| A.   | Boeing      and Customer have heretofore entered into that certain Purchase Agreement      No. 1977, dated October 31, 1997, as amended and supplemented,      (capitalized terms used herein without definition shall have the meanings      specified therefor in such PurchaseAgreement). |
|----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| B.   | Pursuant      to Letter Agreement No. 6-1162-AKP-075 (the “Rights Letter”), Boeing and      Customer have agreed to, among other things, treatment of aircraft      Purchase Rights. |
|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| C. | Pursuant      to Letter Agreement No. 6-1162-LAJ-771, Boeing and Customer have agreed      to, among other things, treatment of the Advance Payments of the Deferred      Aircraft. |
|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| D. | Pursuant      to Letter Agreement No. 6-1162-LAJ-936, Boeing and Customer have agreed      to, among other things, treatment of acceleration of Deferred      Aircraft. |
|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| E. | Pursuant      to Purchase Agreement No. 1977 Supplement Agreement No. 19 (“SA19”),      Boeing and Customer have agreed to, among other things,      [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION      PURSUANT TO A REQUEST FOR CONFIDENTIAL  TREATMENT]. |
|----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| F. | Customer      and Boeing desire to amend and supplement the Purchase Agreement as      provided below. |
|----|--------------------------------------------------------------------------------------------------------|

| 1.   | Amendment      to Reflect Customer’s [CONFIDENTIAL PORTION OMITTED AND      FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR      CONFIDENTIAL TREATMENT]. |
|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 1.1.   | The Purchase      Agreement is amended and supplemented to reflect the[CONFIDENTIAL PORTION OMITTED AND      FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR      CONFIDENTIAL TREATMENT] Customer of the      Scheduled Delivery Month [CONFIDENTIAL PORTION OMITTED AND      FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR      CONFIDENTIAL TREATMENT]. |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 1.2.   | Pursuant to Section      6 of SA19, as revised in Table 1(R2) in SA21, [CONFIDENTIAL PORTION OMITTED AND      FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR      CONFIDENTIAL TREATMENT]. |
|------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.   | [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIALTREATMENT]. |
|----------------|------------------------------------------------------------------------------------------------------------------------------------|

| 2.1.   | Table 1(R2) to the      Purchase Agreement is hereby replaced in its entirety with the revised      Table 1(R3) attached hereto and hereby made a part of the Purchase      Agreement. [CONFIDENTIAL PORTION OMITTED AND      FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR      CONFIDENTIAL TREATMENT]. In addition,      [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIALTREATMENT]. |
|------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.2 | Letter      Agreement 6-1162-LAJ-771, paragraph 2 (“Advance Payments for Certain      Aircraft”) describes Schedule 1 to Table 1 setting forth the 737 Advance      Payment Schedule. The excess [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] and as such, Schedule 1 will no      longer be revised. |
|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.3 | In      recognition of the fact the configuration of Customer’s Model 737-823      Aircraft is in the process of being updated, the previously selected      Optional Features that were selected during initial configuration for the      Deferred Aircraft will be incorporated in Table 1(R3) as a placeholder      until Customer selects Optional Features or other desired amendments to      the Detail Specification (”Configuration Changes”). The effects of all      Configuration Changes, which are mutually agreed upon between Boeing and      Customer for incorporation into the Detail Specification will be      incorporated into Exhibit A by written amendment no later than [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIALTREATMENT]. |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.   | Amendment      to Reflect Customer’s Exercise of MADP  Rights. |
|----------------|----------------------------------------------------------------------|

| 3.1.   | The Purchase      Agreement is amended and supplemented to reflect the exercising of      [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] Rights Aircraft      [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] by Customer with the      Scheduled Delivery [CONFIDENTIAL PORTION OMITTED AND      FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR      CONFIDENTIAL TREATMENT] (“Exercised MADP      Aircraft”). |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.2.   | The      Scheduled Delivery Month and Advanced Payment Schedule for the aircraft is      set forth in Table 1A (R2), attachedhereto. |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.3.  In      recognition of the fact the configuration of Customer’s Model 737-823      Aircraft is in the process of being updated, the previously selected      Optional Features that were selected during initial configuration for the      Deferred Aircraft will be incorporated in Table 1A(R2) as a placeholder      until Customer selects Optional Features or other desired amendments to      the Detail Specification (”Configuration Changes”). The effects of all      Configuration Changes, which are mutually agreed upon between Boeing and      Customer for incorporation into the Detail Specification will be      incorporated into Exhibit A by written amendment no later than [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIALTREATMENT]. |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.   | Table      of Contents.  The Table of      Contents dated December 2007 is replaced in its entirety with the revised      Table of Contents dated January 2008 (Attachment A hereto) to reflect      amendments made to the Purchase Agreement by this    Agreement. |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 5.   | MADP      Rights.  Pursuant to SA22, Attachment B (R3) to the      Rights Letter is hereby replaced in its entirety with the revised      Attachment B (R4) attached hereto and hereby made part of the Purchase      Agreement. The revised number of certain Customer MADP rights pursuant to      this Agreement are reflected in the attached Attachment B (R4)      hereto. |
|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| 6.   | QADP      Rights.  Pursuant to SA21, Attachment C (R2) to the      Rights Letter are hereby replaced in its entirety with the revised      Attachment C (R3) attached hereto and hereby made part of the Purchase      Agreement. The revised number of certain Customer QADP rights pursuant to      this Agreement are reflected in the attached Attachment C (R3)      hereto. |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 7. | Supplement      Exhibit BFE1. Supplement Exhibit      BFE1 (R3) is hereby replaced in its entirety with the revised Supplement      Exhibit BFE1 (R4) attached hereto and hereby made part of the Purchase      Agreement. The updated on-dock dates for all contracted firm Aircraft thru      December 2013 are reflected in the attached Supplement Exhibit BFE1      (R4). |
|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 8. | Advance      Payments for Aircraft.  Due at signing of      this Agreement, Customer owes Boeing [CONFIDENTIAL PORTION OMITTED AND      FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR      CONFIDENTIAL TREATMENT]. |
|----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9. | Effect      on Purchase Agreement.  Except as expressly set forth      herein, all terms and provisions contained in the Purchase Agreement shall      remain in full force and effect. This Agreement contains the entire      agreement between the parties with respect to the subject matter hereof      and supersedes all previous proposals, and agreements, understandings,      commitments or representations whatsoever, oral or written, with respect      to the subject matter hereof and may be changed only in writing signed by      authorized representatives of theparties. |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| AMERICAN      AIRLINES, INC.   By /s/ Beverly      Goulet                                       ItsVP Corporate Development and      Treasurer  | THE      BOEING COMPANY   By/s/ Thomas R. Winter                             Its         Attorney-In-Fact                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

|   | Attachments: |
|--------|--------------|

|   | Attachment      A, Table of Contents (R4) to Purchase Agreement No.  1977 |
|--------|---------------------------------------------------------------------------|

|   | Table      1A (R2) to Purchase Agreement No. 1977, 737-800 Exercised Rights Aircraft      Delivery, Description, Price and Advance  Payments |
|--------|----------------------------------------------------------------------------------------------------------------------------------------------|

|   | Attachment      B (R4) to Letter Agreement 6-1162-AKP-075, Aircraft Purchase Rights and      Substitution Rights |
|--------|------------------------------------------------------------------------------------------------------------------|

|   | Attachment      C (R3) to Letter Agreement 6-1162-AKP-075, Aircraft Purchase Rights and      Substitution Rights |
|--------|------------------------------------------------------------------------------------------------------------------|

|   | Supplement      Exhibit BFE1 (R4) to Purchase Agreement No. 1977, 737-823 BFE      Variables |
|--------|----------------------------------------------------------------------------------------------|

----

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----

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|                                   |           Aircraft                           Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               |

|                                   |           Aircraft                           Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               |

----

|                                   |           Aircraft                           Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               | [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT]                                                                                                                                                                                                                                                                             |

|                                   |           Aircraft                              Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               |

|                                   |           Aircraft                                  Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               | [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT]                                                                                                                                                                                                                                                                                                                       |

----

|                                   |           Aircraft                                  Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               |

|                                   |   [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    | [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT]             |
| Winglets                               |

|                                   |           Aircraft                             Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               |

----

|                                   |           Aircraft                             Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               |

|                                   |           Aircraft                                Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               |

|                                   |           Aircraft                              Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               |

----

|                                   |           Aircraft                                Aircraft     [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               |

|                                   |     Aircraft  [CONFIDENTIAL      PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A      REQUEST FOR CONFIDENTIAL TREATMENT] |
|----------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                   |
| Seats                                  |
| Galleys/Furnishings                    |
| Antennas      & Mounting Equipment |
| Avionics                               |
| Cabin      Systems Equipment           |
| Miscellaneous      Emergency Equipment |
| Textiles/Raw      Material             |
| Cargo      Systems                     |
| Provision      Kits                    |
| Winglets                               |

| 3.   | Additional      Delivery Requirements |
|----------------|---------------------------------------|