Exhibit 4.12




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TABLE OF CONTENTS
 PageSECTION 1.1 Acceptance of Depositary
    
    
    2SECTION 1.2 Establishment of Accounts
    
    
    2SECTION 2.1 Deposits
    
    
    2SECTION 2.2 Interest
    
    
    2SECTION 2.3 Withdrawals
    
    
    3SECTION 2.4 Other Accounts
    
    
    3SECTION 3. Termination
    
    
    4SECTION 4. Payments
    
    
    4SECTION 5. Representation and Warranties
    
    
    4SECTION 6. Transfer
    
    
    5SECTION 7. Amendment, Etc
    
    
    6SECTION 8. Notices
    
    
    6SECTION 9. Obligations Unconditional
    
    
    7SECTION 10. Entire Agreement
    
    
    7SECTION 11. Governing Law
    
    
    7SECTION 12. Submission to Non-Exclusive Jurisdiction in New York
    
    
    7SECTION 13. Waiver of Jury Trial Right
    
    
    7SECTION 14. Counterparts
    
    
    7SECTION 15. Rights of Receiptholders
    
    
    7SECTION 16. Limitation on Damages
    
    
    8
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Agreement Escrow Agent Depositary
 W I T N E S S E T H
 US Airways Pass Through Trustee Trust Supplement Pass Through Trust
Agreement Certificates Issuance Date
 Underwriters Investors
 Note Purchase Agreement Equipment Notes Net Proceeds
 Paying Agent Escrow and Paying Agent Agreement




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Acceptance of Depositary
 Establishment of Accounts Account Accounts
 Deposits Deposit Date Deposit Deposits
 Interest Interest Payment Date
 -2-




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Withdrawals Notice of Purchase
Withdrawal Business Day
 Notice of Final Withdrawal Final Withdrawal
 Notice of Replacement
Withdrawal Replacement Withdrawal
 Withdrawal Notice
 Other Accounts
 -3-




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Termination
 Payments Taxes
 Representation and Warranties
  -4-




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Transfer
 -5-




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Transfer Assignment and Assumption Agreement Successor Trust
 Amendment, Etc
 Notices
  -6-




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Obligations Unconditional
 Entire Agreement
 Governing Law
 Submission to Non-Exclusive Jurisdiction in New York
 Waiver of Jury Trial Right
 Counterparts
 Rights of Receiptholders
 -7-




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Limitation on Damages
 -8-




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WELLS FARGO BANK NORTHWEST,
NATIONAL ASSOCIATION,
      as Escrow AgentBy
    /s/ Scott RosevearName:
    Scott RosevearTitle:
    Vice PresidentTHE BANK OF NEW YORK MELLON,
      as DepositaryBy
    /s/ Mary MiselisName:
    Mary MiselisTitle:
    Vice President




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Schedule of Deposits
 Aircraft Type
    
    Deposit Amount
    
    Account No.Airbus A321-231
    
    $
    9,302,000
    
    
    
    788404Airbus A321-231
    
    $
    9,302,000
    
    
    
    788405Airbus A321-231
    
    $
    9,302,000
    
    
    
    788406Airbus A321-231
    
    $
    9,318,000
    
    
    
    788407Airbus A321-231
    
    $
    8,094,000
    
    
    
    788408Airbus A321-231
    
    $
    8,213,000
    
    
    
    788409Airbus A330-243
    
    $
    16,648,000
    
    
    
    788410Airbus A330-243
    
    $
    16,636,000
    
    
    
    788411Airbus A320-214
    
    $
    7,468,000
    
    
    
    788412




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Deposit Agreement Depositary
   WELLS FARGO BANK NORTHWEST,
NATIONAL ASSOCIATION,
      as Escrow AgentByName:Title:




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Deposit Agreement Depositary
   WELLS FARGO BANK NORTHWEST,
NATIONAL ASSOCIATION,
      as Escrow AgentByName:Title:




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Deposit Agreement Depositary
   WELLS FARGO BANK NORTHWEST,
NATIONAL ASSOCIATION,
      as Escrow AgentByName:Title: