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|   | 1. | Table of Contents, Articles, Tables, Exhibits, and Letter Agreements: |
|--------|----|-----------------------------------------------------------------------|

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|     |                                                                                                              | Page                   | SA          |
|----------|-------------------------------------------------------------------------------------------------------------------|------------------------|-------------|
| ARTICLES | Number                                                                                                            | Number                 |
|     |                                                                                                              |                   |
| 1.       | Subject Matter of Sale                                                                                            | 1-1                    | SA 39       |
|     |                                                                                                              |                   |        |
| 2.       | Delivery, Title and Risk of Loss                                                                                  | 2-1                    |        |
|     |                                                                                                              |                   |        |
| 3.       | Price of Aircraft                                                                                                 | 3-1                    | SA 39       |
|     |                                                                                                              |                   |        |
| 4.       | Taxes                                                                                                             | 4-1                    |        |
|     |                                                                                                              |                   |        |
| 5.       | Payment                                                                                                           | 5-1                    |        |
|     |                                                                                                              |                   |        |
| 6.       | Excusable Delay                                                                                                   | 6-1                    |        |
|     |                                                                                                              |                   |        |
| 7.       | Changes to the Detail Specification                                                                               | 7-1                    | SA 39       |
|     |                                                                                                              |                   |        |
| 8.       | Federal Aviation Requirements andCertificates and Export License                                                  |  8-1              |  SA 39 |
|     |                                                                                                              |                   |        |
| 9.       | Representatives, Inspection,Flights and Test Data                                                                 |  9-1              |        |
|     |                                                                                                              |                   |        |
| 10.      | Assignment, Resale or Lease                                                                                       | 10-1                   |        |
|     |                                                                                                              |                   |        |
| 11.      | Termination for Certain Events                                                                                    | 11-1                   |        |
|     |                                                                                                              |                   |        |
| 12.      | Product Assurance, Disclaimer andRelease; Exclusion of Liabilities;Customer Support; Indemnificationand Insurance |    12-1 |        |
|     |                                                                                                              |                   |        |
| 13.      | Buyer Furnished Equipment andSpare Parts                                                                          |  13-1             |        |
|     |                                                                                                              |                   |        |
| 14.      | Contractual Notices and Requests                                                                                  | 14-1                   | SA 39       |
|     |                                                                                                              |                   |        |
| 15.      | Miscellaneous                                                                                                     | 15-1                   |        |

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|   | TABLE OF CONTENTS |
|--------|-------------------|

|     |                                                                                                                                                                                                                               | Page                                | SA          |
|----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------|-------------|
| TABLES   | Number                                                                                                                                                                                                                             | Number                              |
|     |                                                                                                                                                                                                                               |                                |
| 1.       | Aircraft Deliveries andDescriptions – 737-500                                                                                                                                                                                |  T-1                           |  SA 3  |
|     |                                                                                                                                                                                                                               |                                |        |
|     | Aircraft Deliveries andDescriptions – 737-700                                                                                                                                                                                |  T-2                           |  SA 55 |
|     |                                                                                                                                                                                                                               |                                |        |
|     | Aircraft Deliveries andDescriptions – 737-800                                                                                                                                                                                |  T-3                           |  SA 55 |
|     |                                                                                                                                                                                                                               |                                |        |
|     | Aircraft Deliveries andDescriptions – 737-600                                                                                                                                                                                |  T-4                           |  SA 4  |
|     |                                                                                                                                                                                                                               |                                |        |
|     | Aircraft Deliveries andDescriptions – 737-900                                                                                                                                                                                |  T-5                           |  SA 39 |
|     |                                                                                                                                                                                                                               |                                |        |
|     | Aircraft Deliveries andDescriptions – 737-900ER                                                                                                                                                                              |  T-6                           |  SA 53 |
|     |                                                                                                                                                                                                                               |                                |        |
| EXHIBITS |                                                                                                                                                                                                                               |                                |
|     |                                                                                                                                                                                                                               |                                |        |
| A-1      | Aircraft Configuration – Model 737-724(Aircraft delivering through July 2004)                                                                                                                                                |  SA 26                         |
|     |                                                                                                                                                                                                                               |                                |
| A-1.1    | Aircraft Configuration – Model 737-724(Aircraft delivering on or after August 2004)                                                                                                                                          |  SA 46                         |
|     |                                                                                                                                                                                                                               |                                |
| A-2      | Aircraft Configuration – Model 737-824(Aircraft delivering through July 2004)                                                                                                                                                |  SA 26                         |
|     |                                                                                                                                                                                                                               |                                |
| A-2.1    | Aircraft Configuration – Model 737-824(Aircraft delivering August 2004 throughDecember 2007)                                                                                                                                 |   SA 41                   |
|     |                                                                                                                                                                                                                               |                                |
| A-2.2    | Aircraft Configuration – Model 737-824(Aircraft delivering January 2008 throughJuly 2008)                                                                                                                                    |   SA 45                   |
|     |                                                                                                                                                                                                                               |                                |
| A-2.3    | Aircraft Configuration – Model 737-824(Aircraft scheduled to deliver between August 2008 and October 2010)                                                                                                                   |  SA 50                         |
|     |                                                                                                                                                                                                                               |                                |
| A-2.4    | Aircraft Configuration – Model 737-824(Aircraft scheduled to deliver in or after November 2010)                                                                                                                              |   SA 50                   |
|     |                                                                                                                                                                                                                               |                                |
| A-3      | Aircraft Configuration – Model 737-624                                                                                                                                                                                       | SA 1                                |
|     |                                                                                                                                                                                                                               |                                |
| A-4      | Aircraft Configuration – Model 737-524                                                                                                                                                                                       | SA 3                                |
|     |                                                                                                                                                                                                                               |                                |
| A-5      | Aircraft Configuration – Model 737-924[CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                      |     SA 26       |
|     |                                                                                                                                                                                                                               |                                |
| A-6      | Aircraft Configuration – Model 737-924ER[CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                    |     SA 45       |
|     |                                                                                                                                                                                                                               |                                |
| A-6.1    | Aircraft Configuration – Model 737-924ER[CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                    |     SA 53       |
|     |                                                                                                                                                                                                                               |                                |
| A-6.2    | Aircraft Configuration – Model 737-924ER[CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                    |     SA 53       |
|     |                                                                                                                                                                                                                               |                                |
| B        | Product Assurance Document                                                                                                                                                                                                         | SA 1                                |
|     |                                                                                                                                                                                                                               |                                |
| C        | Customer Support Document – Code Two –Major Model Differences                                                                                                                                                          |  SA 1                          |
|     |                                                                                                                                                                                                                               |                                |
| C1       | Customer Support Document – Code Three –Minor Model Differences                                                                                                                                                        |  SA 39                         |
|     |                                                                                                                                                                                                                               |                                |
| D        | Aircraft Price Adjustments – New GenerationAircraft (1995 Base Price - [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]     |      SA 1  |
|     |                                                                                                                                                                                                                               |                                |
| D1       | Airframe and Engine Price Adjustments –Current Generation Aircraft                                                                                                                                                           |  SA 1                          |
|     |                                                                                                                                                                                                                               |                                |
| D2       | Aircraft Price Adjustments – New GenerationAircraft (1997 Base Price - [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]     |      SA 5  |
|     |                                                                                                                                                                                                                               |                                |
| D3       | Aircraft Price Adjustments - NewGeneration Aircraft (July 2003 Base Price –[CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] |      SA 41 |
|     |                                                                                                                                                                                                                               |                                |
| D4       | Escalation Adjustment – Airframe andOptional Features [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                      |     SA 41       |
|     |                                                                                                                                                                                                                               |                                |
| E        | Buyer Furnished Equipment Provisions Document                                                                                                                                                                                      | SA 39                               |
|     |                                                                                                                                                                                                                               |                                |
| F        | Defined Terms Document                                                                                                                                                                                                             | SA 5                                |

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|   | TABLE OF CONTENTS |
|--------|-------------------|

|              |                                                |        | SA     |
|-------------------|-----------------------------------------------------|-------------|--------|
| LETTER AGREEMENTS |                                                | Number      |
|              |                                                |        |   |
| 1951-1            | Not Used                                            |        |
|              |                                                |        |   |
| 1951-2R4          | Seller Purchased Equipment                          | SA 39       |
|              |                                                |        |   |
| 1951-3R22         | Option Aircraft-Model 737-824 Aircraft              | SA 38       |
|              |                                                |        |
| 1951-4R1          | Waiver of Aircraft Demonstration                    | SA 1        |
|              |                                                |        |
| 1951-5R3          | Promotional Support – New GenerationAircraft  |  SA 48 |
|              |                                                |        |
| 1951-6            | Configuration Matters                               |        |
|              |                                                |        |
| 1951-7R1          | Spares Initial Provisioning                         | SA 1        |
|              |                                                |        |
| 1951-8R2          | Escalation Sharing – New Generation Aircraft  | SA 4        |
|              |                                                |        |
| 1951-9R20         | Option Aircraft-Model 737-724 Aircraft              | SA 55       |
|              |                                                |        |
| 1951-11R1         | Escalation Sharing-Current GenerationAircraft       |  SA 4  |
|              |                                                |        |
| 1951-12R7         | Option Aircraft – Model 737-924 Aircraft      | SA 32       |
|              |                                                |        |
| 1951-13           | Configuration Matters – Model 737-924         | SA 5        |
|              |                                                |        |
| 1951-14           | Installation of Cabin Systems Equipment737-924      |  SA 22 |
|  1951-15     |  Configuration Matters – Model 737-924ER |  SA 39 |

|                         |                                                                                                                                                                                                 |                                            | SA     |
|------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------|--------|
| RESTRICTED LETTER AGREEMENTS |                                                                                                                                                                                                 | Number                                          |
|                         |                                                                                                                                                                                                 |                                            |   |
| 6-1162-MMF-295               | Performance Guarantees – Model737-724 Aircraft                                                                                                                                                 |                                            |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-MMF-296               | Performance Guarantees – Model737-824 Aircraft                                                                                                                                                 |                                            |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-MMF-308R4             | Disclosure of ConfidentialInformation                                                                                                                                                                |  SA 39                                     |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-MMF-309R1             | [CONFIDENTIAL MATERIAL OMITTED ANDFILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                                     |     SA 1                    |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-MMF-311R6             | [CONFIDENTIAL MATERIAL OMITTED ANDFILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                                     |     SA 46                   |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-MMF-312R1             | Special Purchase Agreement Provisions                                                                                                                                                                | SA 1                                            |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-MMF-319               | Special Provisions Relating to theRescheduled Aircraft                                                                                                                                               |                                            |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-MMF-378R1             | Performance Guarantees – Model737-524 Aircraft                                                                                                                                                 |  SA 3                                      |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-GOC-015R1             | [CONFIDENTIAL MATERIAL OMITTED ANDFILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSIONPURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                                      |     SA 31                   |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-GOC-131R10            | Special Matters                                                                                                                                                                                      | SA 46                                           |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-DMH-365               | Performance Guarantees – Model737-924 Aircraft                                                                                                                                                 |  SA 5                                      |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-DMH-624               | [CONFIDENTIAL MATERIAL OMITTED ANDFILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                                     |     SA 8                    |
|  6-1162-DMH-680         |  Delivery Delay Resolution Program                                                                                                                                                              |  SA 9                                      |
|  6-1162-DMH-1020        |  [CONFIDENTIAL MATERIAL OMITTED ANDFILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                               |      SA 14   |
| 6-1162-DMH-1035              | [CONFIDENTIAL MATERIAL OMITTED ANDFILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                                |     SA 15                   |
| 6-1162-DMH-1054              | [CONFIDENTIAL MATERIAL OMITTED ANDFILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                           |     SA 16         |
| 6-1162-CHL-048               | Rescheduled Aircraft Agreement                                                                                                                                                                       | SA 26                                      |
| 6-1162-CHL-195               | Restructure Agreement for Model737NG and 757-300 Aircraft                                                                                                                                            |  SA 30                                |
| 6-1162-MSA-768               | Performance Guarantees – Model737-924ER Aircraft                                                                                                                                               |  SA 39                                |
| 6-1162-SEE-133               | [CONFIDENTIAL MATERIAL OMITTED ANDFILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]                                                |     SA 46              |
| 6-1162-SEE-0176R4            | Record Option Proposals                                                                                                                                                                         | SA 48                                           |
| 6-1162-SEE-0187              | Passenger Service Unit Resolution                                                                                                                                                                    | SA 50                                      |
| 6-1162-SEE-0225R1       | Use of Aircraft – Carbon Brakes [CONFIDENTIAL MATERIAL OMITTED ANDFILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] Testing  |       SA 50       |
| 6-1162-SEE-0263              | Use of Aircraft – 737NGPerformance Improvement Package Testing                                                                                                                                 |   SA 50                               |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-RCN-1888              | Use of Aircraft – Boeing 747-800 and 787 Flight Test Training                                                                                                                                  |  SA 53                                     |
|                         |                                                                                                                                                                                                 |                                            |
| 6-1162-RCN-1890              | Use of Aircraft for Testing                                                                                                                                                                          | SA 55                                           |

| SUPPLEMENTAL AGREEMENTS             | DATED AS OF:            |
|-------------------------------------|-------------------------|
|                                |                    |
| Supplemental Agreement No. 1   | October 10, 1996        |
| Supplemental Agreement No. 2   | March 5, 1997           |
| Supplemental Agreement No. 3   | July 17, 1997           |
| Supplemental Agreement No. 4   | October 10, 1997        |
| Supplemental Agreement No. 5   | May 21, 1998            |
| Supplemental Agreement No. 6   | July 30, 1998           |
| Supplemental Agreement No. 7   | November 12, 1998       |
| Supplemental Agreement No. 8   | December 7, 1998        |
| Supplemental Agreement No. 9   | February 18, 1999       |
| Supplemental Agreement No. 10  | March 19, 1999          |
| Supplemental Agreement No. 11  | May 14, 1999            |
| Supplemental Agreement No. 12  | July 2, 1999            |
| Supplemental Agreement No. 13  | October 13, 1999        |
| Supplemental Agreement No. 14  | December 13, 1999       |
| Supplemental Agreement No. 15  | January 13, 2000        |
| Supplemental Agreement No. 16  | March 17, 2000          |
| Supplemental Agreement No. 17  | May 16, 2000            |
| Supplemental Agreement No. 18  | September 11, 2000      |
| Supplemental Agreement No. 19  | October 31, 2000        |
| Supplemental Agreement No. 20  | December 21, 2000       |
| Supplemental Agreement No. 21  | March 30, 2001          |
| Supplemental Agreement No. 22  | May 23, 2001            |
| Supplemental Agreement No. 23  | June 29, 2001           |
| Supplemental Agreement No. 24  | August 31, 2001         |
| Supplemental Agreement No. 25  | December 31, 2001       |
| Supplemental Agreement No. 26  | March 29, 2002          |
| Supplemental Agreement No. 27  | November 6, 2002        |
| Supplemental Agreement No. 28  | April 1, 2003           |
| Supplemental Agreement No. 29  | August 19, 2003         |
| Supplemental Agreement No. 30  | November 4, 2003        |
| Supplemental Agreement No. 31  | August 20, 2004         |
| Supplemental Agreement No. 32  | December 29, 2004       |
| Supplemental Agreement No. 33  | December 29, 2004       |
| Supplemental Agreement No. 34  | June 22, 2005           |
| Supplemental Agreement No. 35  | June 30, 2005           |
| Supplemental Agreement No. 36  | July 21, 2005           |
| Supplemental Agreement No. 37  | March 30, 2006          |
| Supplemental Agreement No. 38  | June 6, 2006            |
| Supplemental Agreement No. 39  | August 3, 2006          |
| Supplemental Agreement No. 40  | December 5, 2006        |
| Supplemental Agreement No. 41  | June 1, 2007            |
| Supplemental Agreement No. 42  | June 13, 2007           |
| Supplemental Agreement No. 43  | July 18, 2007           |
| Supplemental Agreement No. 44  | December 7, 2007        |
| Supplemental Agreement No. 45  | February 20, 2008       |
| Supplemental Agreement No. 46  | June 25, 2008           |
| Supplemental Agreement No. 47  | October 30, 2008        |
| Supplemental Agreement No. 48  | January 29, 2009        |
| Supplemental Agreement No. 49  | May 1, 2009             |
| Supplemental Agreement No. 50  | July 23, 2009           |
| Supplemental Agreement No. 51       | August 5, 2009     |
| Supplemental Agreement No. 52       | August 31, 2009    |
| Supplemental Agreement No. 53       | December 23, 2009  |
| Supplemental Agreement No. 55       | March 31, 2010          |

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| Aircraft No. | EWA No. *                                                       | Estimated Flight Test Hrs.                                                                                                                                                    | Actual Flight Test Hrs. | Scheduled Delivery Month | Revised Delivery Month | Test Program $ Value                                                                                                                                          | Wheels, tires, brakes replaced? | Engines Borescoped? |
|--------------|-----------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------|--------------------------|------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------|---------------------|
| 3138/YJ571   | Y3333-003Y3232-008Y3290-001Y3242-021Y3013-053Y2227-004Y3243-048 | No greater than [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]   |                    | TBD**                    | TBD**                  | [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]   | No                              | Yes                 |
| 3138/YJ571   | Y3243-046Y3243-045                                              | No greater than 10                                                                                                                                                            |                    | TBD**                    | TBD**                  | $23,000                                                                                                                                                       | No                              | Yes                 |
|         |                                                            |                                                                                                                                                                          |                    |                     |                   |                                                                                                                                                          |                            |                |
|         |                                                            |                                                                                                                                                                          |                    |                     |                   |                                                                                                                                                          |                            |                |

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