Document:

Deposit Agreement (Class C)

 Exhibit 4.13 
 EXECUTION VERSION 
 DEPOSIT AGREEMENT 

(Class C) 
 Dated
as of May 14, 2012 
 between 
 WELLS FARGO BANK NORTHWEST, NATIONAL ASSOCIATION 
 as Escrow Agent 

and 
 NATIXIS
S.A., ACTING THROUGH ITS NEW YORK BRANCH 
 as Depositary 

 TABLE OF CONTENTS 

 

					
	 	  	Page	 
		
	SECTION 1.1 Acceptance of Depositary.	  	 	2	  
		
	SECTION 1.2 Establishment of Accounts.	  	 	2	  
		
	SECTION 2.1 Deposits.	  	 	2	  
		
	SECTION 2.2 Interest.	  	 	2	  
		
	SECTION 2.3 Withdrawals.	  	 	3	  
		
	SECTION 2.4 Other Accounts.	  	 	3	  
		
	SECTION 3. Termination.	  	 	4	  
		
	SECTION 4. Payments.	  	 	4	  
		
	SECTION 5. Representation and Warranties.	  	 	5	  
		
	SECTION 6. Transfer.	  	 	6	  
		
	SECTION 7. Amendment, Etc.	  	 	6	  
		
	SECTION 8. Notices.	  	 	6	  
		
	SECTION 9. Obligations Unconditional.	  	 	7	  
		
	SECTION 10. Entire Agreement.	  	 	7	  
		
	SECTION 11. Governing Law.	  	 	7	  
		
	SECTION 12. Submission to Non-Exclusive Jurisdiction in New York.	  	 	7	  
		
	SECTION 13. Waiver of Jury Trial Right.	  	 	8	  
		
	SECTION 14. Counterparts.	  	 	8	  
		
	SECTION 15. Rights of Receiptholders.	  	 	8	  
		
	SECTION 16. Limitation on Damages.	  	 	8	  
		
	SECTION 17. Miscellaneous.	  	 	8	  
		
	SECTION 18. Security Procedures.	  	 	10	  
		
	SECTION 19. Head Office Obligations.	  	 	10	  
		
	SECTION 20. Waiver of Immunity.	  	 	10	  

  
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 DEPOSIT AGREEMENT (Class C) dated as of May 14, 2012 (as amended, modified or
supplemented from time to time, this “Agreement”) between WELLS FARGO BANK NORTHWEST, NATIONAL ASSOCIATION, a national banking association, as Escrow Agent under the Escrow and Paying Agent Agreement referred to below (in such
capacity, together with its successors in such capacity, the “Escrow Agent”), and NATIXIS S.A., acting through its New York Branch, a société anonyme organized and existing under the laws of France and licensed
under the laws of the State of New York, as depositary bank (the “Depositary”). 
 W I T
N E S S E T H 
 WHEREAS, US Airways, Inc. (“US Airways”) and
Wilmington Trust Company, not in its individual capacity except as otherwise expressly provided therein, but solely as trustee (in such capacity, together with its successors in such capacity, the “Pass Through Trustee”) have
entered into a Trust Supplement, dated as of May 14, 2012 (the “Trust Supplement”) to the Pass Through Trust Agreement dated as of December 21, 2010 (together, as amended, modified or supplemented from time to time in
accordance with the terms thereof, the “Pass Through Trust Agreement”) relating to US Airways Pass Through Trust 2012-1C-O pursuant to which the US Airways Pass Through Trust, Series 2012-1C-O Certificates referred to therein (the
“Certificates”) are being issued (the date of such issuance, the “Issuance Date”); 
 WHEREAS,
US Airways and Morgan Stanley & Co. LLC, Citigroup Global Markets Inc. and Goldman, Sachs & Co., as representatives of the several Underwriters (collectively, the “Underwriters” and, together with their respective
transferees and assigns as registered owners of the Certificates, the “Investors”) have entered into an Underwriting Agreement dated as of April 30, 2012 pursuant to which the Pass Through Trustee will issue and sell the
Certificates to the Underwriters; 
 WHEREAS, US Airways, the Pass Through Trustee, two other pass through trustees and certain
other persons concurrently herewith are entering into the Note Purchase Agreement, dated as of the date hereof (the “Note Purchase Agreement”), pursuant to which the Pass Through Trustee has agreed to acquire from time to time on or
prior to the Delivery Period Termination Date (as defined in the Note Purchase Agreement) equipment notes (the “Equipment Notes”) issued to finance certain aircraft currently owned by US Airways and certain other aircraft to be
acquired by US Airways, as owner, utilizing a portion of the proceeds from the sale of the Certificates (the “Net Proceeds”); 
 WHEREAS, the Escrow Agent, the Underwriters, the Pass Through Trustee and Wilmington Trust Company, as paying agent for the Escrow Agent (in such capacity, together with its successors in such capacity,
the “Paying Agent”) concurrently herewith are entering into an Escrow and Paying Agent Agreement, dated as of the date hereof (as amended, modified or supplemented from time to time in accordance with the terms thereof, the
“Escrow and Paying Agent Agreement”); and 
 WHEREAS, the Underwriters and the Pass Through Trustee intend that
the Net Proceeds be held in escrow by the Escrow Agent on behalf of the Investors pursuant to the 

 
Escrow and Paying Agent Agreement, subject to withdrawal upon request of and proper certification by the Pass Through Trustee for the purpose of purchasing Equipment Notes, and that pending such
withdrawal the Net Proceeds be deposited by the Escrow Agent with the Depositary pursuant to this Agreement, which provides for the Depositary to pay interest for distribution to the Investors and to establish accounts from which the Escrow Agent
shall make withdrawals upon request of and proper certification by the Pass Through Trustee. 
 NOW, THEREFORE, in consideration
of the obligations contained herein, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows: 

SECTION 1.1 Acceptance of Depositary. The Depositary hereby agrees to act as depositary bank as provided herein and in connection
therewith to accept all amounts to be delivered to or held by the Depositary pursuant to the terms of this Agreement. The Depositary further agrees to hold, maintain and safeguard the Deposits and the Accounts (as defined below) during the term of
this Agreement in accordance with the provisions of this Agreement. The Escrow Agent shall not have any right to withdraw, assign or otherwise transfer moneys held in the Accounts except as permitted by this Agreement. 

SECTION 1.2 Establishment of Accounts. The Escrow Agent hereby instructs the Depositary, and the Depositary agrees, to establish
the separate deposit accounts listed on Schedule I hereto and to establish such additional separate deposit accounts as may be required in connection with the deposits contemplated by Section 2.4 hereof (each, an “Account” and
collectively, the “Accounts”), each in the name of the Escrow Agent and all on the terms and conditions set forth in this Agreement. 
 SECTION 2.1 Deposits. The Escrow Agent shall direct the Underwriters to deposit with the Depositary on the date of this Agreement (the “Deposit Date”) in Federal (same day) funds
by wire transfer to: JPMorgan Chase Bank, National Association, ABA No. 021-000-021 for the account of Natixis, NY Branch, Account Number: 544-7-75330, Reference: US Airways 2012-1 EETC Depositary, and the Depositary shall accept from the
Underwriters, on behalf of the Escrow Agent, the sum of US $118,636,000. Upon acceptance of such sum, the Depositary shall (i) establish each of the deposits specified in Schedule I hereto maturing on June 30, 2013 (including any deposit
made pursuant to Section 2.4 hereof, individually, a “Deposit” and, collectively, the “Deposits”) and (ii) credit each Deposit to the related Account as set forth therein. No amount shall be deposited in
any Account other than the related Deposit. 
 SECTION 2.2 Interest. Each Deposit shall bear interest from and including
the date of deposit to but excluding the date of withdrawal at the rate of 9.125% per annum (computed on the basis of a year of twelve 30-day months) payable to the Paying Agent on behalf of the Escrow Agent semi-annually in arrears on each
April 1 and October 1, commencing on October 1, 2012 (each, an “Interest Payment Date”), and on the date of the Final Withdrawal (as defined below), or the date of the Replacement Withdrawal (as defined below), as
applicable, all in accordance with the terms of this Agreement (whether or not any such Deposit is withdrawn on an Interest Payment Date). Interest accrued on any Deposit that is withdrawn pursuant to a Notice of Purchase Withdrawal (as defined
below) shall be paid on the next Interest Payment Date, notwithstanding any intervening Final Withdrawal (as defined below). 

  
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 SECTION 2.3 Withdrawals. (a) On and after the date seven days after the establishment
of any Deposit, the Escrow Agent may, by providing at least three Business Days’ prior notice of withdrawal to the Depositary in the form of Exhibit A hereto (a “Notice of Purchase Withdrawal”), withdraw not less than the
entire balance of such Deposit, except that at any time prior to the actual withdrawal of such Deposit, the Escrow Agent or the Pass Through Trustee may, by notice to the Depositary, which notice has been actually received by the Depositary prior to
such actual withdrawal, cancel such withdrawal (including on the scheduled date therefor), and thereafter such Deposit shall continue to be maintained by the Depositary in accordance with the original terms thereof. Following such withdrawal the
balance in the related Account shall be zero and the Depositary shall close such Account. As used in this Agreement, “Business Day” means any day, other than a Saturday, Sunday or other day on which commercial banks are authorized
or required by law to close in New York, New York, Phoenix, Arizona or Wilmington, Delaware. The Depositary may waive the foregoing requirement that any Deposit can only be withdrawn on or after seven days after the establishment thereof, and may
instead reserve the right, upon at least 14 days’ prior written notice to US Airways, the Escrow Agent and the Pass Through Trustee, to require seven days’ notice for any withdrawal. 

(b) (i) The Escrow Agent may, by providing at least 15 days’ prior notice of withdrawal to the Depositary in the form of Exhibit B
hereto (a “Notice of Final Withdrawal”), withdraw the entire amount of all of the remaining Deposits together with the payment by the Depositary of all accrued and unpaid interest on such Deposits to but excluding the specified date
of withdrawal (a “Final Withdrawal”), on such date as shall be specified in such Notice of Final Withdrawal. If a Notice of Final Withdrawal has not been given to the Depositary on or before June 10, 2013 and there are
unwithdrawn Deposits on such date, the Depositary shall pay the amount of the Final Withdrawal to the Paying Agent on June 30, 2013. 
 (ii) The Escrow Agent may, by providing at least five Business Days’ prior notice of withdrawal to the Depositary in the form of Exhibit C hereto (a “Notice of Replacement
Withdrawal”), withdraw the entire amount of all Deposits then held by the Depositary together with all accrued and unpaid interest on such Deposits (including Deposits previously withdrawn pursuant to a Notice of Purchase Withdrawal) to but
excluding the specified date of withdrawal (a “Replacement Withdrawal”), on such date as shall be specified in such Notice of Replacement Withdrawal. 
 (c) If the Depositary receives a duly completed Notice of Purchase Withdrawal, Notice of Final Withdrawal or Notice of Replacement Withdrawal (each, a “Withdrawal Notice”) complying with
the provisions of this Agreement, it shall make the payments specified therein in accordance with the provisions of this Agreement. Notwithstanding anything to the contrary contained in this Agreement, in no event shall the Depositary be required,
pursuant to any Withdrawal Notice or otherwise, to make payments hereunder on or in respect of any Deposit in excess of the amount of such Deposit together with accrued interest thereon as provided in this Agreement. 

SECTION 2.4 Other Accounts. On the date of withdrawal of any Deposit (other than the date of the Final Withdrawal or Replacement
Withdrawal), the Escrow Agent, or the Pass Through Trustee on behalf of the Escrow Agent, shall re-deposit with the Depositary any 

  
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portion thereof not used to acquire Equipment Notes and the Depositary shall accept the same for deposit hereunder. Any sums so received for deposit shall be established as a new Deposit and
credited to a new Account, all as more fully provided in Section 2.1 hereof, and thereafter the provisions of this Agreement shall apply thereto as fully and with the same force and effect as if such Deposit had been established on the Deposit
Date except that (i) such Deposit may not be withdrawn prior to the date seven days after the establishment thereof and (ii) such Deposit shall mature on June 30, 2013 and bear interest as provided in Section 2.2. The Depositary
shall promptly give notice to the Escrow Agent of receipt of each such re-deposit and the account number assigned thereto. 

SECTION 3. Termination. This Agreement shall terminate on the fifth Business Day after the later of the date on which (i) all
of the Deposits shall have been withdrawn and paid as provided herein without any re-deposit and (ii) all accrued and unpaid interest on the Deposits shall have been paid as provided herein, but in no event prior to the date on which the
Depositary shall have performed in full its obligations hereunder. 
 SECTION 4. Payments. All payments made by the
Depositary hereunder shall be paid in United States Dollars and immediately available funds by wire transfer (i) in the case of accrued interest on the Deposits payable under Section 2.2 hereof or any Final Withdrawal, directly to the
Paying Agent at Wilmington Trust Company, Wilmington, DE, ABA# 031100092, Account No. 101451-000, Attention: Robert Hines, Telephone No.: (302) 636-6197, Reference: US Airways 2012-1 Paying Agent Account, or to such other account as the
Paying Agent may direct from time to time in writing to the Depositary and the Escrow Agent and (ii) in the case of any withdrawal of one or more Deposits pursuant to a Notice of Purchase Withdrawal or Notice of Replacement Withdrawal, directly
to or as directed by the Pass Through Trustee as specified and in the manner provided in such Notice of Purchase Withdrawal or Notice of Replacement Withdrawal. The Depositary hereby waives any and all rights of set-off, combination of accounts,
right of retention or similar right (whether arising under applicable law, contract or otherwise) it may have against the Deposits howsoever arising. To the extent permitted by applicable law, all payments on or in respect of each Deposit shall be
made free and clear of and without reduction for or on account of any and all taxes, levies or other impositions or charges (collectively, “Taxes”). However, if the Depositary (or if the Paying Agent shall have notified the
Depositary that the Paying Agent (pursuant to Section 2.04 of the Escrow and Paying Agent Agreement)) shall be required by law to deduct or withhold any Taxes from or in respect of any sum payable hereunder, the Depositary shall (i) make,
or cause to be made, such deductions or withholding and (ii) pay, or cause to be paid, the full amount deducted or withheld (including in respect of such additional amounts) to the competent taxation authority and (iii) if the Taxes
required to be deducted or withheld are imposed by France or any political subdivision thereof (other than pursuant to any inter-governmental agreement with the United States pursuant to FATCA or under implementing legislation or administrative
rules thereunder), pay such additional amounts as may be necessary in order that the actual amount received by the designated recipient of such sum under this Agreement or the Escrow and Paying Agent Agreement after such deduction or withholding
equals the sum it would have received had no such deduction or withholding been required. If the date on which any payment due on any Deposit would otherwise fall on a day which is not a Business Day, such payment shall be made on the next
succeeding Business Day, and no additional interest shall accrue in respect of such 

  
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extension. For purposes of this Section 4, “FATCA” means Sections 1471 through 1474 of the Code, as of the date of this Agreement (or any amended or successor version that
is substantively comparable and not materially more onerous to comply with) and any current or future regulations or official interpretations thereof. 
 SECTION 5. Representation and Warranties. The Depositary hereby represents and warrants to US Airways, the Escrow Agent, the Pass Through Trustee and the Paying Agent that: 

(a) it is a société anonyme duly organized and validly existing in good standing under the laws of
France and is duly licensed to conduct banking business in the State of New York; 
 (b) it has full power,
authority and legal right to conduct its business and operations as currently conducted and to enter into and perform its obligations under this Agreement; 
 (c) the execution, delivery and performance of this Agreement have been duly authorized by all necessary corporate action on the part of it and do not require any stockholder approval, or approval or
consent of any trustee or holder of any indebtedness or obligations of it, and this Agreement has been duly executed and delivered by it and constitutes its legal, valid and binding obligations enforceable against it in accordance with the terms
hereof; 
 (d) no authorization, consent or approval of or other action by, and no notice to or filing with, any
United States federal or state governmental authority or regulatory body is required for the execution, delivery or performance by it of this Agreement; 
 (e) neither the execution, delivery or performance by it of this Agreement, nor compliance with the terms and provisions hereof, conflicts or will conflict with or results or will result in a breach or
violation of any of the terms, conditions or provisions of, or will require any consent or approval under, any law, governmental rule or regulation or the charter documents, as amended, or bylaws, as amended, of it or any similar instrument binding
on it or any order, writ, injunction or decree of any court or governmental authority against it or by which it or any of its properties is bound or of any indenture, mortgage or contract or other agreement or instrument to which it is a party or by
which it or any of its properties is bound, or constitutes or will constitute a default thereunder or results or will result in the imposition of any lien upon any of its properties; and 

(f) there are no pending or, to its knowledge, threatened actions, suits, investigations or proceedings (whether or not
purportedly on behalf of it) against or affecting it or any of its property before or by any court or administrative agency which, if adversely determined, (i) would adversely affect the ability of it to perform its obligations under this
Agreement or (ii) would call into question or challenge the validity of this Agreement or the enforceability hereof in accordance with the terms hereof, nor is 

  
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the Depositary in default with respect to any order of any court, governmental authority, arbitration board or administrative agency so as to adversely affect its ability to perform its
obligations under this Agreement. 
 SECTION 6. Transfer. Neither party hereto shall be entitled to assign or otherwise
transfer this Agreement (or any interest herein) other than (in the case of the Escrow Agent) to a successor escrow agent under the Escrow and Paying Agent Agreement and other than (in the case of the Depositary) to any entity into which the
Depositary shall merge or with which it shall be consolidated, and any purported assignment in violation thereof shall be void. This Agreement shall be binding upon the parties hereto and their respective successors and (in the case of the Escrow
Agent) permitted assigns. Upon the occurrence of the Transfer (as defined below) contemplated by the Assignment and Assumption Agreement (as defined below), the Pass Through Trustee shall (without further act) be deemed to have transferred all of
its right, title and interest in and to this Agreement to the trustee of the Successor Trust (as defined below) and, thereafter, the trustee of the Successor Trust shall be deemed to be the “Pass Through Trustee” hereunder with the rights
of the “Pass Through Trustee” hereunder, and each reference herein to “US Airways Pass Through Trust 2012-1C-O” shall be deemed to be a reference to “US Airways Pass Through Trust 2012-1C-S”. The Escrow Agent and the
Depositary hereby acknowledge and consent to the Transfer contemplated by the Assignment and Assumption Agreement. For the purposes of this Section 6, “Transfer” means the transfer contemplated by the Assignment and Assumption
Agreement; “Assignment and Assumption Agreement” means the Assignment and Assumption Agreement to be entered into between the Pass Through Trustee and the trustee of the Successor Trust, substantially in the form of Exhibit C to the
Trust Supplement; and “Successor Trust” means the US Airways Pass Through Trust 2012-1C-S. 
 SECTION 7.
Amendment, Etc. This Agreement may not be amended, waived or otherwise modified except by an instrument in writing signed by the party against whom the amendment, waiver or other modification is sought to be enforced and by the Pass Through
Trustee. 
 SECTION 8. Notices. Unless otherwise expressly provided herein, any notice or other communication under this
Agreement shall be in writing (including by facsimile) and shall be deemed to be given and effective upon receipt thereof. All notices shall be sent to (x) in the case of the Depositary, Natixis S.A., New York Branch, 9 West 57th Street, 35th
Floor, New York, NY 10019, Attention: Lily Cheung (Telecopier: (212) 891-1900, Email cc: USCIBUSAir20121Report@us.natixis.com) at the foregoing address or (y) in the case of the Escrow Agent, Wells Fargo Bank Northwest, National
Association, 260 North Charles Lindbergh Drive, Salt Lake City, UT 84116, Attention: Corporate Trust Services (Telecopier: (801) 246-7142), in each case, with a copy to the Pass Through Trustee, Wilmington Trust Company, 1100 North Market
Street, Wilmington, DE 19890-1605, Attention: Corporate Capital Market Services (Telecopier: (302) 636-4140) and to US Airways, Inc., 111 West Rio Salado Parkway, Tempe, Arizona 85281, Attention: Vice President and Treasurer (Telecopier:
(480) 693-5886) with a copy to: Deputy General Counsel (Telecopier: (480) 693-5932) (or at such other address as any such party may specify from time to time in a written notice to the parties hereto). On or prior to the execution of this
Agreement, the Escrow Agent has delivered to the Depositary a certificate containing specimen signatures of the representatives of the Escrow 

  
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Agent who are authorized to give notices and instructions with respect to this Agreement. The Depositary may conclusively rely on such certificate until the Depositary receives written notice
from the Escrow Agent to the contrary. 
 The Depositary shall have the right, but shall not be required, to rely upon and
comply with instructions and directions sent by e-mail by persons believed by the Depositary to be authorized to give instructions and directions on behalf of the Escrow Agent. The Depositary shall have no duty or obligation to verify or confirm
that the person who sent such instructions or directions is, in fact, a person authorized to give instructions or directions on behalf of the Escrow Agent; and the Depositary shall have no liability for any losses, liabilities, costs or expenses
incurred or sustained by the Escrow Agent as a result of such reliance upon or compliance with such instructions or directions. The Escrow Agent agrees to assume all risks arising out of the use of e-mail to submit instructions and directions to the
Depositary, including without limitation the risk of the Depositary acting on unauthorized instructions, and the risk of interception and misuse by third parties. 
 SECTION 9. Obligations Unconditional. The Depositary hereby acknowledges and agrees that its obligation to repay each Deposit together with interest thereon as provided herein is absolute,
irrevocable and unconditional and constitutes a full recourse obligation of the Depositary enforceable against it to the full extent of all of its assets and properties. 
 SECTION 10. Entire Agreement. This Agreement (including all attachments hereto) sets forth all of the promises, covenants, agreements, conditions and understandings between the Depositary and the
Escrow Agent with respect to the subject matter hereof and supersedes all prior and contemporaneous agreements and undertakings, inducements or conditions, express or implied, oral or written. 

SECTION 11. Governing Law. This Agreement, and the rights and obligations of the Depositary and the Escrow Agent with respect to
the Deposits, shall be governed by, and construed in accordance with, the law of the State of New York and subject to the provisions of Regulation D of the Board of Governors of the Federal Reserve System (or any successor), as the same may be
modified and supplemented and in effect from time to time. 
 SECTION 12. Submission to Non-Exclusive Jurisdiction in New
York. Each of the parties hereto, to the extent it may do so under applicable law, hereby (a) irrevocably submits itself to the non-exclusive jurisdiction of the courts of the State of New York sitting in the City of New York and to the
non-exclusive jurisdiction of the United States District Court for the Southern District of New York, for the purposes of any suit, action or other proceeding arising out of this Agreement, the subject matter hereof or any of the transactions
contemplated hereby brought by any party or parties hereto, or their successors or permitted assigns and (b) waives, and agrees not to assert, by way of motion, as a defense, or otherwise, in any such suit, action or proceeding, that the suit,
action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper or that this Agreement or the subject matter hereof or any of the transactions contemplated hereby may not be enforced in or by
such courts. 

  
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 SECTION 13. Waiver of Jury Trial Right. EACH OF THE DEPOSITARY AND THE ESCROW AGENT
ACKNOWLEDGES AND ACCEPTS THAT IN ANY SUIT, ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT SUCH PARTY IRREVOCABLY WAIVES ITS RIGHT TO A TRIAL BY JURY. 
 SECTION 14. Counterparts. This Agreement may be executed in one or more counterparts, all of which taken together shall constitute one instrument. 

SECTION 15. Rights of Receiptholders. The Depositary acknowledges that, if the Depositary shall fail to pay when due hereunder any
interest on the Deposits or the Final Withdrawal, the “Receiptholders” (as defined in the Escrow and Paying Agent Agreement) shall have the right to claim directly against the Depositary and that any such claim shall not be subject to
defenses that the Depositary may have against the Escrow Agent. 
 SECTION 16. Limitation on Damages. In no event shall
the Depositary be responsible or liable for special, indirect, punitive, or consequential loss or damage of any kind whatsoever (including, but not limited to, loss of profit, whether or not foreseeable) suffered by Escrow Agent or any of the
Receiptholders (as defined in the Escrow and Paying Agent Agreement) in connection with this Agreement or the transaction contemplated or any relationships established by this Agreement irrespective of whether the Depositary has been advised of the
likelihood of such loss or damage and regardless of the form of action. In the event of any conflict or inconsistency between any provision in this Agreement and a provision in any other document, the provisions of this Agreement shall control.

 SECTION 17. Miscellaneous. (a) The Depositary shall have only those duties as are specifically and expressly provided
herein and no other duties shall be implied. The Depositary may rely upon and shall not be liable for acting or refraining from acting upon any written notice, document, instruction or request furnished to it hereunder and believed by it to be
genuine and to have been signed or presented by the Escrow Agent without inquiry and without requiring substantiating evidence of any kind. The Depositary shall be under no duty to inquire into or investigate the validity, accuracy or content of any
such document, notice, instruction or request. The Depositary shall have no duty to solicit any payments, including, without limitation, the Deposits. 
 (b) The Depositary shall not be liable for any action taken, suffered or omitted to be taken by it in good faith except to the extent that a final adjudication of a court of competent jurisdiction
determines that the Depositary’s gross negligence or willful misconduct was the primary cause of any loss. The Depositary may execute any of its powers and perform any of its duties hereunder directly or through attorneys, and shall be liable
only for its gross negligence or willful misconduct (as finally adjudicated in a court of competent jurisdiction) in the selection of any such attorney. The Depositary may consult with counsel, accountants and other skilled persons to be selected
and retained by it. The Depositary shall not be liable for any action taken, suffered or omitted to be taken by it in accordance with, or in reliance upon, the advice or opinion of any such counsel, accountants or other skilled persons. In the event
that the Depositary shall be uncertain or believe there is some ambiguity as to its duties or rights hereunder or shall receive instructions, claims or demands from any party hereto which, in its opinion, conflict with any of the provisions of this
Agreement, it shall be entitled to refrain from 

  
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taking any action and its sole obligation shall be to keep safely all property held hereunder until it shall be given a direction in writing by the Escrow Agent which eliminates such ambiguity or
uncertainty to the satisfaction of Depositary or by a final and non-appealable order or judgment of a court of competent jurisdiction. 
 (c) (i) Section 326 of the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (“USA PATRIOT Act”) requires the
Depositary to implement reasonable procedures to verify the identity of any person that opens a new account with it. Accordingly, the Escrow Agent acknowledges that Section 326 of the USA PATRIOT Act and the Depositary’s identity
verification procedures require the Depositary to obtain information which may be used to confirm the Escrow Agent’s identity including without limitation name, address and organizational documents (“identifying information”).
The Escrow Agent agrees to provide the Depositary with and consent to the Depositary obtaining from third parties any such identifying information required as a condition of opening an account with or using any service provided by the Depositary.

 (ii) Depositary agrees that upon the reasonable request of the Escrow Agent, it will provide to the Escrow Agent such
information and documents as the Escrow Agent may require (x) to satisfy applicable anti-money laundering laws and regulations, including the USA PATRIOT Act, the regulations administered by the U.S. Department of Treasury’s Office of
Foreign Assets Control (“OFAC”), and other applicable U.S. anti-money laundering laws and regulations (collectively, the “anti-money laundering/OFAC laws”), or (y) to meet the requirements of the Escrow
Agent’s internal know your customer policies and procedures adopted in accordance with the anti-money laundering/OFAC laws. 
 (d) The Escrow Agent has provided the Depositary with its fully executed Internal Revenue Service (“IRS”) Form W-9. The Escrow Agent represents that its correct TIN assigned by the IRS,
or any other taxing authority, is set forth in the delivered form. Any United States federal, state or local income or franchise tax returns required to be filed will, to the greatest extent permitted by applicable law, be prepared and filed by the
Escrow Agent with the IRS and any other taxing authority as required by law. The Escrow Agent acknowledges and agrees that the Depositary shall have no responsibility for the preparation and/or filing of any United States federal, state or local
income, franchise or other tax return with respect to the Deposits or any income earned by the Deposits other than any such responsibility that cannot be assigned to, or assumed by the Escrow Agent under applicable law. 

(e) No party to this Agreement is liable to any other party for losses due to, or if it is unable to perform its obligations under the
terms of this Agreement because of, acts of God, fire, war, terrorism, floods, strikes, electrical outages, equipment or transmission failure, or other causes reasonably beyond its control. If any provision of this Agreement is determined to be
prohibited or unenforceable by reason of any applicable law of a jurisdiction, then such provision shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions
thereof, and any such prohibition or unenforceability in such jurisdiction shall not invalidate or render unenforceable such provisions in any other jurisdiction. 

  
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 SECTION 18. Security Procedures. With respect to all funds transfer instructions that
are given pursuant to this Agreement (other than in writing at the time of execution of this Agreement), whether in writing, by facsimile or otherwise, the Depositary is authorized to seek confirmation of such instructions by telephone call-back to
the person or persons designated on Schedule II hereto (“Schedule II”), and the Depositary may rely upon the confirmation of anyone purporting to be the person or persons so designated. Each funds transfer instruction shall be executed by
an authorized signatory, a list of such authorized signatories is set forth on Schedule II. The persons and telephone numbers for call-backs may be changed only in a writing actually received and acknowledged by the Depositary. If the Depositary is
unable to contact any of the authorized representatives identified in Schedule II, the Depositary is hereby authorized to seek confirmation of such instructions by telephone call-back to any one or more of Escrow Agent’s executive officers
(“Executive Officers”), as the case may be, which shall include the titles of Assistant Vice President or Vice President, as the Depositary may select. Such “Executive Officer” shall deliver to the Depositary a fully executed
incumbency certificate, and the Depositary may rely upon the confirmation of anyone purporting to be any such officer. The Depositary and the beneficiary’s bank in any funds transfer may rely solely upon any account numbers or similar
identifying numbers provided by the Escrow Agent to identify (a) the beneficiary, (b) the beneficiary’s bank, or (c) an intermediary bank. The Depositary may apply any of the funds for any payment order it executes using any such
identifying number, even when its use may result in a person other than the beneficiary being paid, or the transfer of funds to a bank other than the beneficiary’s bank or an intermediary bank designated. The Escrow Agent acknowledges that
these security procedures are commercially reasonable. 
 SECTION 19. Head Office Obligations. The Depositary is Natixis
S.A., a French bank (“Natixis”), acting through its New York Branch. The Depositary hereby agrees that, notwithstanding the place of booking or its jurisdiction of incorporation or organization, the obligations of the Depositary
hereunder are also the obligations of the head office of Natixis in Paris, France (the “Head Office”). Accordingly, any beneficiary of this Agreement will be able to proceed directly against the Head Office, if the Depositary
defaults in its obligations to such beneficiary under this Agreement. 
 SECTION 20. Waiver of Immunity. To the extent
that the Depositary or any of its properties has or may hereafter acquire any right of immunity, whether characterized as sovereign immunity or otherwise, and whether under the United States Foreign Sovereign Immunities Act of 1976 (or any successor
legislation) or otherwise, from any legal proceedings, whether in the United States or elsewhere, to enforce or collect upon this Agreement, including, without limitation, immunity from suit or service of process, immunity from jurisdiction or
judgment of any court or tribunal or execution of a judgment, or immunity of any of its property from attachment prior to any entry of judgment, or from attachment in aid of execution upon a judgment, the Depositary hereby irrevocably and expressly
waives any such immunity, and agrees not to assert any such right or claim in any such proceeding, whether in the United States or elsewhere. 

  
 -10-

 IN WITNESS WHEREOF, the Escrow Agent and the Depositary have caused this Deposit Agreement
to be duly executed as of the day and year first above written. 
  

			
	 WELLS FARGO BANK NORTHWEST,

NATIONAL ASSOCIATION,
as Escrow Agent

		
	By	 	 /s/ Scott Rosevear

		 	Name: Scott Rosevear
		 	Title: Vice President
	
	 NATIXIS S.A., ACTING THROUGH ITS
NEW YORK BRANCH,
as Depositary

		
	By	 	 /s/ Louis Douady

		 	Name: Louis Douady
		 	Title: Managing Director
		
	By	 	 /s/ Lily Cheung

		 	Name: Lily Cheung
		 	Title: Director

 Schedule I 
 Schedule of Deposits 
 Class C 

 

									
	 Aircraft Type
	  	 Expected Delivery

Month
	  	Deposit Amount	 	  	Sub-Account No.
				
	 Airbus A321-231
	  	October 2009	  	$	7,340,000.00	  	  	855001CD
	 Airbus A321-231
	  	December 2009	  	$	7,374,000.00	  	  	855002CD
	 Airbus A321-231
	  	September 2012	  	$	8,621,000.00	  	  	855003CD
	 Airbus A321-231
	  	September 2012	  	$	8,621,000.00	  	  	855004CD
	 Airbus A321-231
	  	October 2012	  	$	8,635,000.00	  	  	855005CD
	 Airbus A321-231
	  	October 2012	  	$	8,635,000.00	  	  	855006CD
	 Airbus A321-231
	  	November 2012	  	$	8,650,000.00	  	  	855007CD
	 Airbus A321-231
	  	November 2012	  	$	8,650,000.00	  	  	855008CD
	 Airbus A321-231
	  	December 2012	  	$	8,663,000.00	  	  	855009CD
	 Airbus A321-231
	  	December 2012	  	$	8,663,000.00	  	  	855010CD
	 Airbus A321-211
	  	January 2013	  	$	8,678,000.00	  	  	855011CD
	 Airbus A321-211
	  	February 2013	  	$	8,692,000.00	  	  	855012CD
	 Airbus A321-211
	  	March 2013	  	$	8,707,000.00	  	  	855013CD
	 Airbus A321-211
	  	March 2013	  	$	8,707,000.00	  	  	855014CD

 Schedule II 
 Telephone Number(s) and authorized signature(s) for 
 Person(s) Designated to give Funds
Transfer Instructions 
 Escrow Agent: 
  

							
	  	 	 Name
	  	Telephone Number	  	 Signature

				
	 1.      
	 	Scott Rosevear	  	(801) 246-6427	  	
				
	 2.      
	 	Jon Croasmun	  	(801) 246-7050	  	
				
	 3.      
	 	David Wall	  	(801) 246-6500	  	

 Telephone Number(s) for Call-Backs and 
 Person(s) Designated to Confirm Funds Transfer Instructions 
 Escrow Agent:

  

					
	  	 	 Name
	  	Telephone Number
			
	 1.      
	 	Megan C. Giamalakis	  	(801) 246-6505
			
	 2.      
	 	Crystal Verley	  	(801) 246-6089
			
	 3.      
	 	Dillon Butler	  	(801) 246-6504

 All funds transfer instructions must include the signature of the person(s) authorizing said funds transfer and must not
be the same person confirming said transfer. 

 EXHIBIT A 
 NOTICE OF PURCHASE WITHDRAWAL 
 Natixis S.A., acting through its New York Branch 

9 West
57th Street, 35th Floor 
 New York, New York 10019 
 Attention: Lily Cheung 

Reference: US Airways 2012-1 
 Telecopier:
(212) 891-1900 
 Cc: USCIBUSAIR20121Reports@us.natixis.com 
 Gentlemen: 
 Reference is made to the Deposit Agreement (Class C) dated as of
May 14, 2012 (the “Deposit Agreement”) between Wells Fargo Bank Northwest, National Association, as Escrow Agent, and Natixis S.A., acting through its New York Branch, as Depositary (the “Depositary”).

 In accordance with Section 2.3(a) of the Deposit Agreement, the undersigned hereby requests the withdrawal of the entire
amount of the Deposit, $[            ], Account No.                     . 

The undersigned hereby directs the Depositary to pay the entire amount of the Deposit to
                    , Account No.             , Reference:
                 on                  , 20    , upon the telephonic
request of a representative of the Pass Through Trustee. 
  

			
	 WELLS FARGO BANK NORTHWEST,
NATIONAL ASSOCIATION,
as Escrow Agent

		
	By	 	  

		 	Name:
		 	Title:

 Dated:                  ,
20     

 EXHIBIT B 
 NOTICE OF FINAL WITHDRAWAL 
 Natixis S.A., acting through its New York Branch 

9 West
57th Street, 35th Floor 
 New York, New York 10019 
 Attention: Lily Cheung 

Reference: US Airways 2012-1 
 Telecopier:
(212) 891-1900 
 Cc: USCIBUSAIR20121Reports@us.natixis.com 
 Gentlemen: 
 Reference is made to the Deposit Agreement (Class C) dated as of
May 14, 2012 (the “Deposit Agreement”) between Wells Fargo Bank Northwest, National Association, as Escrow Agent, and Natixis S.A., acting through its New York Branch, as Depositary (the “Depositary”).

 In accordance with Section 2.3(b)(i) of the Deposit Agreement, the undersigned hereby requests the withdrawal of the
entire amount of all Deposits. 
 The undersigned hereby directs the Depositary to pay the entire amount of the Deposits and
accrued interest thereon to the Paying Agent at Wilmington Trust Company, ABA# 031100092, Account No.                     , Reference: US Airways
2012-1. 
  

			
	 WELLS FARGO BANK NORTHWEST,
NATIONAL ASSOCIATION,
as Escrow Agent

		
	By	 	  

		 	Name:
		 	Title:

 Dated:             , 20    

 EXHIBIT C 
 NOTICE OF REPLACEMENT WITHDRAWAL 
 Natixis S.A., acting through its New York Branch 

9 West
57th Street, 35th Floor 
 New York, New York 10019 
 Attention: Lily Cheung 

Reference: US Airways 2012-1 
 Telecopier:
(212) 891-1900 
 Cc: USCIBUSAIR20121Reports@us.natixis.com 
 Gentlemen: 
 Reference is made to the Deposit Agreement (Class C) dated as of
May 14, 2012 (the “Deposit Agreement”) between Wells Fargo Bank Northwest, National Association, as Escrow Agent, and Natixis S.A., acting through its New York Branch, as Depositary (the “Depositary”).

 In accordance with Section 2.3(b)(ii) of the Deposit Agreement, the undersigned hereby requests the withdrawal of the
entire amount of all Deposits. 
 The undersigned hereby directs the Depositary to pay the entire amount of the Deposits and
accrued interest thereon to [                    ], Reference: US Airways 2012-1. 

 

			
	 WELLS FARGO BANK NORTHWEST,
NATIONAL ASSOCIATION,
as Escrow Agent

		
	By	 	  

		 	Name:
		 	Title:

 Dated:             , 20Escrow and Paying Agent Agreement (Class A)

 Exhibit 4.14 
 EXECUTION VERSION 
 ESCROW AND PAYING AGENT AGREEMENT 

(Class A) 
 Dated
as of May 14, 2012 
 among 
 WELLS FARGO BANK NORTHWEST, NATIONAL ASSOCIATION, 
 as Escrow Agent 

MORGAN STANLEY & CO. LLC, 
 CITIGROUP GLOBAL MARKETS INC. 
 and 

GOLDMAN, SACHS & CO. 
 as representatives of the several Underwriters 
 WILMINGTON TRUST COMPANY,

 not in its individual capacity, 
 but solely as Pass Through Trustee 
 for and on behalf of 

US Airways Pass Through Trust 2012-1A-O 
 and 
 WILMINGTON TRUST COMPANY, 

as Paying Agent 

 TABLE OF CONTENTS 

 

									
	SECTION 1.	  	Escrow Agent.	  	 	2	  
				
		 	Section 1.01.	  	Appointment of Escrow Agent.	  	 	2	  
		 	Section 1.02.	  	Instruction; Etc.	  	 	3	  
		 	Section 1.03.	  	Initial Escrow Amount; Issuance of Escrow Receipts.	  	 	4	  
		 	Section 1.04.	  	Payments to Receiptholders.	  	 	4	  
		 	Section 1.05.	  	Mutilated, Destroyed, Lost or Stolen Escrow Receipt.	  	 	4	  
		 	Section 1.06.	  	Additional Escrow Amounts.	  	 	5	  
		 	Section 1.07.	  	Resignation or Removal of Escrow Agent.	  	 	5	  
		 	Section 1.08.	  	Persons Deemed Owners.	  	 	6	  
		 	Section 1.09.	  	Further Assurances.	  	 	6	  
			
	SECTION 2.	  	Paying Agent.	  	 	6	  
				
		 	Section 2.01.	  	Appointment of Paying Agent.	  	 	6	  
		 	Section 2.02.	  	Establishment of Paying Agent Account.	  	 	6	  
		 	Section 2.03.	  	Payments from Paying Agent Account.	  	 	6	  
		 	Section 2.04.	  	Withholding Taxes.	  	 	8	  
		 	Section 2.05.	  	Resignation or Removal of Paying Agent.	  	 	8	  
		 	Section 2.06.	  	Notice of Final Withdrawal.	  	 	8	  
			
	SECTION 3.	  	Payments.	  	 	9	  
			
	SECTION 4.	  	Other Actions.	  	 	9	  
			
	SECTION 5.	  	Representations and Warranties of the Escrow Agent.	  	 	9	  
			
	SECTION 6.	  	Representations and Warranties of the Paying Agent.	  	 	10	  
			
	SECTION 7.	  	Indemnification.	  	 	11	  
			
	SECTION 8.	  	Amendment, Etc.	  	 	12	  
			
	SECTION 9.	  	Notices.	  	 	12	  
			
	SECTION 10.	  	Transfer.	  	 	13	  
			
	SECTION 11.	  	Entire Agreement.	  	 	13	  
			
	SECTION 12.	  	Governing Law.	  	 	13	  
			
	SECTION 13.	  	Waiver of Jury Trial Right.	  	 	13	  
			
	SECTION 14.	  	Counterparts.	  	 	13	  
			
	SECTION 15.	  	Rights of Holders.	  	 	13	  
			
	Exhibit A	  	Escrow Receipt	  			
			
	Exhibit B	  	Withdrawal Certificate	  			

 ESCROW AND PAYING AGENT AGREEMENT (Class A) dated as of May 14, 2012, (as amended, modified or
supplemented from time to time, this “Agreement”) among WELLS FARGO BANK NORTHWEST, NATIONAL ASSOCIATION, a national banking association, as Escrow Agent (in such capacity, together with its successors in such capacity, the
“Escrow Agent”); MORGAN STANLEY & CO. LLC, CITIGROUP GLOBAL MARKETS INC. and GOLDMAN, SACHS & CO. as representatives of the several Underwriters of the Certificates referred to below (the
“Underwriters” and together with their respective transferees and assigns as registered owners of the Certificates, the “Investors”) under the Underwriting Agreement referred to below; WILMINGTON TRUST COMPANY, not
in its individual capacity except as otherwise expressly provided herein, but solely as trustee (in such capacity, together with its successors in such capacity, the “Pass Through Trustee”) under the Pass Through Trust Agreement
referred to below; and WILMINGTON TRUST COMPANY, as paying agent hereunder (in such capacity, together with its successors in such capacity, the “Paying Agent”). 

W I T N E S S E T H 

WHEREAS, US Airways, Inc. (“US Airways”) and the Pass Through Trustee have entered into a Trust Supplement, dated as of
May 14, 2012 (the “Trust Supplement”), to the Pass Through Trust Agreement, dated as of December 21, 2010 (together, as amended, modified or supplemented from time to time in accordance with the terms thereof, the
“Pass Through Trust Agreement”) relating to US Airways Pass Through Trust 2012-1A-O (the “Pass Through Trust”) pursuant to which the US Airways Pass Through Trust, Series 2012-1A-O Certificates referred to therein
(the “Certificates”) are being issued (the date of such issuance, the “Issuance Date”); 

WHEREAS, US Airways and the Underwriters have entered into an Underwriting Agreement dated as of April 30, 2012 (as amended,
modified or supplemented from time to time in accordance with the terms thereof, the “Underwriting Agreement”) pursuant to which the Pass Through Trustee will issue and sell the Certificates to the Underwriters; 

WHEREAS, US Airways, the Pass Through Trustee, two other pass through trustees and certain other persons concurrently herewith are
entering into the Note Purchase Agreement, dated as of the date hereof (the “Note Purchase Agreement”), pursuant to which the Pass Through Trustee has agreed to acquire from time to time on or prior to the Delivery Period
Termination Date (as defined in the Note Purchase Agreement) equipment notes (the “Equipment Notes”) issued to finance certain aircraft currently owned by US Airways and certain other aircraft to be acquired by US Airways, as owner,
utilizing a portion of the proceeds from the sale of the Certificates (the “Net Proceeds”); 
 WHEREAS, the
Underwriters and the Pass Through Trustee intend to create an escrow and that the Net Proceeds be held in escrow by the Escrow Agent on behalf of the Investors, subject to withdrawal upon request by the Pass Through Trustee and satisfaction of the
conditions set forth in the Note Purchase Agreement for the purpose of purchasing Equipment Notes, and that pending such withdrawal the Net Proceeds be deposited on behalf of the Escrow Agent with Natixis S.A., acting through its New York Branch, as
Depositary (the “Depositary”, which shall also be deemed to refer to any Replacement Depositary (as defined in the Note Purchase Agreement) from and after the date on which the Deposits are transferred to such Replacement
Depositary) under the Deposit Agreement, dated as of the date hereof between the 

 
Depositary and the Escrow Agent relating to the Pass Through Trust (as amended, modified, supplemented or replaced from time to time in accordance with the terms thereof, the “Deposit
Agreement”, which shall also be deemed to refer to any Replacement Deposit Agreement (as defined in the Note Purchase Agreement) to which the Escrow Agent becomes a party pursuant to Section 1.02(a) hereof from and after the transfer
of the Deposits from the Depositary to the Replacement Depositary) pursuant to which, among other things, the Depositary will pay interest for distribution to the Investors and establish accounts from which the Escrow Agent shall make withdrawals
upon request of and proper certification by the Pass Through Trustee; 
 WHEREAS, the Escrow Agent wishes to appoint the Paying
Agent to pay amounts required to be distributed to the Investors in accordance with this Agreement; and 
 WHEREAS, capitalized
terms used but not defined herein shall have the meanings ascribed to such terms in the Pass Through Trust Agreement. 
 NOW,
THEREFORE, in consideration of the obligations contained herein, and for other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties hereto hereby agree as follows: 

SECTION 1. Escrow Agent. 
 Section 1.01. Appointment of Escrow Agent. Each of the Underwriters, for and on behalf of each of the Investors, hereby irrevocably appoints, authorizes and directs the Escrow Agent to act as
escrow agent and fiduciary hereunder and under the Deposit Agreement for such specific purposes and with such powers as are specifically delegated to the Escrow Agent by the terms of this Agreement, together with such other powers as are reasonably
incidental thereto. Any and all money received and held by the Escrow Agent under this Agreement or the Deposit Agreement shall be held in escrow by the Escrow Agent in accordance with the terms of this Agreement. This Agreement is irrevocable and
the Investors’ and the Pass Through Trustee’s rights with respect to any monies received and held in escrow by the Escrow Agent under this Agreement or the Deposit Agreement shall only be as provided under the terms and conditions of this
Agreement and the Deposit Agreement. The Escrow Agent (which term as used in this sentence shall include reference to its affiliates and its own and its affiliates’ officers, directors, employees and agents): (a) shall have no duties or
responsibilities except those expressly set forth in this Agreement; (b) shall not be responsible to the Pass Through Trustee or the Investors for any recitals, statements, representations or warranties of any person other than itself contained
in this Agreement or the Deposit Agreement or for the failure by the Pass Through Trustee, the Investors or any other person or entity (other than the Escrow Agent) to perform any of its obligations hereunder (whether or not the Escrow Agent shall
have any knowledge thereof); and (c) shall not be responsible for any action taken or omitted to be taken by it hereunder or provided for herein or in connection herewith, except for its own willful misconduct or gross negligence (or simple
negligence in connection with the handling of funds). 

  
 2 

 Section 1.02. Instruction; Etc. The Underwriters, for and on behalf of each of
the Investors, hereby irrevocably instruct the Escrow Agent, and the Escrow Agent agrees: 
 (a) to enter into
the Deposit Agreement, and, if requested by the Company pursuant to Section 4(a)(vi) of the Note Purchase Agreement, to enter into a Replacement Deposit Agreement with the Replacement Depositary specified by the Company; 

(b) to appoint the Paying Agent as provided in this Agreement; 

(c) upon receipt at any time and from time to time prior to the Termination Date (as defined below) of a certificate
substantially in the form of Exhibit B hereto (a “Withdrawal Certificate”) executed by the Pass Through Trustee, together with an attached Notice of Purchase Withdrawal in substantially the form of Exhibit A to the Deposit Agreement
duly completed by the Pass Through Trustee (the “Applicable Notice of Purchase Withdrawal” and the withdrawal to which it relates, a “Purchase Withdrawal”), immediately to execute the Applicable Notice of Purchase
Withdrawal as Escrow Agent and transmit it to the Depositary by facsimile transmission in accordance with the Deposit Agreement; provided that, upon the request of the Pass Through Trustee after such transmission, the Escrow Agent shall
cancel such Applicable Notice of Purchase Withdrawal; 
 (d) upon receipt of a Withdrawal Certificate executed by
the Pass Through Trustee, together with an attached Notice of Replacement Withdrawal in substantially the form of Exhibit C to the Deposit Agreement duly completed by the Pass Through Trustee, to: 

(X) give such Notice of Replacement Withdrawal to the Depositary requesting a withdrawal, on the date specified in such
notice, which shall not be less than five Business Days after such notice is given (the “Replacement Withdrawal Date”), of all Deposits then held by the Depositary together with all accrued and unpaid interest on such Deposits to
but excluding the Replacement Withdrawal Date; and 
 (Y) direct the Depositary to transfer such Deposits and
accrued interest on behalf of the Escrow Agent to the Replacement Depositary in accordance with the Replacement Deposit Agreement; and 
 (e) if there are any undrawn Deposits (as defined in the Deposit Agreement) on the “Termination Date”, which shall mean the earlier of (i) June 30, 2013, and (ii) the day
on which the Escrow Agent receives notice from the Pass Through Trustee that the Pass Through Trustee’s obligation to purchase Equipment Notes under the Note Purchase Agreement has terminated, to immediately give notice to the Depositary (with
a copy to the Paying Agent) substantially in the form of Exhibit B to the Deposit Agreement requesting a withdrawal of all of the remaining Deposits, together with accrued and unpaid interest on such Deposits to the date of withdrawal, on the
25th day after the date that such notice of withdrawal is
given to the Depositary (or, if not a Business Day, on the next succeeding Business Day) (a “Final Withdrawal”), provided that if the day scheduled for the Final Withdrawal in accordance with the foregoing is

  
 3 

 
within 10 days before or after a Regular Distribution Date, then the Escrow Agent shall request that such requested Final Withdrawal be made on such Regular Distribution Date (the date of such
requested withdrawal, the “Final Withdrawal Date”). 
 If for any reason the Escrow Agent shall have failed to give the Final
Withdrawal Notice to the Depositary on or before June 10, 2013 and there are unwithdrawn Deposits on such date, the Final Withdrawal Date shall be deemed to be June 30, 2013. 

Section 1.03. Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and
the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars (“Dollars”) and immediately available funds equal to $379,785,000
for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by
executing and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an “Escrow Receipt”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same
percentage interest (the “Escrow Interest”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall
provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow
Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the “Register”) maintained by the Escrow Agent in the name of the same holder that is the holder of the Certificate to which it is attached and may
not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the
Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the “Final Distribution”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through
Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts. 
 Section 1.04.
Payments to Receiptholders. All payments and distributions made to holders of an Escrow Receipt (collectively “Receiptholders”) in respect of the Escrow Receipt shall be made only from amounts deposited in the Paying Agent
Account (as defined below) (“Account Amounts”). Each Receiptholder, by its acceptance of an Escrow Receipt, agrees that (a) it will look solely to the Account Amounts for any payment or distribution due to such Receiptholder
pursuant to the terms of the Escrow Receipt and this Agreement (subject to Section 15 hereof) and (b) it will have no recourse to US Airways, the Pass Through Trustee, the Paying Agent or the Escrow Agent, except as expressly provided
herein or in the Pass Through Trust Agreement. No Receiptholder shall have any right to vote or in any manner otherwise control the operation and management of the Paying Agent Account or the obligations of the parties hereto, nor shall anything set
forth herein, or contained in the terms of the Escrow Receipt, be construed so as to constitute the Receiptholders from time to time as partners or members of an association. 
 Section 1.05. Mutilated, Destroyed, Lost or Stolen Escrow Receipt. If (a) any mutilated Escrow Receipt is surrendered to the Escrow Agent or the Escrow Agent receives

  
 4 

 
evidence to its satisfaction of the destruction, loss or theft of any Escrow Receipt and (b) there is delivered to the Escrow Agent and the Pass Through Trustee such security, indemnity or
bond, as may be required by them to hold each of them harmless, then, absent notice to the Escrow Agent or the Pass Through Trustee that such destroyed, lost or stolen Escrow Receipt has been acquired by a bona fide purchaser, and provided that the
requirements of Section 8-405 of the Uniform Commercial Code in effect in any applicable jurisdiction are met, the Escrow Agent shall execute, authenticate and deliver, in exchange for or in lieu of any such mutilated, destroyed, lost or stolen
Escrow Receipt, a new Escrow Receipt or Escrow Receipts and of like Escrow Interest in the Account Amounts and bearing a number not contemporaneously outstanding. 
 In connection with the issuance of any new Escrow Receipt under this Section 1.05, the Escrow Agent may require the payment of a sum sufficient to cover any tax or other governmental charge that may
be imposed in relation thereto and any other expenses (including the fees and expenses of the Pass Through Trustee and the Escrow Agent) connected therewith. 
 Any duplicate Escrow Receipt issued pursuant to this Section 1.05 shall constitute conclusive evidence of the appropriate Escrow Interest in the Account Amounts, as if originally issued, whether or
not the lost, stolen or destroyed Escrow Receipt shall be found at any time. 
 The provisions of this Section are exclusive and
shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost or stolen Escrow Receipts. 
 Section 1.06. Additional Escrow Amounts. On the date of any Purchase Withdrawal, the Pass Through Trustee may re-deposit with the Depositary some or all of the amounts so withdrawn in
accordance with Section 2.4 of the Deposit Agreement. 
 Section 1.07. Resignation or Removal of Escrow Agent.
Subject to the appointment and acceptance of a successor Escrow Agent as provided below, the Escrow Agent may resign at any time by giving 30 days’ prior written notice thereof to the Investors, but may not otherwise be removed except for cause
by the written consent of the Investors with respect to Investors representing Escrow Interests aggregating not less than a majority in interest in the Account Amounts (an “Action of Investors”). Upon any such resignation or
removal, the Investors, by an Action of Investors, shall have the right to appoint a successor Escrow Agent. If no successor Escrow Agent shall have been so appointed and shall have accepted such appointment within 30 days after the retiring Escrow
Agent’s giving of notice of resignation or the removal of the retiring Escrow Agent, then the retiring Escrow Agent may appoint a successor Escrow Agent. Any successor Escrow Agent shall be a bank or trust company which has an office in the
United States with a combined capital and surplus of at least $100,000,000. Upon the acceptance of any appointment as Escrow Agent hereunder by a successor Escrow Agent, such successor Escrow Agent shall enter into such documents as the Pass Through
Trustee shall require and shall thereupon succeed to and become vested with all the rights, powers, privileges and duties of the retiring Escrow Agent, and the retiring Escrow Agent shall be discharged from its duties and obligations hereunder. No
resignation or removal of the Escrow Agent shall be effective unless a written confirmation shall have been obtained from each of Fitch Ratings Ltd., Moody’s Investors Service, Inc. and Standard & Poor’s Ratings Services, a
Standard & Poor’s Financial Services LLC business, that the replacement of the 

  
 5 

 
Escrow Agent with the successor Escrow Agent will not result in (a) a reduction of the rating for the Certificates below the then current rating for the Certificates or (b) a withdrawal
or suspension of the rating of the Certificates. 
 Section 1.08. Persons Deemed Owners. Prior to due presentment of
a Certificate for registration of transfer, the Escrow Agent and the Paying Agent may treat the Person in whose name any Escrow Receipt is registered (as of the day of determination) as the owner of such Escrow Receipt for the purpose of receiving
distributions pursuant to this Agreement and for all other purposes whatsoever, and neither the Escrow Agent nor the Paying Agent shall be affected by any notice to the contrary. 

Section 1.09. Further Assurances. The Escrow Agent agrees to take such actions, and execute such other documents, as may be
reasonably requested by the Pass Through Trustee in order to effectuate the purposes of this Agreement and the performance by the Escrow Agent of its obligations hereunder. 
 SECTION 2. Paying Agent. 
 Section 2.01. Appointment of Paying
Agent. The Escrow Agent hereby irrevocably appoints and authorizes the Paying Agent to act as its paying agent hereunder, for the benefit of the Investors, for such specific purposes and with such powers as are specifically delegated to the
Paying Agent by the terms of this Agreement, together with such other powers as are reasonably incidental thereto. Any and all money received and held by the Paying Agent under this Agreement or the Deposit Agreement shall be held in the Paying
Agent Account for the benefit of the Investors. The Paying Agent (which term as used in this sentence shall include reference to its affiliates and its own and its affiliates’ officers, directors, employees and agents): (a) shall have no
duties or responsibilities except those expressly set forth in this Agreement, and shall not by reason of this Agreement be a trustee for the Escrow Agent; (b) shall not be responsible to the Escrow Agent for any recitals, statements,
representations or warranties of any person other than itself contained in this Agreement or for the failure by the Escrow Agent or any other person or entity (other than the Paying Agent) to perform any of its obligations hereunder (whether or not
the Paying Agent shall have any knowledge thereof); and (c) shall not be responsible for any action taken or omitted to be taken by it hereunder or provided for herein or in connection herewith, except for its own willful misconduct or gross
negligence (or simple negligence in connection with the handling of funds). 
 Section 2.02. Establishment of Paying
Agent Account. The Paying Agent shall establish a deposit account (the “Paying Agent Account”) at Wilmington Trust Company in the name of the Escrow Agent. It is expressly understood by the parties hereto that the Paying Agent
is acting as the paying agent of the Escrow Agent hereunder and that no amounts on deposit in the Paying Agent Account constitute part of the Trust Property. 
 Section 2.03. Payments from Paying Agent Account. The Escrow Agent hereby irrevocably instructs the Paying Agent, and the Paying Agent agrees to act, as follows: 

(a) On each Interest Payment Date (as defined in the Deposit Agreement) or as soon thereafter as the Paying Agent has
confirmed receipt in the Paying Agent Account from the Depositary of any amount in respect of accrued interest on the 

  
 6 

 
Deposits, the Paying Agent shall distribute out of the Paying Agent Account the entire amount deposited therein by the Depositary. There shall be so distributed to each Receiptholder of record on
the 15th day (whether or not a Business Day) preceding such Interest Payment Date by check mailed to such Receiptholder, at the address appearing in the Register, such Receiptholder’s pro rata share (based on the Escrow Interest in the Account
Amounts held by such Receiptholder) of the total amount of interest deposited by the Depositary in the Paying Agent Account on such date, except that, with respect to Escrow Receipts registered on the Record Date in the name of The Depository Trust
Company (“DTC”), such distribution shall be made by wire transfer in immediately available funds to the account designated by DTC. 
 (b) Upon the confirmation by the Paying Agent of receipt in the Paying Agent Account from the Depositary of any amount in respect of the Final Withdrawal, the Paying Agent shall forthwith distribute the
entire amount of the Final Withdrawal deposited therein by the Depositary. There shall be so distributed to each Receiptholder of record on the 15th day (whether or not a Business Day) preceding the Final Withdrawal Date by check mailed to such
Receiptholder, at the address appearing in the Register, such Receiptholder’s pro rata share (based on the Escrow Interest in the Account Amounts held by such Receiptholder) of the total amount in the Paying Agent Account on account of such
Final Withdrawal, except that, with respect to Escrow Receipts registered on the Record Date in the name of DTC, such distribution shall be made by wire transfer in immediately available funds to the account designated by DTC. 

(c) If any payment of interest or principal in respect of the Final Withdrawal is not received by the Paying Agent within
five days of the applicable date when due, then it shall be distributed to Receiptholders after actual receipt by the Paying Agent on the same basis as a Special Payment is distributed under the Pass Through Trust Agreement. 

(d) The Paying Agent shall include with any check mailed pursuant to this Section any notice required to be distributed
under the Pass Through Trust Agreement that is furnished to the Paying Agent by the Pass Through Trustee. 

  
 7 

 Section 2.04. Withholding Taxes. The Paying Agent shall exclude and withhold
from each distribution of accrued interest on the Deposits (as defined in the Deposit Agreement) and any amount in respect of the Final Withdrawal any and all withholding taxes applicable thereto as required by law. The Paying Agent agrees to act as
such withholding agent and, in connection therewith, whenever any present or future taxes or similar charges are required to be withheld with respect to any amounts payable in respect of the Deposits (as defined in the Deposit Agreement) or the
escrow amounts, to withhold such amounts and timely pay the same to the appropriate authority in the name of and on behalf of the Receiptholders, that it will file any necessary withholding tax returns or statements when due, and that, as promptly
as possible after the payment thereof, it will deliver to each such Receiptholder appropriate documentation showing the payment thereof, together with such additional documentary evidence as such Receiptholder may reasonably request from time to
time. The Paying Agent agrees to file any other information reports as it may be required to file under United States law. 

Section 2.05. Resignation or Removal of Paying Agent. Subject to the appointment and acceptance of a successor Paying Agent
as provided below, the Paying Agent may resign at any time by giving 30 days’ prior written notice thereof to the Escrow Agent, but may not otherwise be removed except for cause by the Escrow Agent. Upon any such resignation or removal, the
Escrow Agent shall have the right to appoint a successor Paying Agent. If no successor Paying Agent shall have been so appointed and shall have accepted such appointment within 30 days after the retiring Paying Agent’s giving of notice of
resignation or the removal of the retiring Paying Agent, then the retiring Paying Agent may appoint a successor Paying Agent. Any successor Paying Agent shall be a bank or trust company which has an office in the United States with a combined
capital and surplus of at least $100,000,000. Upon the acceptance of any appointment as Paying Agent hereunder by a successor Paying Agent, such successor Paying Agent shall enter into such documents as the Escrow Agent shall require and shall
thereupon succeed to and become vested with all the rights, powers, privileges and duties of the retiring Paying Agent, and the retiring Paying Agent shall be discharged from its duties and obligations hereunder. 

Section 2.06. Notice of Final Withdrawal. Promptly after receipt by the Paying Agent of notice that the Escrow Agent has
requested a Final Withdrawal or that a Final Withdrawal will be made, the Paying Agent shall cause notice of the distribution of the Final Withdrawal to be mailed to each of the Receiptholders at its address as it appears in the Register. Such
notice shall be mailed not less than 15 days prior to the Final Withdrawal Date. Such notice shall set forth: 

(i) the Final Withdrawal Date and the date for determining Receiptholders of record who shall be entitled to receive
distributions in respect of the Final Withdrawal, 
 (ii) the amount of the payment in respect of the Final
Withdrawal for each $1,000 face amount Certificate (based on information provided by the Pass Through Trustee) and the amount thereof constituting unused Deposits (as defined in the Deposit Agreement) and interest thereon, and 

(iii) if the Final Withdrawal Date is the same date as a Regular Distribution Date, the total amount to be received on
such date for each $1,000 face amount Certificate (based on information provided by the Pass Through Trustee). 

  
 8 

 Such mailing may include any notice required to be given to Certificateholders in connection
with such distribution pursuant to the Pass Through Trust Agreement. 
 SECTION 3. Payments. If, notwithstanding the
instructions in Section 4 of the Deposit Agreement that all amounts payable to the Escrow Agent under the Deposit Agreement be paid by the Depositary directly to the Paying Agent, the Pass Through Trustee or a Replacement Depositary (depending
on the circumstances), the Escrow Agent receives any payment thereunder, then the Escrow Agent shall forthwith pay such amount in Dollars and in immediately available funds by wire transfer to (a) in the case of a payment of accrued interest on
the Deposits (as defined in the Deposit Agreement) or any Final Withdrawal, directly to the Paying Agent Account, (b) in the case of any Purchase Withdrawal, directly to the Pass Through Trustee or its designee as specified and in the manner
provided in the Applicable Notice of Purchase Withdrawal and (c) in the case of any Replacement Withdrawal, to the Replacement Depositary as provided in the Replacement Depositary Agreement. The Escrow Agent hereby waives any and all rights of
set-off, combination of accounts, right of retention or similar right (whether arising under applicable law, contract or otherwise) it may have against amounts payable to the Paying Agent howsoever arising. 

SECTION 4. Other Actions. The Escrow Agent shall take such other actions under or in respect of the Deposit Agreement (including,
without limitation, the enforcement of the obligations of the Depositary thereunder) as the Investors, by an Action of Investors, may from time to time request. 
 SECTION 5. Representations and Warranties of the Escrow Agent. The Escrow Agent represents and warrants to US Airways, the Investors, the Paying Agent and the Pass Through Trustee as follows:

 (i) it is a national banking association duly organized and validly existing in good standing under the laws
of the United States of America; 
 (ii) it has full power, authority and legal right to conduct its business and
operations as currently conducted and to enter into and perform its obligations under this Agreement, the Deposit Agreement and any Replacement Deposit Agreement; 

(iii) the execution, delivery and performance of each of this Agreement, the Deposit Agreement and any Replacement Deposit
Agreement have been duly authorized by all necessary corporate action on the part of it and do not require any stockholder approval, or approval or consent of any trustee or holder of any indebtedness or obligations of it, and each such document
(other than a Replacement Deposit Agreement) has been duly executed and delivered by it and constitutes its legal, valid and binding obligations enforceable against it in accordance with the terms hereof or thereof except as such enforceability may
be limited by bankruptcy, insolvency, moratorium, reorganization or other similar laws or equitable principles of general application to or affecting the enforcement of creditors’ rights generally (regardless of whether such enforceability is
considered in a proceeding in equity or at law); 

  
 9 

 (iv) no authorization, consent or approval of or other action by, and no
notice to or filing with, any United States federal or state governmental authority or regulatory body is required for the execution, delivery or performance by it of this Agreement, the Deposit Agreement or any Replacement Deposit Agreement;

 (v) neither the execution, delivery or performance by it of this Agreement, the Deposit Agreement or any
Replacement Deposit Agreement, nor compliance with the terms and provisions hereof or thereof, conflicts or will conflict with or results or will result in a breach or violation of any of the terms, conditions or provisions of, or will require any
consent or approval under, any law, governmental rule or regulation or the charter documents, as amended, or bylaws, as amended, of it or any similar instrument binding on it or any order, writ, injunction or decree of any court or governmental
authority against it or by which it or any of its properties is bound or any indenture, mortgage or contract or other agreement or instrument to which it is a party or by which it or any of its properties is bound, or constitutes or will constitute
a default thereunder or results or will result in the imposition of any lien upon any of its properties; and 

(vi) there are no pending or, to its knowledge, threatened actions, suits, investigations or proceedings (whether or not
purportedly on behalf of it) against or affecting it or any of its property before or by any court or administrative agency which, if adversely determined, (A) would adversely affect the ability of it to perform its obligations under this
Agreement, the Deposit Agreement or any Replacement Deposit Agreement or (B) would call into question or challenge the validity of this Agreement or the Deposit Agreement or the enforceability hereof or thereof in accordance with the terms
hereof or thereof, nor is the Escrow Agent in default with respect to any order of any court, governmental authority, arbitration board or administrative agency so as to adversely affect its ability to perform its obligations under this Agreement or
the Deposit Agreement. 
 SECTION 6. Representations and Warranties of the Paying Agent. The Paying Agent represents and
warrants to US Airways, the Investors, the Escrow Agent and the Pass Through Trustee as follows: 
 (i) it is a
Delaware trust company duly organized and validly existing in good standing under the laws of its jurisdiction of incorporation; 
 (ii) it has full power, authority and legal right to conduct its business and operations as currently conducted and to enter into and perform its obligations under this Agreement; 

(iii) the execution, delivery and performance of this Agreement has been duly authorized by all necessary corporate action
on the part of it and 

  
 10 

 
does not require any stockholder approval, or approval or consent of any trustee or holder of any indebtedness or obligations of it, and such document has been duly executed and delivered by it
and constitutes its legal, valid and binding obligations enforceable against it in accordance with the terms hereof except as such enforceability may be limited by bankruptcy, insolvency, moratorium, reorganization or other similar laws or equitable
principles of general application to or affecting the enforcement of creditors’ rights generally (regardless of whether such enforceability is considered in a proceeding in equity or at law); 

(iv) no authorization, consent or approval of or other action by, and no notice to or filing with, any United States
federal or state governmental authority or regulatory body is required for the execution, delivery or performance by it of this Agreement; 
 (v) neither the execution, delivery or performance by it of this Agreement, nor compliance with the terms and provisions hereof, conflicts or will conflict with or results or will result in a breach or
violation of any of the terms, conditions or provisions of, or will require any consent or approval under, any law, governmental rule or regulation or the charter documents, as amended, or bylaws, as amended, of it or any similar instrument binding
on it or any order, writ, injunction or decree of any court or governmental authority against it or by which it or any of its properties is bound or any indenture, mortgage or contract or other agreement or instrument to which it is a party or by
which it or any of its properties is bound, or constitutes or will constitute a default thereunder or results or will result in the imposition of any lien upon any of its properties; and 

(vi) there are no pending or, to its knowledge, threatened actions, suits, investigations or proceedings (whether or not
purportedly on behalf of it) against or affecting it or any of its property before or by any court or administrative agency which, if adversely determined, (A) would adversely affect the ability of it to perform its obligations under this
Agreement or (B) would call into question or challenge the validity of this Agreement or the enforceability hereof in accordance with the terms hereof, nor is the Paying Agent in default with respect to any order of any court, governmental
authority, arbitration board or administrative agency so as to adversely affect its ability to perform its obligations under this Agreement. 
 SECTION 7. Indemnification. Except for actions expressly required of the Escrow Agent or the Paying Agent hereunder, each of the Escrow Agent and the Paying Agent shall in all cases be fully
justified in failing or refusing to act hereunder unless it shall have been indemnified by the party requesting such action in a manner reasonably satisfactory to it against any and all liability and expense which may be incurred by it by reason of
taking or continuing to take any such action. In the event US Airways requests any amendment to any Operative Agreement (as defined in the Note Purchase Agreement), the Pass Through Trustee agrees to pay all reasonable fees and expenses (including,
without limitation, fees and disbursements of counsel) of the Escrow Agent and the Paying Agent in connection therewith. 

  
 11 

 SECTION 8. Amendment, Etc. Upon request of the Pass Through Trustee and approval by
an Action of Investors, the Escrow Agent and Paying Agent shall enter into an amendment to this Agreement, so long as such amendment does not adversely affect the rights or obligations of the Escrow Agent or the Paying Agent, provided that
upon request of the Pass Through Trustee and without any consent of the Investors, the Escrow Agent and Paying Agent shall enter into an amendment to this Agreement for any of the following purposes: 

(1) to correct or supplement any provision in this Agreement which may be defective or inconsistent with any other
provision herein or to cure any ambiguity or correct any mistake or to modify any other provision with respect to matters or questions arising under this Agreement, provided that any such action shall not materially adversely affect the
interests of the Investors; or 
 (2) to comply with any requirement of the SEC, applicable law, rules or
regulations of any exchange or quotation system on which the Certificates are listed or any regulatory body; or 

(3) to evidence and provide for the acceptance of appointment under this Agreement of a successor Escrow Agent, successor
Paying Agent or successor Pass Through Trustee. 
 SECTION 9. Notices. Unless otherwise expressly provided herein, any
notice or other communication under this Agreement shall be in writing (including by facsimile) and shall be deemed to be given and effective upon receipt thereof. All notices shall be sent to (a) in the case of the Investors, as their
respective addresses shall appear in the Register, (b) in the case of the Escrow Agent, Wells Fargo Bank Northwest, National Association, 260 North Charles Lindbergh Drive, Salt Lake City, UT 84116, Attention: Corporate Trust Services
(Telecopier: (801) 246-7142), (c) in the case of the Pass Through Trustee, Wilmington Trust Company, 1100 North Market Street, Wilmington, DE 19890-1605, Attention: Corporate Trust Administration (Telecopier: (302) 636-4140) or
(d) in the case of the Paying Agent, Wilmington Trust Company, 1100 North Market Street, Wilmington, DE 19890-1605, Attention: Corporate Trust Administration (Telecopier: (302) 636-4140), in each case with a copy to US Airways, Inc., 111
West Rio Salado Parkway, Tempe, Arizona 85281, Attention: Vice President and Treasurer Treasurer (Telecopier: (480) 693-5886) with a copy to: Deputy General Counsel (Telecopier: (480) 693-5932) (or at such other address as any such party
may specify from time to time in a written notice to the other parties). On or prior to the execution of this Agreement, the Pass Through Trustee has delivered to the Escrow Agent a certificate containing specimen signatures of the representatives
of the Pass Through Trustee who are authorized to give notices and instructions with respect to this Agreement. The Escrow Agent may conclusively rely on such certificate until the Escrow Agent receives written notice from the Pass Through Trustee
to the contrary. 
 The Escrow Agent shall notify the Receiptholders in the event of a default in the payment of interest on the
Deposits when due in accordance with the Deposit Agreement or a default in the payment of any Final Withdrawal in accordance with the terms of the Deposit Agreement and this Agreement and shall promptly forward to Receiptholders upon receipt copies
of all written communications relating to any payments due to the Receiptholders in respect of the Deposits. 

  
 12 

 SECTION 10. Transfer. No party hereto shall be entitled to assign or otherwise
transfer this Agreement (or any interest herein) other than (in the case of the Escrow Agent) to a successor escrow agent under Section 1.07 hereof or (in the case of the Paying Agent) to a successor paying agent under Section 2.05 hereof,
and any purported assignment in violation thereof shall be void. This Agreement shall be binding upon the parties hereto and their respective successors and (in the case of the Escrow Agent and the Paying Agent) their respective permitted assigns.
Upon the occurrence of the Transfer (as defined below) contemplated by the Assignment and Assumption Agreement (as defined below), the Pass Through Trustee shall (without further act) be deemed to have transferred all of its right, title and
interest in and to this Agreement to the trustee of the Successor Trust (as defined below) and, thereafter, the trustee of the Successor Trust shall be deemed to be the “Pass Through Trustee” hereunder with the rights and obligations of
the “Pass Through Trustee” hereunder and each reference herein to “US Airways Pass Through Trust 2012-1A-O” shall be deemed to be a reference to “US Airways Pass Through Trust 2012-1A-S”. The parties hereto hereby
acknowledge and consent to the Transfer contemplated by the Assignment and Assumption Agreement. As used herein, “Transfer” means the transfers of the assets to the Successor Trust contemplated by the Assignment and Assumption
Agreement; “Assignment and Assumption Agreement” means the Assignment and Assumption Agreement to be entered into between the Pass Through Trustee and the trustee of the Successor Trust, substantially in the form of Exhibit C to the
Trust Supplement; “Successor Trust” means the US Airways Pass Through Trust 2012-1A-S. 
 SECTION 11. Entire
Agreement. This Agreement sets forth all of the promises, covenants, agreements, conditions and understandings among the Escrow Agent, the Paying Agent, the Underwriters and the Pass Through Trustee with respect to the subject matter hereof, and
supersedes all prior and contemporaneous agreements and undertakings, inducements or conditions, express or implied, oral or written. 
 SECTION 12. Governing Law. This Agreement shall be governed by, and construed in accordance with, the law of the State of New York. 

SECTION 13. Waiver of Jury Trial Right. EACH OF THE ESCROW AGENT, THE PAYING AGENT, THE INVESTORS AND THE PASS THROUGH
TRUSTEE ACKNOWLEDGES AND ACCEPTS THAT IN ANY SUIT, ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT SUCH PARTY IRREVOCABLY WAIVES ITS RIGHT TO A TRIAL BY JURY. 

SECTION 14. Counterparts. This Agreement may be executed in one or more counterparts, all of which taken together shall constitute
one instrument. 
 SECTION 15. Rights of Holders. Each Receiptholder shall have the right (individually and without the
need for any other action of any Person, including the Escrow Agent or any other Receiptholder), upon any default in the payment of interest on the Deposits when due by the Depositary in accordance with the Deposit Agreement, or upon any default in
the payment of the Final Withdrawal when due by the Depositary in accordance with the terms of the Deposit Agreement and this Agreement, (i) to proceed directly against the Depositary by making a demand to the Depositary for the portion of such
payment that would have been distributed to such Receiptholder pursuant to this Agreement or by bringing suit to enforce 

  
 13 

 
payment of such portion and (ii) to enforce any other rights that the Escrow Agent may have in respect of amounts due from the Depositary under the Deposit Agreement and this Agreement that
would have been distributed to such Receiptholder pursuant to this Agreement. Any recovery on such enforcement action shall belong solely to the Receiptholder who brought such action, and not to the Escrow Agent or any other Receiptholder
individually or to Receiptholders as a group. 

  
 14 

 IN WITNESS WHEREOF, the Escrow Agent, the Paying Agent, the Underwriters and the Pass
Through Trustee have caused this Escrow and Paying Agent Agreement (Class A) to be duly executed as of the day and year first above written. 
  

			
	 WELLS FARGO BANK NORTHWEST,
 NATIONAL ASSOCIATION,

	as Escrow Agent
		
	By	 	 /s/ Scott Rosevear

		 	Name: Scott Rosevear
		 	Title: Vice President
	
	MORGAN STANLEY & CO. LLC,
	CITIGROUP GLOBAL MARKETS INC.
	and
	GOLDMAN, SACHS & CO.
	as representatives of the several Underwriters
	
	MORGAN STANLEY & CO. LLC
		
	By	 	 /s/ Heidi Ho

		 	Name: Heidi Ho
		 	Title: Executive Director
	
	CITIGROUP GLOBAL MARKETS INC.
		
	By	 	 /s/ Thomas Bliemel

		 	Name: Thomas Bliemel
		 	Title: Managing Director
	
	GOLDMAN, SACHS & CO.
		
	By	 	 /s/ Goldman, Sachs & Co.

		 	(Goldman, Sachs & Co.)

 Escrow and Paying Agent Agreement (Class A) 

 
			
	 WILMINGTON TRUST COMPANY, not in its
 individual capacity, but solely as Pass Through
 Trustee for and on behalf of US Airways
Pass
 Through Trust 2012-1A-O

		
	By	 	 /s/ Adam Vogelsong

		 	Name: Adam Vogelsong
		 	Title: Assistant Vice President
	
	 WILMINGTON TRUST COMPANY,
as Paying Agent

		
	By	 	 /s/ Adam Vogelsong

		 	Name: Adam Vogelsong
		 	Title: Assistant Vice President

 Escrow and Paying Agent Agreement (Class A) 

 EXHIBIT A 
 US AIRWAYS 2012-1A ESCROW RECEIPT 
 No.      

This Escrow Receipt evidences a fractional undivided interest in amounts (“Account Amounts”) from time to time deposited
on behalf of the holder hereof into a certain paying agent account (the “Paying Agent Account”) described in the Escrow and Paying Agent Agreement (Class A) dated as of May 14, 2012 (as amended, modified or supplemented from
time to time, the “Escrow and Paying Agent Agreement”) among Wells Fargo Bank Northwest, National Association, as Escrow Agent (in such capacity, together with its successors in such capacity, the “Escrow Agent”),
Morgan Stanley & Co. LLC, Citigroup Global Markets Inc. and Goldman, Sachs & Co. as representatives of the several Underwriters, Wilmington Trust Company, as Pass Through Trustee (in such capacity, together with its successors in
such capacity, the “Pass Through Trustee”) and Wilmington Trust Company, as paying agent (in such capacity, together with its successors in such capacity, the “Paying Agent”). Capitalized terms not defined herein
shall have the meanings assigned to them in the Escrow and Paying Agent Agreement. 
 This Escrow Receipt is issued under and is
subject to the terms, provisions and conditions of the Escrow and Paying Agent Agreement. By virtue of its acceptance hereof the holder of this Escrow Receipt assents and agrees to be bound by the provisions of the Escrow and Paying Agent Agreement
and this Escrow Receipt. 
 This Escrow Receipt represents a fractional undivided interest in amounts deposited from time to
time in the Paying Agent Account, and grants or represents no rights, benefits or interests of any kind in respect of any assets or property other than such amounts. This Escrow Receipt evidences the same percentage interest in the Account Amounts
as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which this Escrow Receipt is affixed. 
 All payments and distributions made to Receiptholders in respect of the Escrow Receipt shall be made only from Account Amounts deposited in the Paying Agent Account. The holder of this Escrow Receipt, by
its acceptance of this Escrow Receipt, agrees that it will look solely to the Account Amounts for any payment or distribution due to it pursuant to this Escrow Receipt (or, in case the Depositary shall default in its obligation to make a payment
under the Deposit Agreement that would be an Account Amount, to the Depositary) and that it will not have any recourse to US Airways, the Pass Through Trustee, the Paying Agent or the Escrow Agent, except as expressly provided herein or in the Pass
Through Trust Agreement. No Receiptholder of this Escrow Receipt shall have any right to vote on or in any manner otherwise control the operation and management of the Paying Agent Account, nor shall anything set forth herein, or contained in the
terms of this Escrow Receipt, be construed so as to constitute the Receiptholders from time to time as partners or members of an association. 
 This Escrow Receipt may not be assigned or transferred except in connection with the assignment or transfer of the Certificate to which this Escrow Receipt is affixed. After payment to the holder hereof
of its Escrow Interest in the Final Distribution, upon the request of the Pass Through Trustee, the holder hereof will return this Escrow Receipt to the Pass Through Trustee. 

 The Paying Agent may treat the person in whose name the Certificate to which this Escrow
Receipt is attached as the owner hereof for all purposes, and the Paying Agent shall not be affected by any notice to the contrary. 
 THIS ESCROW RECEIPT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK. 

  
 2 

 IN WITNESS WHEREOF, the Escrow Agent has caused this Escrow Receipt to be duly executed.

 Dated: [                    ], 2012

  

			
	 WELLS FARGO BANK NORTHWEST,
 NATIONAL ASSOCIATION,
as Escrow Agent

		
	By	 	  

		 	Name:
		 	Title:

  
 3 

 EXHIBIT B 
 WITHDRAWAL CERTIFICATE 
 (Class A) 

Wells Fargo Bank Northwest, National Association 
 as Escrow Agent 
 Dear Sirs: 

Reference is made to the Escrow and Paying Agent Agreement, dated as of May 14, 2012 (the “Agreement”). [We hereby certify
to you that the conditions to the obligations of the undersigned to execute a Participation Agreement pursuant to the Note Purchase Agreement have been satisfied] [We hereby notify you that the Depositary is being replaced in accordance with
Section 4(a)(vi) of the Note Purchase Agreement]. Pursuant to Section [1.02(c)][1.02(d)] of the Agreement, please execute the attached [Notice of Purchase Withdrawal][Notice of Replacement Withdrawal] and immediately transmit by facsimile to
the Depositary, at [                    ], Attention:
[                    ]. 
  

			
	Very truly yours,
	
	 WILMINGTON TRUST COMPANY,
 not in its individual capacity but
 solely as Pass Through Trustee

		
	By	 	  

		 	Name:
		 	Title:

 Dated:
                    , 20

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