                    *







                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.



B-B111-M97-0637C

   270






Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 7






                      



2.7                      *

2.7.1                    *






















                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.



B-B111-M97-0637C

   271





Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 8













                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.



B-B111-M97-0637C

   272








Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 9






                                    *This confidential information has been
                                    omitted and filed separately with the
                                    Commission.



B-B111-M97-0637C

   273





Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 10





               
  2.7.2           *This confidential information has been omitted and filed
                  separately with the Commission.




B-B111-M97-0637C

   274




Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 11





               

  2.7.3           *This confidential information has been omitted and filed
                  separately with the Commission.




B-B111-M97-0637C

   275






Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 12





               

  2.7.4           *This confidential information has been omitted and filed
                  separately with the Commission.



B-B111-M97-0637C

   276







Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 13





               


  2.7.5           *This confidential information has been omitted and filed
                  separately with the Commission.




B-B111-M97-0637C

   277







Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 14





               


  2.7.6           *This confidential information has been omitted and filed
                  separately with the Commission.















B-B111-M97-0637C




   278







Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 15





               


  2.7.7           *This confidential information has been omitted and filed
                  separately with the Commission.




B-B111-M97-0637C


   279







Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 16





               


  2.7.8           *This confidential information has been omitted and filed
                  separately with the Commission.























  2.7.9           *This confidential information has been omitted and filed
                  separately with the Commission.




B-B111-M97-0637C

   280







Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 17





               


  2.7.10          *This confidential information has been omitted and filed
                  separately with the Commission.




B-B111-M97-0637C

   281







Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 18





               


  2.7.11          *This confidential information has been omitted and filed
                  separately with the Commission.




B-B111-M97-0637C

   282







Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 19





                      


3                        *






4                        *

4.1                      *





4.2                      *













                  *This confidential information has been omitted and filed
                  separately with the Commission.



B-B111-M97-0637C

   283







Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 20





               


  4.3             *This confidential information has been omitted and filed
                  separately with the Commission.











  4.4             *This confidential information has been omitted and filed
                  separately with the Commission.




















B-B111-M97-0637C


   284





Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 21




  5      *This confidential information has been omitted and filed
             separately with the Commission.





B-B111-M97-0637C


   285






Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 22




                      


6                        *

6.1                      *








6.2                      *







7                        *

7.1                      *





7.2                      *


                  *This confidential information has been omitted and filed
                  separately with the Commission.


B-B111-M97-0637C


   286





Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 23




                      

7.3                      *








7.4                      *





7.5                      *




7.6                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.


B-B111-M97-0637C


   287








Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 24




                      


7.7                      *






7.8                      *




7.9                      *






7.10                     *





7.11                     *




                  *This confidential information has been omitted and filed
                  separately with the Commission.



B-B111-M97-0637C

   288





Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 25




                      


7.12                     *







8                        *

8.1                      *



8.2                      *








                  *This confidential information has been omitted and filed
                  separately with the Commission.


B-B111-M97-0637C

   289





Attachment to Letter Agreement
No. 6-1162-RLL-2281
CF6-80C2B7F Engines
Page 26




                      


8.3                      *



8.4                      *




8.5                      *




8.6                      *




8.7                      *










8.8                      *




                  *This confidential information has been omitted and filed
                  separately with the Commission.

B-B111-M97-0637C


   290



[BOEING LETTERHEAD]

6-1162-RLL-2284


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta,  Georgia 30320


Subject:     Open Configuration Matters

Reference:   Purchase Agreement No. 2025 (the Purchase Agreement) between The
             Boeing Company (Boeing) and Delta Air Lines, Inc. (Customer)
             relating to Model 767-432ER aircraft (the Aircraft)


This Letter Agreement amends the Purchase Agreement. All terms used but not
defined in this Letter Agreement have the same meaning as in the AGTA and the
Purchase Agreement.

1.           Final Configuration Discussions.

             1.1 Final Configuration Schedule. Boeing and Customer agree to
establish a schedule that will result in the completion of configuration of the
Aircraft by May 1, 1998. In the discussions to establish the schedule, Customer
and Boeing will identify and define the Optional Features to be incorporated
into Customer's Aircraft.

             1.2 Customer's Detail Specification. After Customer's selection of
the Optional Features and engine model, Boeing will provide to Customer a
Customer-unique configuration specification (Detail Specification). The Detail
Specification will be comprised of the most recent version of the Configuration
Specification developed by Boeing for a Model 767 Aircraft and the Appendix to
that Configuration Specification which further defines the -400 model 767, and
the Optional Features agreed to be incorporated in the Aircraft by Boeing and
Customer. A reconciliation will be provided to Customer that identifies any
differences between the Configuration Specification referenced in Exhibit A of
the Purchase Agreement and the Configuration Specification initially used to
develop the Detail Specification.

2.           Price.



*This confidential information has been omitted and filed separately with the
Commission.


P.A. No. 2025

   291



Delta Air Lines, Inc.
6-1162-RLL-2284 Page 2







                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.


P.A. No. 2025

   292



Delta Air Lines, Inc.
6-1162-RLL-2284 Page 3




                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.






3.           Effect on Purchase Agreement.

             3.1 Exhibit A. Revisions to the 767-400 Configuration Specification
developed by Boeing for a Model 767 Aircraft and the Appendix to that
Configuration Specification (Revision A, dated June 6, 1997) which further
defines the -400 model 767 developed by Boeing subsequent to the Execution Date
will be provided to Customer in the form of an updated Configuration
Specification and Appendix. The effects of all Optional Features which are
mutually agreed upon between Boeing and Customer for incorporation into the
Detail Specification for the Aircraft will be incorporated into Exhibit A of the
Purchase Agreement by written amendment.

             3.2 Tables. Tables 1, 2 and 3 to the Purchase Agreement will be
revised to reflect revisions made to Exhibit A to the Purchase Agreement .
Specifically, the Aircraft Basic Price and the Advance Payment Base Price of the
Aircraft and the component parts of the Aircraft Basic Price and the Advance
Payment Base Price will be included in such new Tables 1, 2 and 3.

             3.3 Performance Guarantees. The aircraft performance guarantees in
Letter Agreement No. 6-1162-RLL-2281 are based on an estimate of the effect of
optional features. Customer acknowledges that such performance guarantees will
be revised by Boeing to incorporate the effect of Customer's final selection of
optional features.

4.           Purchase Agreement Amendment.

             Within 30 days after reaching agreement as to the final Aircraft
Configuration, Boeing and Customer will amend the Purchase Agreement to reflect
the effects of the configuration changes agreed to by the parties.


P.A. No. 2025

   293



Delta Air Lines, Inc.
6-1162-RLL-2284 Page 4




Very truly yours,

THE BOEING COMPANY


By  /s/ R. B. Woodard
    --------------------------------------------------
Its                      President
    --------------------------------------------------

ACCEPTED AND AGREED TO:

Date:         October 21             , 1997
      -------------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
    --------------------------------------------------
Its  President and Chief Executive Officer
    --------------------------------------------------

P.A. No. 2025

   294



[BOEING LETTERHEAD]

6-1162-RLL-2290


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320


Subject:     *This confidential information has been omitted and filed
             separately with the Commission.

Reference:   Purchase Agreement No. 2025 (the Purchase Agreement) between The
             Boeing Company (Boeing) and Delta Air Lines, Inc. (Customer)
             relating to Model 767-432ER aircraft (the Aircraft)


This 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
AGTA and the Purchase Agreement.




                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.



P.A. No. 2025

   295



Delta Air Lines, Inc.
6-1162-RLL-2290 Page 2







                         *This confidential information
                         has been omitted and filed
                         separately with the Commission.




P.A. No. 2025

   296



Delta Air Lines, Inc.
6-1162-RLL-2290 Page 3



Very truly yours,

THE BOEING COMPANY


By   /s/ R. B. Woodard
     ------------------------------------------------
Its                      President
     ------------------------------------------------

ACCEPTED AND AGREED TO:

Date:        October 21                 , 1997
     -----------------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
     ------------------------------------------------

Its  President and Chief Executive Officer
     ------------------------------------------------



Attachment


P.A. No. 2025


   297



[BOEING LETTERHEAD]

September 15, 1997


VIA FAX:          (404) 715-5494


Captain H.G. Alger
Executive Vice President Operations
Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia  30320

Dear Harry:


                               *This confidential
                               information has been
                               omitted and filed
                               separately with the
                               Commission.



   298









                               *This confidential
                               information has been
                               omitted and filed
                               separately with the
                               Commission.


Sincerely,


/s/ John B. Hayhurst


   299





Attachment A







                               *This confidential
                               information has been
                               omitted and filed
                               separately with the
                               Commission.





Rev-C                                                                         1

   300




Attachment A





                               *This confidential
                               information has been
                               omitted and filed
                               separately with the
                               Commission.






Rev-C                                                                         2

   301





Attachment B




                               *This confidential
                               information has been
                               omitted and filed
                               separately with the
                               Commission.



Rev.-B                                                                        1

   302




Attachment B



                               *This confidential
                               information has been
                               omitted and filed
                               separately with the
                               Commission.



Rev.- B                                                                       2

   303












                               *This confidential
                               information has been
                               omitted and filed
                               separately with the
                               Commission.



   304



[BOEING LETTERHEAD]

6-1162-RLL-2287

Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia 30320


Subject:   Certification Flight Test Aircraft

Reference: Purchase Agreement No. 2025 (the Purchase Agreement) between The
           Boeing Company (Boeing) and Delta Air Lines (Customer) relating to
           Model 767-432ER aircraft (the Aircraft)

This 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
AGTA and the Purchase Agreement.

It is understood that three (3) of Customer's Model 767-432ER Aircraft (Test
Aircraft) will be used by Boeing in its certification flight test program, for
obtaining the FAA Type and Airworthiness Certificates required under Article 6
of the AGTA, prior to delivery to Customer. Boeing will not use the Test
Aircraft for more than eight hundred (800) flight test hours without the prior
written consent of Customer. Customer agrees to accept delivery of each of the
Test Aircraft without any reduction in the Aircraft Price on account of the
depreciation and wear and tear resulting from such testing, subject to the terms
and conditions set forth below.

1.           Aircraft Refurbishment.

             Boeing shall refurbish each Test Aircraft prior to delivery to
Customer to ensure such Test Aircraft complies with the Detail Specification.
Reasonable wear and tear shall be permissible in all areas of the Test Aircraft
except interior areas exposed to passenger view. Such interior areas shall be in
a condition, at time of delivery to Customer, comparable to the same areas of
other Model 767-432ER non test Aircraft delivered to Customer in the same time
period as the Test Aircraft.

2.           Production Record Revision and Service Bulletin Incorporation.

             During the refurbishment of each Test Aircraft, Boeing will
incorporate therein all applicable Production Record Revisions (PRR's) and
Service Bulletins which are released by Boeing for production incorporation in
other Model 767-432ER Aircraft scheduled for delivery to Customer prior to
scheduled delivery of


P.A. No. 2025

   305



Delta Air Lines, Inc.
6-1162-RLL-2287 Page 2

the Test Aircraft, except for any such PRR's and/or Service Bulletins which
Boeing determines, and Customer agrees, are impracticable to retrofit on the
Test Aircraft. Customer's agreement shall not be unreasonably withheld. Any
reasonable delay in the delivery of any of the Test Aircraft resulting from the
incorporation of such PRR's and/or Service Bulletins shall be an Excusable Delay
within the meaning of Article 10 of the AGTA . Boeing will review its plans for
incorporation of such PRR's and Service Bulletins with Customer prior to the
refurbishment of the Test Aircraft and if the reason for not incorporating any
such PRR or Service Bulletin is the unavailability of retrofit kits to Customer,
Boeing will furnish such retrofit kits to Customer at no charge as soon as they
can reasonably be made available and Boeing shall reimburse Customer for its
direct labor to install such kits at the then current Warranty Labor Rate.

3.           Warranty.

             The Boeing warranty for airframe and components of each Test
Aircraft shall run full term from delivery of each Test Aircraft. If any Boeing
supplier, except engine manufacturer, refuses to honor any Customer valid
warranty claim solely on the basis of use or time expiration relating to flight
test or refurbishment, Boeing shall assume responsibility for such claim using
the supplier warranty terms and conditions as though the warranty period began
with delivery of the Test Aircraft.

4.           Wheels, Tires and Brakes.

             Boeing shall install new tires, wheels and brakes on each Test
Aircraft, after such flight test and prior to delivery of each Test Aircraft.

5.           Accomplishment of "C" Check.

             Boeing will accomplish a Boeing-recommended "C" Check or equivalent
on each Test Aircraft prior to delivery thereof.

6.           List of Greases, Oils and Other Fluids.

             Boeing will provide Buyer in a timely manner a list of part and/or
specification numbers and suppliers of the greases, oils and other fluids used
to service the Test Aircraft during the flight test program.



P.A. No. 2025

   306



Delta Air Lines, Inc.
6-1162-RLL-2287 Page 3



                               *This confidential
                              information has been
                               omitted and filed
                              separately with the
                                  Commission.












9.           Other Terms and Conditions.

             All terms and conditions relating to the manufacture, purchase and
sale of the Test Aircraft as set forth in the Purchase Agreement shall remain in
full force and effect except as amended by the provisions herein.



P.A. No. 2025

   307



Delta Air Lines, Inc.
6-1162-RLL-2287 Page 4



10.          Flight Test Standby Spares.

             If applicable, in accordance with the provisions of Supplemental
Exhibit BFE/CDSPE/SPE/CSE to the Purchase Agreement, Customer and/or Boeing
shall provide BFE/CDSPE/SPE/CSE Standby Spares for Test Aircraft in the flight
test program in accordance with requirements mutually agreed to by Boeing and
Customer. The identification and scheduled requirement dates for such
BFE/CDSPE/SPE/CSE Standby Spares will be identified by Boeing in the BFE
Document referenced in Supplemental Exhibit BFE/CDSPE/SPE/CSE to the Purchase
Agreement.

Upon completion of the flight test program, any BFE standby spares provisioned
for flight test shall be allocated to fulfill open production requirements for
Customer's Aircraft, or returned to Customer, at Customer's option.


Very truly yours,

THE BOEING COMPANY


By   /s/ R. B. Woodard
   --------------------------------------

Its           President
   --------------------------------------

ACCEPTED AND AGREED TO:

Date:         October 21        , 1997
     ---------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
   --------------------------------------

Its President and Chief Executive Officer
   --------------------------------------


P.A. No. 2025

   308





[BOEING LETTERHEAD]

6-1162-RLL-2420


Delta Air Lines, Inc.
Hartsfield Atlanta International Airport
Atlanta, Georgia  30320

Subject: *This confidential information has been omitted and filed separately
with the Commission.


Reference: Purchase Agreement No. 2025 (the Purchase Agreement) between The
           Boeing Company (Boeing) and Delta Air Lines (Customer) relating to
           Model 767-432ER aircraft (the Aircraft)

This 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
AGTA and the Purchase Agreement.

1.            Model 767-400ER Pilot Type Rating.

             Boeing has established that the same pilot type rating for the
767-400ER and the current 767-300ER aircraft is a major program objective.
Boeing is confident that the foregoing objective is attainable and Boeing will
use its best reasonable efforts to achieve the objective.


                               *This confidential
                              information has been
                               omitted and filed
                              separately with the
                                  Commission.


P.A. No. 2025

   309



Delta Air Lines, Inc.
6-1162-RLL-2420 Page 2



Very truly yours,

THE BOEING COMPANY


By   /s/ R. B. Woodard
   -------------------------------------

Its            President
   -------------------------------------

ACCEPTED AND AGREED TO:


Date:        October 21            , 1997
      -----------------------------

DELTA AIR LINES, INC.


By   /s/ Leo F. Mullin
   ---------------------------------------

Its  President and Chief Executive Officer
     -------------------------------------


P.A. No. 2025