Document:

Trust Supplement No. 2007-1C, dated as of June 26, 2007

 Exhibit 4.7 
 TRUST SUPPLEMENT NO. 2007-1C 
 dated as of June 26, 2007 
 between 
 WILMINGTON TRUST COMPANY

 as Trustee, 
 and

 UNITED AIR LINES, INC. 
 to 
 PASS THROUGH TRUST AGREEMENT 
 dated as of June 26, 2007 
 $101,736,000 
 United Air Lines Pass Through Trust 2007-1C 
 United Air Lines 
 Pass Through Certificates, 
 Series 2007-1C

 Vedder, Price, Kaufman & Kammholz, P.C. 
 Chicago, Illinois 

 TABLE OF CONTENTS 
  

					
	 	  	 	  	Page
			
	 ARTICLE I
	  	THE CERTIFICATES	  	2
			
	 Section 1.01.
	  	The Certificates	  	2
			
	 ARTICLE II
	  	DEFINITIONS	  	3
			
	 Section 2.01.
	  	Definitions	  	3
			
	 ARTICLE III
	  	DEFAULT	  	6
			
	 Section 3.01.
	  	Purchase Rights of Certificateholders	  	6
			
	 ARTICLE IV
	  	THE TRUSTEE	  	8
			
	 Section 4.01.
	  	Delivery of Documents; Delivery Dates	  	8
	 Section 4.02.
	  	The Trustee	  	9
	 Section 4.03.
	  	Representations and Warranties of the Trustee	  	9
	 Section 4.04.
	  	Trustee Liens	  	10
	 Section 4.05.
	  	Trustee Reports	  	10
			
	 ARTICLE V
	  	TRANSFER OF THE APPLICABLE CERTIFICATES	  	11
			
	 Section 5.01.
	  	Restrictive Legends	  	11
	 Section 5.02.
	  	Amendment of Section 3.04 of the Basic Agreement	  	11
	 Section 5.03.
	  	Transfer and Exchange	  	11
	 Section 5.04.
	  	Special Transfer Provisions	  	12
			
	 ARTICLE VI
	  	ADDITIONAL AMENDMENT; SUPPLEMENTAL AGREEMENTS	  	13
			
	 Section 6.01.
	  	Supplemental Agreements Without Consent of Applicable Certificateholders	  	13
	 Section 6.02.
	  	Consent of Holders of Certificates Issued under other Trusts	  	14
			
	 ARTICLE VII
	  	MISCELLANEOUS PROVISIONS	  	14
			
	 Section 7.01.
	  	Basic Agreement Ratified	  	14
	 Section 7.02.
	  	GOVERNING LAW	  	14
	 Section 7.03.
	  	Execution in Counterparts	  	14
	 Section 7.04.
	  	Intention of Parties	  	14

  

					
	 Exhibit A
	  	-	  	Form of Certificate
	 Exhibit B
	  	-	  	DTC Letter of Representations

  

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 THIS TRUST SUPPLEMENT NO. 2007-1C, dated as of June 26, 2007 (herein called the
“Trust Supplement”), between United Air Lines, Inc., a Delaware corporation (the “Company”), and Wilmington Trust Company (the “Trustee”), to the Pass Through Trust Agreement, dated as of
June 26, 2007, between the Company and the Trustee (the “Basic Agreement”). 
 WITNESSETH: 
 WHEREAS, the Basic Agreement, unlimited as to the aggregate principal amount of Certificates (unless otherwise specified herein, capitalized terms
used herein without definition having the respective meanings specified in the Basic Agreement) which may be issued thereunder, has heretofore been executed and delivered; 
 WHEREAS, the Company intends to finance certain Aircraft through separate secured loan transactions, under which the Company will own such
Aircraft (collectively, the “Aircraft”); 
 WHEREAS, in the case of each Aircraft, the Company will issue pursuant to
an Indenture, on a recourse basis, Equipment Notes secured by such Aircraft; 
 WHEREAS, the Trustee hereby declares the creation of
the United Air Lines Pass Through Trust 2007-1C (the “Applicable Trust”) for the benefit of the Applicable Certificateholders, and the initial Applicable Certificateholders as the grantors of the Applicable Trust, by their
respective acceptances of the Applicable Certificates, join in the creation of the Applicable Trust with the Trustee; 
 WHEREAS, all
Certificates to be issued by the Applicable Trust will evidence fractional undivided interests in the Applicable Trust and will convey no rights, benefits or interests in respect of any property other than the Trust Property; 
 WHEREAS, pursuant to the terms and conditions of the Basic Agreement as supplemented by this Trust Supplement (the “Agreement”)
and the Note Purchase Agreement, the Trustee on behalf of the Applicable Trust, using funds from the sale of the Applicable Certificates, shall purchase one or more Equipment Notes having the same interest rate as, and final maturity date not later
than the final Regular Distribution Date of, the Applicable Certificates issued hereunder and shall hold such Equipment Notes in trust for the benefit of the Applicable Certificateholders; 
 WHEREAS, all of the conditions and requirements necessary to make this Trust Supplement, when duly executed and delivered, a valid, binding and
legal instrument in accordance with its terms and for the purposes herein expressed, have been done, performed and fulfilled, and the execution and delivery of this Trust Supplement in the form and with the terms hereof have been in all respects
duly authorized; 
 WHEREAS, this Trust Supplement is subject to the provisions of the Trust Indenture Act of 1939, as amended, and
shall, to the extent applicable, be governed by such provisions; 

 [Trust Supplement No. 2007-1C] 
  

 NOW THEREFORE, in consideration of the premises herein, it is agreed between the Company and
the Trustee as follows: 
 ARTICLE I 
 THE CERTIFICATES 
 Section 1.01. The Certificates. There is hereby created a
series of Certificates to be issued under the Agreement to be distinguished and known as “United Air Lines Pass Through Certificates, Series 2007-1C” (hereinafter defined as the “Applicable Certificates”). Each Applicable
Certificate represents a fractional undivided interest in the Applicable Trust created hereby. The Applicable Certificates shall be the only instruments evidencing a fractional undivided interest in the Applicable Trust. 
 The terms and conditions applicable to the Applicable Certificates are as follows: 
 (a) The aggregate principal amount of the Applicable Certificates that shall be authenticated under the Agreement (except for Applicable Certificates
authenticated and delivered under Sections 3.03, 3.04, 3.05 and 3.06 of the Basic Agreement) is $101,736,000. 
 (b) The Regular
Distribution Dates with respect to any payment of Scheduled Payments means January 2 and July 2 of each year, commencing on January 2, 2008, until payment of all of the Scheduled Payments to be made under the Equipment Notes has been
made. 
 (c) The Special Distribution Dates with respect to the Applicable Certificates means any Business Day on which a Special Payment is
to be distributed pursuant to the Agreement. 
 (d) (i) The Applicable Certificates shall be in the form attached hereto as Exhibit A.
Any Person acquiring or accepting an Applicable Certificate or an interest therein will, by such acquisition or acceptance, be deemed to represent and warrant to and for the benefit of the Company that either (i) the assets of an employee
benefit plan subject to Title I of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), or of a plan subject to Section 4975 of the Internal Revenue Code of 1986, as amended (the
“Code”), have not been used to purchase or hold Applicable Certificates or an interest therein or (ii) the purchase and holding of Applicable Certificates or an interest therein is exempt from the prohibited transaction
restrictions of ERISA and the Code pursuant to one or more prohibited transaction statutory or administrative exemptions. In addition, the Applicable Certificate will bear a legend regarding ERISA compliance matters. 
 (ii) The Applicable Certificates shall be Book-Entry Certificates and shall be subject to the conditions set forth in the Letter of
Representations between the Company and the Clearing Agency attached hereto as Exhibit B. 
 (e) The Applicable Certificates are subject
to the Intercreditor Agreement. 
  

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 (f) The Equipment Notes to be acquired and held in the Applicable Trust, and the related Aircraft and
Note Documents, are described in the Note Purchase Agreement. 
 (g) The Cut-off Date is July 4, 2007. 
 ARTICLE II 
 DEFINITIONS

 Section 2.01. Definitions. For all purposes of the Basic Agreement as supplemented by this Trust Supplement, the
following capitalized terms have the following meanings (any capitalized term used herein but not defined shall have the meaning assigned to it in the Basic Agreement, and any term used herein which is defined in both this Trust Supplement and the
Basic Agreement shall have the meaning assigned thereto in this Trust Supplement for purposes of the Basic Agreement as supplemented by this Trust Supplement): 
 Agreement: Has the meaning specified in the recitals hereto. 
 Aircraft: Means
each of the Aircraft in respect of which a Participation Agreement is entered into in accordance with the Note Purchase Agreement (or any substitute aircraft, including engines therefor, owned by the Company and securing one or more Equipment
Notes). 
 Applicable Certificate: Has the meaning specified in Section 1.01 of this Trust Supplement. 
 Applicable Certificateholder: Means the Person in whose name an Applicable Certificate is registered on the Register for the Applicable
Certificates. 
 Applicable Trust: Has the meaning specified in the recitals hereto. 
 Basic Agreement: Has the meaning specified in the first paragraph of this Trust Supplement. 
 Business Day: Means any day other than a Saturday, a Sunday or a day on which commercial banks are required or authorized to close in
Chicago, Illinois, New York, New York, or, so long as any Applicable Certificate of such series is outstanding, the city and state in which the Trustee or any related Loan Trustee maintains its corporate trust office or receives and disburses funds.

 Certificate: Has the meaning specified in the Intercreditor Agreement. 
 Certificate Buyout Event: Means that a United Bankruptcy Event has occurred and is continuing and the following events in either clause
(A) or (B) have occurred: (A) (i) the 60-day period specified in Section 1110(a)(2)(A) of the U.S. Bankruptcy Code (the “60-Day Period”) has expired and (ii) United has not entered into one or more
agreements under Section 1110(a)(2)(A) of the U.S. Bankruptcy Code to perform all of its obligations under all of the Indentures or, if it has entered into such agreements, has at any time thereafter failed to cure any default under any of the
Indentures in accordance with Section 1110(a)(2)(B) of the Bankruptcy Code; or (B) if prior to the expiry of the 60-Day Period, United shall have abandoned any Aircraft. 
  

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 Class: Has the meaning specified in the Intercreditor Agreement. 
 Company: Has the meaning specified in the first paragraph of this Trust Supplement. 
 Controlling Party: Has the meaning specified in the Intercreditor Agreement. 
 Distribution Date: Means any Regular Distribution Date or Special Distribution Date as the context requires. 
 Final Maturity Date: Means July 2, 2014. 
 Intercreditor Agreement: Means the Intercreditor Agreement dated as of June 26, 2007 among the Trustee, the Other Trustees, the Liquidity Provider and Wilmington Trust Company, as Subordination
Agent and as trustee thereunder, as amended, supplemented or otherwise modified from time to time in accordance with its terms. 
 Investors: Means the Underwriters, together with all subsequent beneficial owners of the Applicable Certificates. 
 Liquidity Provider: Means, initially, Morgan Stanley Senior Funding, Inc., a corporation duly established under the laws of the State of Delaware, as liquidity provider under the Class A Liquidity Facility and
Class B Liquidity Facility (as such terms are defined in the Intercreditor Agreement) and any replacements or successors therefor appointed in accordance with the Intercreditor Agreement. 
 Note Documents: Means the Equipment Notes with respect to the Applicable Certificates and, with respect to any such Equipment Note, the
Indenture, the Parent Guarantee and the Participation Agreement relating to such Equipment Note. 
 Note Purchase Agreement:
Means the Note Purchase Agreement dated as of June 26, 2007 among the Trustee, the Other Trustees, the Company and the Subordination Agent, providing for, among other things, the purchase of Equipment Notes by the Trustee on behalf of the
Applicable Trust, as the same may be amended, supplemented or otherwise modified from time to time, in accordance with its terms. 
 Other Agreements: Means (i) the Basic Agreement as supplemented by Trust Supplement No. 2007-1A dated as of the date hereof relating to United Air Lines Pass Through Trust 2007-1A, (ii) the Basic Agreement as
supplemented by Trust Supplement No. 2007-1B dated as of the date hereof relating to United Air Lines Pass Through Trust 2007-1B, (iii) the Basic Agreement as supplemented by a Trust Supplement relating to any Additional Trust and
(iv) the Basic Agreement as supplemented by a Trust Supplement relating to any Refinancing Trust. 
 Other Trustees: Means
the trustees under the Other Agreements, and any successor or other trustee appointed as provided therein. 
  

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 Other Trusts: Means the United Air Lines Pass Through Trust 2007-1A, the United Air
Lines Pass Through Trust 2007-1B, an Additional Trust or Trusts, if any, and a Refinancing Trust or Trusts, if any, created by the Other Agreements. 
 Prospectus Supplement: Means the final Prospectus Supplement dated June 19, 2007 relating to the offering of the Applicable Certificates, the Class A and the Class B Certificates.

 QIB: Means a qualified institutional buyer as defined in Rule 144A. 
 Ratings Confirmation: Has the meaning specified in the Intercreditor Agreement. 
 Register: Has the meaning specified in Section 5.03 of this Trust Supplement. 
 Registrar: Has the meaning specified in Section 5.03 of this Trust Supplement. 
 Restrictive Legend: Has the meaning specified in Section 5.01 of this Trust Supplement. 
 Rule 144A: Means Rule 144A under the Securities Act and any successor rule thereto. 
 Scheduled Payment: Means, with respect to any Equipment Note, any payment of principal or interest on such Equipment Note (other than any
such payment which is not in fact received by the Trustee or any Subordination Agent within ten (10) Business Days of the date on which such payment is scheduled to be made), which payment represents the installment of principal on such
Equipment Note at the stated maturity of such installment, the payment of regularly scheduled interest accrued on the unpaid principal amount of such Equipment Note, or both; provided, however, that any payment of principal, premium,
if any, Break Amount, if any, or interest resulting from the redemption or purchase of any Equipment Note shall not constitute a Scheduled Payment. 
 Securities Act: Means the United States Securities Act of 1933, as amended from time to time, or any successor thereto. 
 Special Payment: Means any payment (other than a Scheduled Payment) in respect of, or any proceeds of, any Equipment Note or Collateral (as defined in each Indenture). 
 Triggering Event: Has the meaning assigned to such term in the Intercreditor Agreement. 
 Trust Property: Means (i) subject to the Intercreditor Agreement, the Equipment Notes held as the property of the Applicable Trust,
the Parent Guarantee with respect to such Equipment Notes, all monies at any time paid thereon and all monies due and to become due thereunder, (ii) funds from time to time deposited in the Certificate Account and the Special Payments Account
and, subject to the Intercreditor Agreement, any proceeds from the sale by the Trustee pursuant to Article VI of the Basic Agreement of any Equipment Note and (iii) all rights of the Applicable Trust and the Trustee, on behalf of the
Applicable Trust, under the Intercreditor Agreement and the Note Purchase Agreement, including, without limitation, all rights to receive certain payments thereunder, and all monies paid to the Trustee on behalf of the Applicable Trust pursuant to
the Intercreditor Agreement. 
  

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 Trust Supplement: Has the meaning specified in the first paragraph of this trust
supplement. 
 Trustee: Has the meaning specified in the first paragraph of this Trust Supplement. 
 Underwriters: Means, collectively, Morgan Stanley & Co. Incorporated and Credit Suisse Securities (USA) LLC. 
 Underwriting Agreement: Means the Underwriting Agreement dated June 19, 2007 among the Underwriters and the Company, as the same may
be amended, supplemented or otherwise modified from time to time in accordance with its terms. 
 United Bankruptcy Event: Has
the meaning specified in the Intercreditor Agreement. 
 ARTICLE III 
 DEFAULT 
 Section 3.01. Purchase Rights of
Certificateholders. (a) At any time after the occurrence and during the continuation of a Certificate Buyout Event, each Applicable Certificateholder (other than the Company or any of its Affiliates) shall have the right (which shall
not expire upon any purchase of the Class A Certificates pursuant to the Class B Trust Agreement) to purchase, for the purchase prices set forth in the Class A Trust Agreement and the Class B Trust Agreement, respectively, all, but not
less than all, of the Class A Certificates and the Class B Certificates upon 15 days’ written notice to the Class A Trustee, the Class B Trustee and each other Applicable Certificateholder, on the third Business Day next following the
expiry of such 15-day notice period, provided that (A) if prior to the end of such 15 day period any other Applicable Certificateholder (other than the Company or any of its Affiliates) notifies such purchasing Applicable Certificateholder that
such other Applicable Certificateholder wants to participate in such purchase, then such other Applicable Certificateholder (other than the Company or any of its Affiliates) may join with the purchasing Applicable Certificateholder to purchase all,
but not less than all, of the Class A Certificates and the Class B Certificates pro rata based on the Fractional Undivided Interest in the Applicable Trust held by each such Applicable Certificateholder and (B) if prior to the end of such
15 day period any other Applicable Certificateholder fails to notify the purchasing Applicable Certificateholder of such other Applicable Certificateholder’s desire to participate in such a purchase, then such other Applicable Certificateholder
shall lose its right to purchase the Class A Certificates and the Class B Certificates pursuant to this Section 3.01(a); 
 (b) By
acceptance of its Applicable Certificate, each Applicable Certificateholder agrees that at any time after the occurrence and during the continuation of a Certificate Buyout Event: 
 (i) if any Additional Certificates are issued pursuant to one or more Additional Trusts, each Additional Certificateholder (other than the
Company or any of 

  

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its Affiliates), shall have the right (which shall not expire upon any purchase of the Class A Certificates pursuant to the Class B Trust Agreement
or any purchase of the Class A Certificates and Class B Certificates pursuant to clause (a) above) to purchase all, but not less than all, of the Applicable Certificates, the Class A Certificates, the Class B Certificates
and any Additional Certificates ranked senior to the Additional Certificates held by the purchasing Additional Certificateholders upon 15 days’ written notice to the Trustee, the Class A Trustee, the Class B Trustee, any Additional
Trustee with respect to Additional Certificates that rank senior to the Additional Certificates held by the purchasing Additional Certificateholders and each other Additional Certificateholder of the same Class, on the third Business Day next
following the expiry of such 15-day notice period, provided that (A) if prior to the end of such 15 day period any other Additional Certificateholder of such Class (other than the Company or any of its Affiliates) notifies such
purchasing Additional Certificateholder that such other Additional Certificateholder wants to participate in such purchase, then such other Additional Certificateholder (other than the Company or any of its Affiliates) may join with the purchasing
Additional Certificateholder to purchase all, but not less than all, of the Applicable Certificates, the Class A Certificates, the Class B Certificates and such senior Additional Certificates pro rata based on the Fractional Undivided
Interest in the applicable Additional Trust held by each such Additional Certificateholder and (B) if prior to the end of such 15 day period any other Additional Certificateholder of such Class fails to notify the purchasing Additional
Certificateholder of such other Additional Certificateholder’s desire to participate in such a purchase, then such other Additional Certificateholder shall lose its right to purchase the Applicable Certificates, the Class A Certificates,
the Class B Certificates and such senior Additional Certificates pursuant to this Section 3.01(b)(ii). 
 (ii) if
any Refinancing Certificates are issued, each Refinancing Certificateholder shall have the same right (subject to the same terms and conditions) to purchase Certificates pursuant to Section 3.01(a) (and to receive notice in connection
therewith) as the Certificateholders of the Class that such Refinancing Certificates refinanced. 
 The purchase price with respect to the
Applicable Certificates shall be equal to the Pool Balance of the Applicable Certificates, together with accrued and unpaid interest thereon to the date of such purchase, without premium or Break Amount, but including any other amounts then due and
payable to the Applicable Certificateholders under the Agreement, the Intercreditor Agreement or any Note Document or on or in respect of the Applicable Certificates; provided, however, that no such purchase of Applicable Certificates
shall be effective unless the purchaser(s) shall certify to the Trustee that contemporaneously with such purchase, such purchaser(s) is (are) purchasing, pursuant to the terms of the Agreement and the Other Agreements, all of the Applicable
Certificates, the Class A Certificates, the Class B Certificates and, if applicable, the Additional Certificates that are senior to the securities held by such purchaser(s). Each payment of the purchase price of the Applicable Certificates
referred to in the first sentence hereof shall be made to an account or accounts designated by the Trustee and each such purchase shall be subject to the terms of this Section 3.01. Each Applicable Certificateholder agrees by its acceptance of
its Applicable Certificate that (at any time after the occurrence of a Certificate Buyout Event) it will, upon payment from such Additional 

  

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Certificateholder(s) or Refinancing Certificateholders, as the case may be, of the purchase price set forth in the first sentence of this paragraph,
(i) forthwith sell, assign, transfer and convey to the purchaser(s) thereof (without recourse, representation or warranty of any kind except for its own acts), all of the right, title, interest and obligation of such Applicable
Certificateholder in the Agreement, the Intercreditor Agreement, the Note Purchase Agreement, the Note Documents and all Applicable Certificates held by such Applicable Certificateholder (excluding all right, title and interest under any of the
foregoing to the extent such right, title or interest is with respect to an obligation not then due and payable as respects any action or inaction or state of affairs occurring prior to such sale) (and the purchaser shall assume all of such
Applicable Certificateholder’s obligations under the Agreement, the Intercreditor Agreement, the Note Purchase Agreement, the Note Documents and all such Applicable Certificates), (ii) if such purchase occurs after a Record Date relating
to any distribution and prior to or on the related Distribution Date, forthwith turn over to the purchaser(s) of its Applicable Certificate all amounts, if any, received by it on account of such distribution. The Applicable Certificates will be
deemed to be purchased on the date payment of the purchase price is made notwithstanding the failure of the Applicable Certificateholders to deliver any Applicable Certificates and, upon such a purchase, (I) the only rights of the Applicable
Certificateholders will be to deliver the Applicable Certificates to the purchaser(s) and receive the purchase price for such Applicable Certificates and (II) if the purchaser(s) shall so request, such Applicable Certificateholder will comply
with all the provisions of Section 3.04 of the Basic Agreement to enable new Applicable Certificates to be issued to the purchaser in such denominations as it shall request. All charges and expenses in connection with the issuance of any such
new Applicable Certificates shall be borne by the purchaser thereof. 
 As used in this Section 3.01 and elsewhere in this Trust
Supplement, the terms “Additional Certificate”, “Additional Certificateholder”, “Additional Equipment Notes”, “Additional Trust”, “Additional Trust Agreement”, “Additional Trustee”,
“Class A Certificate”, “Class A Certificateholder”, “Class A Trust”, “Class A Trust Agreement”, “Class A Trustee”, “Class B Certificate”, “Class B
Certificateholder”, “Class B Trust”, “Class B Trust Agreement”, “Class B Trustee”, “Refinancing Certificates”, “Refinancing Certificateholder”, “Refinancing Equipment
Notes” and “Refinancing Trust” shall have the respective meanings assigned to such terms in the Intercreditor Agreement. 
 (c) This Section 3.01 supersedes and replaces Section 6.01(b) of the Basic Agreement, with respect to the Applicable Trust. 
 ARTICLE IV 
 THE TRUSTEE 
 Section 4.01. Delivery of Documents; Delivery Dates. The Trustee is hereby directed (i) to execute and deliver the Intercreditor Agreement and the Note Purchase Agreement on or prior to the
Issuance Date, each in the form delivered to the Trustee by the Company, and (ii) subject to the respective terms thereof, to perform its obligations thereunder. Upon request of the Company and the satisfaction or waiver of the closing
conditions specified in the Underwriting Agreement, the Trustee shall execute, deliver, authenticate, issue and sell Applicable Certificates in authorized denominations equaling in the aggregate the amount set 

  

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forth, with respect to the Applicable Trust, in Schedule I to the Underwriting Agreement evidencing the entire ownership interest in the Applicable
Trust, which amount equals the maximum aggregate principal amount of Equipment Notes which may be purchased by the Trustee pursuant to the Note Purchase Agreement. Except as provided in Sections 3.03 and 3.06 of the Basic Agreement, the Trustee
shall not execute, authenticate or deliver Applicable Certificates in excess of the aggregate amount specified in this paragraph. The provisions of this Section 4.01 supersede and replace the first sentence of Section 4.02(a) of the Basic
Agreement, with respect to the Applicable Trust. 
 Section 4.02. The Trustee. (a) Subject to Section 4.03 of
this Trust Supplement and Section 7.15 of the Basic Agreement, the Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Trust Supplement or the Note Purchase Agreement or the due
execution hereof or thereof by the Company or the other parties thereto (other than the Trustee), or for or in respect of the recitals and statements contained herein or therein, all of which recitals and statements are made solely by the Company,
except that the Trustee hereby represents and warrants that each of this Trust Supplement, the Basic Agreement, each Applicable Certificate, the Intercreditor Agreement and the Note Purchase Agreement has been executed and delivered by one of its
officers who is duly authorized to execute and deliver such document on its behalf. 
 (b) Except as herein otherwise provided and except
during the continuation of an Event of Default in respect of the Applicable Trust created hereby, no duties, responsibilities or liabilities are assumed, or shall be construed to be assumed, by the Trustee by reason of this Trust Supplement other
than as set forth in the Agreement, and this Trust Supplement is executed and accepted on behalf of the Trustee, subject to all the terms and conditions set forth in the Agreement, as fully to all intents as if the same were herein set forth at
length. 
 Section 4.03. Representations and Warranties of the Trustee. The Trustee hereby represents and warrants that:

 (a) the Trustee has full power, authority and legal right to execute, deliver and perform this Trust Supplement, the Intercreditor
Agreement, the Note Purchase Agreement and the Note Documents to which it is or is to become a party and has taken all necessary action to authorize the execution, delivery and performance by it of this Trust Supplement, the Intercreditor Agreement,
the Note Purchase Agreement and the Note Documents to which it is or is to become a party; 
 (b) the execution, delivery and performance by
the Trustee of this Trust Supplement, the Intercreditor Agreement, the Note Purchase Agreement and the Note Documents to which it is or is to become a party (i) will not violate any provision of any United States federal law or the law of the
state of the United States where it is located governing the banking and trust powers of the Trustee or any order, writ, judgment, or decree of any court, arbitrator or governmental authority applicable to the Trustee or any of its assets,
(ii) will not violate any provision of the articles of association or by-laws of the Trustee, and (iii) will not violate any provision of, or constitute, with or without notice or lapse of time, a default under, or result in the creation
or imposition of any lien on any properties included in the Trust Property pursuant to the provisions of any mortgage, indenture, contract, agreement or other undertaking 

  

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to which it is a party, which violation, default or lien could reasonably be expected to have an adverse effect on the Trustee’s performance or ability
to perform its duties hereunder or thereunder or on the transactions contemplated herein or therein; 
 (c) the execution, delivery and
performance by the Trustee of this Trust Supplement, the Intercreditor Agreement, the Note Purchase Agreement and the Note Documents to which it is or is to become a party will not require the authorization, consent, or approval of, the giving of
notice to, the filing or registration with, or the taking of any other action in respect of, any governmental authority or agency of the United States or the state of the United States where it is located regulating the banking and corporate trust
activities of the Trustee; and 
 (d) this Trust Supplement, the Intercreditor Agreement, the Note Purchase Agreement and the Note Documents
to which it is or is to become a party have been, or will be, as applicable, duly executed and delivered by the Trustee and constitute, or will constitute, as applicable, the legal, valid and binding agreements of the Trustee, enforceable against it
in accordance with their respective terms; provided, however, that enforceability may be limited by (i) applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the rights of creditors generally and
(ii) general principles of equity. 
 Section 4.04. Trustee Liens. The Trustee in its individual capacity agrees,
in addition to the agreements contained in Section 7.17 of the Basic Agreement, that it will at its own cost and expense promptly take any action as may be necessary to duly discharge and satisfy in full any Trustee’s Liens on or with
respect to the Trust Property which is attributable to the Trustee in its individual capacity and which is unrelated to the transactions contemplated by the Intercreditor Agreement or the Note Purchase Agreement. 
 Section 4.05. Trustee Reports. Promptly following any early redemption or purchase of, or any default in the payment of principal or
interest in respect of, any of the Equipment Notes held in the Applicable Trust, the Trustee shall furnish to Applicable Certificateholders of record on such date a statement setting forth (x) the expected Pool Balances for each subsequent
Regular Distribution Date, (y) the related Pool Factors for such Regular Distribution Dates and (z) the expected principal distribution schedule of the Equipment Notes, in the aggregate, held as Trust Property of such Applicable Trust at
the date of such notice. With respect to the Applicable Certificates registered in the name of a Clearing Agency or its nominee, on any date on which the Trustee is required to a statement as provided above, the Trustee will request that such
Clearing Agency post on its Internet bulletin board a securities position listing setting forth the names of all Clearing Agency Participants reflected on such Clearing Agency’s books as holding interests in the Applicable Certificates on such
date. The Trustee will mail to each such Clearing Agency Participant the statement described above and will make available additional copies as requested by such Clearing Agency Participant for forwarding to holders of interests in the Applicable
Certificates. 
  

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 ARTICLE V 
 TRANSFER OF THE APPLICABLE CERTIFICATES 
 Section 5.01. Restrictive Legends. All
Applicable Certificates issued pursuant to the Agreement shall bear a legend to the following effect (the “Restrictive Legend”): 
 THIS
CERTIFICATE IS SUBJECT TO TRANSFER RESTRICTIONS. BY ITS ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS THAT IT IS A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT); (2) AGREES THAT IT WILL NOT
RESELL OR OTHERWISE TRANSFER THIS CERTIFICATE EXCEPT TO A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT); AND (3) AGREES THAT IF IT SHOULD RESELL OR OTHERWISE TRANSFER THIS CERTIFICATE IT WILL
DELIVER TO EACH PERSON TO WHOM THIS CERTIFICATE IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND. IN CONNECTION WITH ANY TRANSFER OF THIS CERTIFICATE, THE TRANSFEREE MUST COMPLETE THE FORM ON THE REVERSE HEREOF RELATING TO THE
MANNER OF SUCH TRANSFER AND SUBMIT SUCH FORM TO THE TRUSTEE. TRUST SUPPLEMENT NO. 2007-1C TO THE PASS THROUGH TRUST AGREEMENT CONTAINS A PROVISION REQUIRING THE REGISTRAR TO REFUSE TO REGISTER ANY TRANSFER OF THIS CERTIFICATE IN VIOLATION OF THE
FOREGOING RESTRICTIONS. 
 Section 5.02. Amendment of Section 3.04 of the Basic Agreement. Sections 5.03 and 5.04
of this Trust Supplement supersede and replace Section 3.04 of the Basic Agreement, with respect to the Applicable Trust. 
 Section
5.03. Transfer and Exchange. The Trustee shall cause to be kept at the office or agency to be maintained by it in accordance with the provisions of Section 7.12 of the Basic Agreement a register (the
“Register”) of the Applicable Certificates in which, subject to such reasonable regulations as it may prescribe, the Trustee shall provide for the registration of such Applicable Certificates and of transfers and exchanges of such
Applicable Certificates as herein provided. The Trustee shall initially be the registrar (the “Registrar”) for the purpose of registering such Applicable Certificates and transfers and exchanges of such Applicable Certificates as
herein provided. 
 All Applicable Certificates issued upon any registration of transfer or exchange of Applicable Certificates shall be
valid obligations of the Applicable Trust, evidencing the same interest therein, and entitled to the same benefits under this Agreement, as the Applicable Certificates surrendered upon such registration of transfer or exchange. 
 Upon surrender for registration of transfer of any Applicable Certificate at the Corporate Trust Office or such other office or agency with the form of
transfer notice thereon duly completed and executed, and otherwise complying with the terms of this Agreement, including providing evidence of compliance with any restrictions on transfer, in form satisfactory to the Trustee and the Registrar, the
Trustee shall execute, authenticate and deliver, in the name of the designated transferee or transferees, one or more new Applicable Certificates of like series, in 

  

 11 

 [Trust Supplement No. 2007-1C] 
  

 
authorized denominations of a like aggregate Fractional Undivided Interest. Whenever any Applicable Certificates are so surrendered for exchange, the Trustee
shall execute, authenticate and deliver the Applicable Certificates that the Applicable Certificateholder making the exchange is entitled to receive. Every Applicable Certificate presented or surrendered for registration of transfer or exchange
shall be duly endorsed or accompanied by a written instrument of transfer in form satisfactory to the Trustee and the Registrar duly executed by the Applicable Certificateholder thereof or its attorney duly authorized in writing. 
 The Registrar shall not register the transfer or exchange of any Applicable Certificate in the name of any Person unless and until evidence satisfactory
to the Company and the Trustee that the conditions to any such transfer or exchange set forth in Section 5.04 shall have been satisfied is submitted to them. Such conditions shall be deemed satisfied with respect to a transfer if the transferor
and transferee duly execute and deliver to the Trustee the transfer notice in the form attached to the Applicable Certificate, unless the Company or the Trustee has a reasonable basis for requesting additional evidence. 
 To permit registrations of transfers and exchanges in accordance with the terms, conditions and restrictions hereof, the Trustee shall execute and
authenticate Applicable Certificates at the Registrar’s request. No service charge shall be made to an Applicable Certificateholder for any registration of transfer or exchange of Applicable Certificates, but the Trustee shall require payment
of a sum sufficient to cover any tax or governmental charge that may be imposed in connection with any transfer or exchange of Applicable Certificates. All Applicable Certificates surrendered for registration of transfer or exchange shall be
canceled and subsequently destroyed by the Trustee. 
 Section 5.04. Special Transfer Provisions. 
 (a) Transfers Limited to QIBs. If an Applicable Certificate is to be transferred, the Registrar shall register the transfer only if such transfer
is being made to a proposed transferee who has provided the transfer notice attached to the form of Applicable Certificate stating that it is purchasing the Applicable Certificate for its own account or an account with respect to which it exercises
sole investment discretion and that it and any such account is a QIB within the meaning of Rule 144A. 
 (b) Restrictive Legend. Upon
the transfer, exchange or replacement of Applicable Certificates, the Registrar shall deliver only Applicable Certificates that bear the Restrictive Legend. 
 (c) General. By acceptance of any Applicable Certificate, each Holder of such an Applicable Certificate will be deemed to: 
 (i) Represent that it is accepting such Applicable Certificate for its own account or an account with respect to which it exercises sole
investment discretion and that it and any such account is a QIB; 
 (ii) Agree that any sale or other transfer by it of any
Applicable Certificate will only be made to a QIB; 
  

 12 

 [Trust Supplement No. 2007-1C] 
  

 (iii) Agree that it will, and each subsequent transferee will be required to, deliver
to each person to whom it transfers Applicable Certificates notice of these restrictions on transfer of the Applicable Certificates; 
 (iv) Agree that no registration of the transfer of an Applicable Certificate will be made unless the transferee completes and submits to the Trustee the form included on the reverse of the Applicable Certificate in which it states that it
is purchasing the Applicable Certificate for its own account or an account with respect to which it exercises sole investment discretion and that it and any such account is a QIB; 
 (v) Understand that the Applicable Certificates will bear a legend substantially to the effect of the Restrictive Legend; 
 (vi) Acknowledge that the Company, the Trustee, the Underwriters, and others will rely on the truth and accuracy of the foregoing
acknowledgments, representations, warranties and agreements and agree that, if any of the acknowledgments, representations, warranties and agreements deemed to have been made by its purchase of the Applicable Certificates is no longer accurate, it
shall promptly notify the Company, the Trustee and the Underwriters. If it is acquiring any Applicable Certificates as a fiduciary or agent of one or more investor accounts, it represents that it has sole investment discretion with respect to each
such investor account and that it has full power to make the foregoing acknowledgments, representations and agreements on behalf of each such investor account; 
 (vii) Acknowledge that the foregoing restrictions apply to holders of beneficial interests in the Applicable Certificates as well as to
registered holders of Applicable Certificates; and 
 (viii) Acknowledge that the Trustee will not be required to accept for
registration of transfer any Applicable Certificate unless evidence satisfactory to the Company and the Trustee that the restrictions on transfer set forth herein have been complied with is submitted to them. 
 Until such time as no Applicable Certificates remain Outstanding, the Registrar shall retain copies of all letters, notices and other written
communications received pursuant to this Section 5.04. The Trustee, if not the Registrar at such time, shall have the right to inspect and make copies of all such letters, notices or other written communications at any reasonable time upon the
giving of reasonable written notice to the Registrar. 
 ARTICLE VI 
 ADDITIONAL AMENDMENT; SUPPLEMENTAL AGREEMENTS 
 Section 6.01.
Supplemental Agreements Without Consent of Applicable Certificateholders. Without limitation of Section 9.01 of the Basic Agreement, under the terms of, and subject to the limitations contained in, Section 9.01 of the Basic
Agreement, the Company may (but will not be required to), and the Trustee (subject to Section 9.03 of the Basic Agreement) shall, at the Company’s request, at any time and from time to time, (i) enter into one 

  

 13 

 [Trust Supplement No. 2007-1C] 
  

 
or more agreements supplemental to the Agreement, the Intercreditor Agreement or the Note Purchase Agreement to provide for the formation of one or more
Additional Trusts, the issuance of Additional Certificates, the purchase by any Additional Trust of applicable Additional Equipment Notes and other matters incidental thereto or otherwise contemplated by Section 2.01(b) of the Basic Agreement,
subject to the provisions of Section 4(a)(i) of the Note Purchase Agreement and Section 9.1 of the Intercreditor Agreement, and (ii) enter into one or more agreements supplemental to the Agreement to provide for the formation of one
or more Refinancing Trusts, the issuance of Refinancing Certificates, the purchase by any Refinancing Trust of applicable Refinancing Equipment Notes and other matters incidental thereto or as otherwise contemplated by Section 2.01(b) of the
Basic Agreement, subject to the provisions of Section 4(a)(i) of the Note Purchase Agreement and Section 9.1(c) of the Intercreditor Agreement. 
 Section 6.02. Consent of Holders of Certificates Issued under other Trusts. Notwithstanding any provision in Section 6.01 of this Trust Supplement to the contrary, no amendment or
modification of Section 3.01 of this Trust Supplement shall be effective unless the trustee for each Class of Certificates affected by such amendment or modification shall have consented thereto. 
 ARTICLE VII 
 MISCELLANEOUS
PROVISIONS 
 Section 7.01. Basic Agreement Ratified. Except and so far as herein expressly provided, all of the
provisions, terms and conditions of the Basic Agreement are in all respects ratified and confirmed; and the Basic Agreement and this Trust Supplement shall be taken, read and construed as one and the same instrument. All replacements of provisions
of, and other modifications of the Basic Agreement set forth in this Trust Supplement are solely with respect to the Applicable Trust. 
 Section 7.02. GOVERNING LAW. THIS AGREEMENT SHALL IN ALL RESPECTS BE GOVERNED BY THE LAW OF THE STATE OF NEW YORK, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND PERFORMANCE. THIS AGREEMENT IS BEING DELIVERED IN
THE STATE OF NEW YORK. 
 Section 7.03. Execution in Counterparts. This Trust Supplement may be executed in any
number of counterparts, each of which shall be an original, but such counterparts shall together constitute but one and the same instrument. 
 Section 7.04. Intention of Parties. The parties hereto intend that the Applicable Trust be classified for U.S. federal income tax purposes as a grantor trust under Subpart E, Part I of Subchapter J of the
Internal Revenue Code of 1986, as amended, and not as a trust or association taxable as a corporation or as a partnership. Each Applicable Certificateholder and Investor, by its acceptance of its Applicable Certificate or a beneficial interest
therein, agrees to treat the Applicable Trust as a grantor trust for all U.S. federal, state and local income tax purposes. The powers granted and obligations undertaken pursuant to the Agreement shall be so construed so as to further such intent.

  

 14 

 [Trust Supplement No. 2007-1C] 
  

 IN WITNESS WHEREOF, the Company and the Trustee have caused this Trust Supplement to be duly
executed by their respective officers thereto duly authorized, as of the day and year first written above. 
  

			
	 UNITED AIR LINES, INC.

		
	 By:
	 	 /s/ Stephen Lieberman

	 Name:
	 	Stephen Lieberman
	 Title:
	 	Vice President and Treasurer
	
	 WILMINGTON TRUST COMPANY, as Trustee

		
	 By:
	 	 /s/ W. Chris Sponenberg

	 Name:
	 	W. Chris Sponenberg
	 Title:
	 	Vice President

  

 15 

 [Trust Supplement No. 2007-1C] 
  

 EXHIBIT A 
 FORM OF CERTIFICATE 
 Certificate No. 
 [Unless this certificate is presented by an authorized representative of The Depository Trust Company, a New York corporation (“DTC”), to Issuer or its agent for registration of transfer, exchange or
payment, and any certificate issued is registered in the name of Cede & Co. or in such other name as is requested by an authorized representative of DTC (and any payment is made to Cede & Co. or to such other entity as is requested
by an authorized representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch the registered owner hereof, Cede & Co., has an interest herein.]* 
 THIS CERTIFICATE IS SUBJECT TO TRANSFER RESTRICTIONS. BY ITS ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS THAT IT IS A “QUALIFIED
INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT); (2) AGREES THAT IT WILL NOT RESELL OR OTHERWISE TRANSFER THIS CERTIFICATE EXCEPT TO A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE
SECURITIES ACT); AND (3) AGREES THAT IF IT SHOULD RESELL OR OTHERWISE TRANSFER THIS CERTIFICATE IT WILL DELIVER TO EACH PERSON TO WHOM THIS CERTIFICATE IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND. IN CONNECTION WITH ANY
TRANSFER OF THIS CERTIFICATE, THE TRANSFEREE MUST COMPLETE THE FORM ON THE REVERSE HEREOF RELATING TO THE MANNER OF SUCH TRANSFER AND SUBMIT SUCH FORM TO THE TRUSTEE. TRUST SUPPLEMENT NO. 2007-1C TO THE PASS THROUGH TRUST AGREEMENT CONTAINS A
PROVISION REQUIRING THE REGISTRAR TO REFUSE TO REGISTER ANY TRANSFER OF THIS CERTIFICATE IN VIOLATION OF THE FOREGOING RESTRICTIONS. 
 EITHER: (A) THE HOLDER IS NOT ACQUIRING THIS CERTIFICATE OR AN INTEREST HEREIN WITH PLAN ASSETS OF ANY PLAN OR AN INDIVIDUAL RETIREMENT PLAN SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED
(“ERISA”), OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”); OR (B) THE HOLDER’S PURCHASE AND HOLDING OF THIS CERTIFICATE OR AN INTEREST HEREIN ARE EXEMPT FROM THE
PROHIBITED TRANSACTION RESTRICTIONS OF SECTION 406(A) OF ERISA AND SECTION 4975 OF THE CODE BY AN ADMINISTRATIVE CLASS PROHIBITED TRANSACTION EXEMPTION GRANTED BY THE DEPARTMENT OF LABOR. 
  

	*	This legend to appear on Book-Entry Certificates to be deposited with the Depository Trust Company. 

  

 EXHIBIT A 
 Page 1 

 [Trust Supplement No. 2007-1C] 
  

 UNITED AIR LINES PASS THROUGH TRUST 2007-1C 
 United Air Lines Pass Through Certificate, Series 2007-1C 
 Issuance Date: June 26,
2007 
 Final Maturity Date: July 2, 2014 
 Evidencing A Fractional Undivided Interest In The United Air Lines Pass 
 Through Trust 2007-1C, The Property
Of Which Shall Include Certain Equipment 
 Notes Each Secured By An Aircraft Owned By United Air Lines, Inc. 
 $[                    ] Fractional Undivided
Interest 
 representing [0.000xxxxxxx%] of the Trust per $1,000 face amount 
 THIS CERTIFIES THAT                     , for
value received, is the registered owner of a $                    
(                                        
                                        
DOLLARS) Fractional Undivided Interest in the United Air Lines Pass Through Trust 2007-1C (the “Trust”) created by Wilmington Trust Company, as trustee (the “Trustee”), pursuant to a Pass Through Trust Agreement,
dated as of June 26, 2007 (the “Basic Agreement”), between the Trustee and United Air Lines, Inc., a Delaware corporation (the “Company”), as supplemented by Trust Supplement No. 2007-1C thereto, dated as
of June 26, 2007 (the “Trust Supplement” and, together with the Basic Agreement, the “Agreement”), between the Trustee and the Company, a summary of certain of the pertinent provisions of which is set forth
below. To the extent not otherwise defined herein, the capitalized terms used herein have the meanings assigned to them in the Agreement. This Certificate is one of the duly authorized Certificates designated as “United Air Lines Pass Through
Certificates, Series 2007-1C” (herein called the “Certificates”). This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement. By virtue of its acceptance hereof, the holder of this
Certificate (the “Certificateholder” and, together with all other holders of Certificates issued by the Trust, the “Certificateholders”) assents to and agrees to be bound by the provisions of the Agreement and the
Intercreditor Agreement. The property of the Trust includes certain Equipment Notes, the Parent Guarantee with respect to such Equipment Notes and all rights of the Trust to receive payments under the Intercreditor Agreement (the “Trust
Property”). Each issue of the Equipment Notes is secured by, among other things, a security interest in an Aircraft owned by the Company. 
 The Certificates represent Fractional Undivided Interests in the Trust and the Trust Property and have no rights, benefits or interest in respect of any other separate trust established pursuant to the terms of the Basic Agreement for any
other series of certificates issued pursuant thereto. 
 Subject to and in accordance with the terms of the Agreement and the Intercreditor
Agreement, from funds then available to the Trustee, there will be distributed on January 2 and July 2 of each year (a “Regular Distribution Date”) commencing January 2, 2008, to the Person in whose name this
Certificate is registered at the close of business on the 15th day preceding the Regular Distribution Date, an amount in respect of the Scheduled Payments on the Equipment Notes due on such Regular Distribution Date, the receipt of which has been
confirmed by the 

  

 EXHIBIT A 
 Page 2 

 [Trust Supplement No. 2007-1C] 
  

 
Trustee, equal to the product of the percentage interest in the Trust evidenced by this Certificate and an amount equal to the sum of such Scheduled
Payments. Subject to and in accordance with the terms of the Agreement and the Intercreditor Agreement, in the event that Special Payments on the Equipment Notes are received by the Trustee, from funds then available to the Trustee, there shall be
distributed on the applicable Special Distribution Date, to the Person in whose name this Certificate is registered at the close of business on the 15th day preceding the Special Distribution Date, an amount in respect of such Special Payments on
the Equipment Notes, the receipt of which has been confirmed by the Trustee, equal to the product of the percentage interest in the Trust evidenced by this Certificate and an amount equal to the sum of such Special Payments so received. If a Regular
Distribution Date or Special Distribution Date is not a Business Day, distribution shall be made on the immediately following Business Day with the same force and effect as if made on such Regular Distribution Date or Special Distribution Date and
interest shall accrue during the intervening period. The Trustee shall mail notice of each Special Payment and the Special Distribution Date therefor to the Certificateholder of this Certificate. 
 Distributions on this Certificate will be made by the Trustee by check mailed to the Person entitled thereto, without presentation or surrender of this
Certificate or the making of any notation hereon, except that with respect to Certificates registered on the Record Date in the name of a Clearing Agency (or its nominee), such distribution shall be made by wire transfer. Except as otherwise
provided in the Agreement and notwithstanding the above, the final distribution on this Certificate will be made after notice mailed by the Trustee of the pendency of such distribution and only upon presentation and surrender of this Certificate at
the office or agency of the Trustee specified in such notice. 
 The Certificates do not represent a direct obligation of, or an obligation
guaranteed by, or an interest in, the Company or the Trustee or any affiliate thereof. The Certificates are limited in right of payment, all as more specifically set forth on the face hereof and in the Agreement. All payments or distributions made
to Certificateholders under the Agreement shall be made only from the Trust Property and only to the extent that the Trustee shall have sufficient income or proceeds from the Trust Property to make such payments in accordance with the terms of the
Agreement. Each Certificateholder of this Certificate, by its acceptance hereof, agrees that it will look solely to the income and proceeds from the Trust Property to the extent available for distribution to such Certificateholder as provided in the
Agreement. This Certificate does not purport to summarize the Agreement and reference is made to the Agreement for information with respect to the interests, rights, benefits, obligations, privileges, and duties evidenced hereby. A copy of the
Agreement may be examined during normal business hours at the principal office of the Trustee, and at such other places, if any, designated by the Trustee, by any Certificateholder upon request. 
 The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Company
and the rights of the Certificateholders under the Agreement at any time by the Company and the Trustee with the consent of the Certificateholders holding Certificates evidencing Fractional Undivided Interests aggregating not less than a majority in
interest in the Trust. Any such consent by the Certificateholder of this Certificate shall be conclusive and binding on such Certificateholder and upon all future Certificateholders of this Certificate and of any Certificate issued upon the 

  

 EXHIBIT A 
 Page 3 

 [Trust Supplement No. 2007-1C] 
  

 
transfer hereof or in exchange hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the Certificateholders of any of the Certificates. 
 As provided
in the Agreement and subject to certain limitations set forth therein, the transfer of this Certificate is registrable in the Register upon surrender of this Certificate for registration of transfer at the offices or agencies maintained by the
Trustee in its capacity as Registrar, or by any successor Registrar, duly endorsed or accompanied by a written instrument of transfer in form satisfactory to the Trustee and the Registrar, duly executed by the Certificateholder hereof or such
Certificateholder’s attorney duly authorized in writing, and thereupon one or more new Certificates of authorized denominations evidencing the same aggregate Fractional Undivided Interest in the Trust will be issued to the designated transferee
or transferees. 
 The Certificates are issuable only as registered Certificates without coupons in minimum denominations of $1,000
Fractional Undivided Interest and integral multiples thereof, except that one Certificate may be issued in a different denomination. As provided in the Agreement and subject to certain limitations therein set forth, the Certificates are exchangeable
for new Certificates of authorized denominations evidencing the same aggregate Fractional Undivided Interest in the Trust, as requested by the Certificateholder surrendering the same. 
 No service charge will be made for any such registration of transfer or exchange, but the Trustee shall require payment of a sum sufficient to cover any
tax or governmental charge payable in connection therewith. 
 Each Certificateholder and Investor, by its acceptance of this Certificate or
a beneficial interest herein, agrees to treat the Trust as a grantor trust for all U.S. federal, state and local income tax purposes. 
 The
Trustee, the Registrar, and any agent of the Trustee or the Registrar may treat the person in whose name this Certificate is registered as the owner hereof for all purposes, and neither the Trustee, the Registrar, nor any such agent shall be
affected by any notice to the contrary. 
 The obligations and responsibilities created by the Agreement and the Trust created thereby shall
terminate upon the distribution to Certificateholders of all amounts required to be distributed to them pursuant to the Agreement and the disposition of all property held as part of the Trust Property. 
 Any Person acquiring or accepting this Certificate or an interest herein will, by such acquisition or acceptance, be deemed to have represented and
warranted to and for the benefit of the Company that either: (i) the assets of an employee benefit plan subject to Title I of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), or of a plan subject
to Section 4975 of the Internal Revenue Code of 1986, as amended (the “Code”), have not been used to purchase or hold this Certificate or an interest herein or (ii) the purchase and holding of this Certificate or an
interest herein are exempt from the prohibited transaction restrictions of 

  

 EXHIBIT A 
 Page 4 

 [Trust Supplement No. 2007-1C] 
  

 
ERISA and the Code pursuant to one or more prohibited transaction statutory or administrative exemptions. 
 By acceptance of this Certificate, each Certificateholder will be deemed to: 
 (i) Represent that it is accepting this Certificate for its own account or an account with respect to which it exercises sole investment discretion and
that it and any such account is a QIB; 
 (ii) Agree that any sale or other transfer by it of this Certificate will only be made to a QIB;

 (iii) Agree that it will deliver to each person to whom it transfers this Certificate notice of these restrictions on transfer of this
Certificate; 
 (iv) Agree that no registration of the transfer of a Certificate will be made unless the transferee completes and submits to
the Trustee the form included on the reverse of this Certificate in which it states that it is purchasing this Certificate for its own account or an account with respect to which it exercises sole investment discretion and that it and any such
account is a QIB; 
 (v) Understand that this Certificate will bear a legend substantially to the effect of the Restrictive Legend;

 (vi) Acknowledge that the Company, the Trustee, the Underwriters, and others will rely on the truth and accuracy of the foregoing
acknowledgments, representations, warranties and agreements and agree that, if any of the acknowledgments, representations, warranties and agreements deemed to have been made by its purchase of this Certificate is no longer accurate, it shall
promptly notify the Company, the Trustee and the Underwriters. If it is acquiring this Certificate as a fiduciary or agent of one or more investor accounts, it represents that it has sole investment discretion with respect to each such investor
account and that it has full power to make the foregoing acknowledgments, representations and agreements on behalf of each such investor account; 
 (vii) Acknowledge that the foregoing restrictions apply to holders of beneficial interests in this Certificate as well as to registered holders of this Certificate; and 
 (viii) Acknowledge that the Trustee will not be required to accept for registration of transfer this Certificate unless evidence satisfactory to the
Company and the Trustee that the restrictions on transfer set forth herein have been complied with is submitted to them. 
 THE RELATED
PASS THROUGH TRUST AGREEMENT AND THIS CERTIFICATE SHALL BE GOVERNED AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH
LAWS. 
  

 EXHIBIT A 
 Page 5 

 [Trust Supplement No. 2007-1C] 
  

 Unless the certificate of authentication hereon has been executed by the Trustee, by manual
signature, this Certificate shall not be entitled to any benefit under the Agreement or be valid for any purpose. 
 IN WITNESS
WHEREOF, the Trustee has caused this Certificate to be duly executed. 
  

			
	 UNITED AIR LINES PASS THROUGH
 TRUST 2007-1C

		
	By:	 	 WILMINGTON TRUST COMPANY,
 as
Trustee

		
	By:	 	  

	Name:	 	
	Title:	 	

  

 EXHIBIT A 
 Page 6 

 [Trust Supplement No. 2007-1C] 
  

 FORM OF THE TRUSTEE’S CERTIFICATE OF AUTHENTICATION 
 This is one of the Certificates referred to in the within-mentioned Agreement. 
  

			
	 WILMINGTON TRUST COMPANY,
 as
Trustee

		
	By:	 	  

	Name:	 	
	Title:	 	

  

 EXHIBIT A 
 Page 7 

 [Trust Supplement No. 2007-1C] 
  

 TRANSFER NOTICE 
 FORM OF TRANSFER NOTICE 
 FOR VALUE RECEIVED the undersigned registered holder hereby sell(s),
assign(s) and transfer(s) unto 
 Insert Taxpayer Identification No. 
  

			
	  
	 	
		
	  
  
	 	

 please print or typewrite name and address including zip code of assignee 

			
	  
  
	 	

 the within Certificate and all rights thereunder, hereby irrevocably constituting and appointing 

			
	  
  
	 	

 attorney to transfer said Certificate on the books of the Registrar with full power of substitution in the
premises. 

			
	  
  
	 	

 In connection with any transfer of this Certificate, the undersigned confirms: 
 The Registrar shall not be obligated to register this Certificate in the name of any Person other than the Holder hereof unless and until the conditions
to any such transfer of registration set forth herein and in Section 5.03 of the Trust Supplement shall have been satisfied. 
  

			
	Date: [                ,     ]	 	[Name of Transferor]
		
		 	NOTE: The signature must correspond with the name as written upon the face of the within-mentioned instrument in every particular, without alteration or any change
whatsoever.

 Signature Guarantee:
                                        
                 
 TO BE COMPLETED BY PURCHASER

 The undersigned represents and warrants that it is purchasing this Certificate for its own account or an account with respect to which it
exercises sole investment discretion and that it and any such account is a “qualified institutional buyer” within the meaning of Rule 144A under the Securities Act of 1933, as amended. 
  

 EXHIBIT A 
 Page 8 

 [Trust Supplement No. 2007-1C] 
  

 In addition, the undersigned has reviewed this Certificate and makes the representations, agreements,
understandings and acknowledgments deemed made by a Person acquiring or accepting this Certificate as set forth therein. 
  

							
	Date: [                    ]	 	 	 	 	  	  

		 		 		  	NOTE: To be executed by an executive officer.]

  

 EXHIBIT A 
 Page 9 

 [Trust Supplement No. 2007-1C] 
  

 EXHIBIT B 
 [DTC Letter of Representations] 
  

 EXHIBIT B 
 Page 1Revolving Credit Agreement (2007-1A), dated as of June 26, 2007

 Exhibit 4.8 
  

 REVOLVING CREDIT AGREEMENT 
 (2007-1A) 
 dated as of June 26, 2007 
 between 
 WILMINGTON TRUST COMPANY,

 as Subordination Agent, 
 as
Agent and Trustee for the 
 United Air Lines Pass Through Trust 2007-1A, 
 as Borrower 
 and 
 MORGAN STANLEY SENIOR FUNDING, INC., 
 as Liquidity Provider 
  

 Relating to United Air Lines

 Pass Through Trust 2007-1A 
 United Air Lines Pass Through Certificates, Series 2007-1A 
  

  

 TABLE OF CONTENTS 
  

							
	 	 	 	  	Page
	 ARTICLE I
	 	DEFINITIONS	  	1
		
	 Section 1.01 Certain Defined Terms
	  	1
			
	 ARTICLE II
	 	AMOUNT AND TERMS OF THE COMMITMENT	  	7
		
	 Section 2.01     The Advances
	  	7
	 Section 2.02     Making the Advances
	  	7
	 Section 2.03     Fees
	  	9
	 Section 2.04     Automatic Reductions and Termination of the Maximum Commitment
	  	9
	 Section 2.05     Repayments of Interest Advances , the Special Termination Advance or the Final
Advance
	  	10
	 Section 2.06     Repayments of Provider Advances
	  	10
	 Section 2.07     Payments to the Liquidity Provider Under the Intercreditor Agreement
	  	11
	 Section 2.08     Book Entries
	  	12
	 Section 2.09     Payments from Available Funds Only
	  	12
	 Section 2.10     Extension of the Expiry Date; Non-Extension Advance
	  	12
			
	 ARTICLE III
	 	OBLIGATIONS OF THE BORROWER	  	12
		
	 Section 3.01     Increased Costs
	  	12
	 Section 3.02     Capital Adequacy
	  	13
	 Section 3.03     Payments Free of Deductions
	  	14
	 Section 3.04     Payments
	  	15
	 Section 3.05     Computations
	  	15
	 Section 3.06     Payment on Non-Business Days
	  	15
	 Section 3.07     Interest
	  	16
	 Section 3.08     Replacement of Borrower
	  	17
	 Section 3.09     Funding Loss Indemnification
	  	17
	 Section 3.10     Illegality
	  	17
			
	 ARTICLE IV
	 	CONDITIONS PRECEDENT	  	18
		
	 Section 4.01     Conditions Precedent to Effectiveness of Section 2.01
	  	18
	 Section 4.02     Conditions Precedent to Borrowing
	  	19

  

 i 

 TABLE OF CONTENTS 
 (continued) 
  

							
	 	 	 	  	Page
	 ARTICLE V
	 	COVENANTS	  	19
		
	 Section 5.01     Affirmative Covenants of the Borrower
	  	19
	 Section 5.02     Negative Covenants of the Borrower
	  	20
			
	 ARTICLE VI
	 	LIQUIDITY EVENTS OF DEFAULT AND SPECIAL TERMINATION	  	20
		
	 Section 6.01     Liquidity Events of Default and Special Termination
	  	20
			
	 ARTICLE VII
	 	MISCELLANEOUS	  	21
		
	 Section 7.01     Amendments, Etc
	  	21
	 Section 7.02     Notices, Etc
	  	21
	 Section 7.03     No Waiver; Remedies
	  	22
	 Section 7.04     Further Assurances
	  	22
	 Section 7.05     Indemnification; Survival of Certain Provisions
	  	22
	 Section 7.06     Liability of the Liquidity Provider
	  	23
	 Section 7.07     Costs, Expenses and Taxes
	  	23
	 Section 7.08     Binding Effect; Participations
	  	24
	 Section 7.09     Severability
	  	25
	 Section 7.10     GOVERNING LAW
	  	25
	 Section 7.11     Submission to Jurisdiction; Waiver of Jury Trial; Waiver of Immunity
	  	25
	 Section 7.12     Execution in Counterparts
	  	26
	 Section 7.13     Entirety
	  	26
	 Section 7.14     Headings
	  	26
	 Section 7.15     LIQUIDITY PROVIDER’S OBLIGATION TO MAKE ADVANCES
	  	26

  

					
	 Annex I
	 	-  	 	Interest Advance Notice of Borrowing
	 Annex II
	 	-  	 	Non-Extension Advance Notice of Borrowing
	 Annex III
	 	-  	 	Downgrade Advance Notice of Borrowing
	 Annex IV
	 	-  	 	Final Advance Notice of Borrowing
	 Annex V
	 	-  	 	Notice of Termination
	 Annex VI
	 	-  	 	Notice of Replacement Subordination Agent
	 Annex VII
	 	-  	 	Special Termination Advance Notice of Borrowing
	 Annex VIII
	 	-  	 	Notice of Special Termination

  

 ii 

 REVOLVING CREDIT AGREEMENT (2007-1A) 
 THIS REVOLVING CREDIT AGREEMENT (2007-1A) dated as of June 26, 2007 (this “Agreement”), between WILMINGTON TRUST
COMPANY, a Delaware banking corporation, not in its individual capacity but solely as Subordination Agent under the Intercreditor Agreement (each as defined below), as agent and trustee for the Class A Trust (as defined below) (the
“Borrower”), and MORGAN STANLEY SENIOR FUNDING, INC., a Delaware corporation (the “Liquidity Provider”). 
 W I T N E S S E T H: 
 WHEREAS, pursuant to the Class A Trust Agreement (such term and
all other capitalized terms used in these recitals having the meanings set forth or referred to in Section 1.01), the Class A Trust is issuing the Class A Certificates; 
 WHEREAS, the Borrower, in order to support the timely payment of a portion of the interest on the Class A Certificates in accordance with
their terms, has requested the Liquidity Provider to enter into this Agreement, providing in part for the Borrower to request in specified circumstances that Advances be made hereunder; and 
 WHEREAS, Morgan Stanley, a Delaware corporation (the “Guarantor”), will guarantee in full, pursuant to a guarantee
agreement dated as of the date hereof and issued by the Guarantor (the “Guarantee Agreement”), the payment obligations of the Liquidity Provider under this Agreement. 
 NOW, THEREFORE, in consideration of the premises, the parties hereto agree as follows: 
 ARTICLE I 
 DEFINITIONS 
 Section 1.01 Certain Defined Terms. (a) Definitions. As used in this Agreement and unless otherwise expressly indicated, or
unless the context clearly requires otherwise, the following capitalized terms shall have the following respective meanings for all purposes of this Agreement: 
 “Additional Costs” has the meaning assigned to such term in Section 3.01. 
 “Advance” means an Interest Advance, a Final Advance, a Provider Advance, a Special Termination Advance, an Applied Special Termination Advance or an Applied Provider Advance, as the case may be. 
 “Applicable Liquidity Rate” has the meaning assigned to such term in Section 3.07(g). 
 “Applicable Margin” means (x) with respect to any Unpaid Advance (other than an Unapplied Special Termination Advance) or
Applied Provider Advance, 1.75% per annum, or (y) with respect to any Unapplied Provider Advance, the rate per annum specified in the Fee Letter, or (z) with respect to any Unapplied Special Termination Advance, the margin per annum
specified in the Fee Letter. 

 [Revolving Credit Agreement (2007-1A)] 
  

 “Applied Downgrade Advance” has the meaning assigned to such term in
Section 2.06(a). 
 “Applied Non-Extension Advance” has the meaning assigned to such term in
Section 2.06(a). 
 “Applied Provider Advance” has the meaning assigned to such term in Section 2.06(a).

 “Applied Special Termination Advance” has the meaning assigned to such term in Section 2.05. 
 “Base Rate” means, for a day, a fluctuating interest rate per annum in
effect from time to time, which rate per annum shall at all times be equal to (a) the weighted average of the rates on overnight Federal funds transactions with members of the Federal Reserve System arranged by Federal funds brokers, as
published for such day (or, if such day is not a Business Day, for the preceding Business Day) by the Federal Reserve Bank of New York, or if such rate is not so published for any day that is a Business Day, the average of the quotations for such
day for such transactions received by the Liquidity Provider from three Federal funds brokers of recognized standing selected by it, plus (b) one-quarter of one percent ( 1/4 of 1%). 
 “Base Rate Advance” means
an Advance that bears interest at a rate based upon the Base Rate. 
 “Borrower” has the meaning assigned to such
term in the recital of parties to this Agreement. 
 “Borrowing” means the making of Advances requested by delivery
of a Notice of Borrowing. 
 “Business Day” means any day other than a Saturday or Sunday or a day on which
commercial banks are required or authorized to close in Chicago, Illinois, New York, New York or, so long as any Class A Certificate is outstanding, the city and state in which the Class A Trustee, the Borrower or any Loan Trustee
maintains its corporate trust office or receives or disburses funds, and, if the applicable Business Day relates to any Advance or other amount bearing interest based on the LIBOR Rate, on which dealings in dollars are carried on in the London
interbank market. 
 “Code” means the Internal Revenue Code of 1986, as amended. 
 “Downgrade Advance” means an Advance made pursuant to Section 2.02(c). 
 “Downgrade Event” means a downgrading of the Guarantor’s short-term unsecured debt rating or short-term issuer credit rating
(as applicable) issued by either Rating Agency below the applicable Threshold Rating or the Guarantee ceases to be in full force and effect or becomes invalid or unenforceable or the Guarantor repudiates its liability thereunder, unless each Rating

  

 2 

 [Revolving Credit Agreement (2007-1A)] 
  

 
Agency shall have confirmed in writing on or prior to the date of such downgrading that such downgrading will not result in the downgrading, withdrawal or
suspension of the ratings of the Class A Certificates, in which case such downgrading of the Guarantor’s short-term unsecured debt rating or short-term issuer credit rating (as applicable) shall not constitute a Downgrade Event.

 “Effective Date” has the meaning assigned to such term in Section 4.01. The delivery of the certificate of
the Liquidity Provider contemplated by Section 4.01(e) shall be conclusive evidence that the Effective Date has occurred. 
 “Excluded Taxes” means (i) Taxes imposed on, based on, or measured by the overall net income, capital, franchises or receipts (other than Taxes which are or are in the nature of sales or use Taxes or value added
Taxes) of the Liquidity Provider or of its Lending Office by the jurisdiction where such Liquidity Provider’s principal office or such Lending Office is located or any other taxing jurisdiction in which such Tax is imposed as a result of the
Liquidity Provider being, or having been, organized in, or conducting, or having conducted, any activities unrelated to the transactions contemplated by the Operative Agreements in such jurisdiction, and (ii) Excluded Withholding Taxes.

 “Excluded Withholding Taxes” means (i) withholding Taxes imposed by the United States except (but only in the
case of a successor Liquidity Provider organized under the laws of a jurisdiction outside the United States) to the extent that such United States withholding Taxes are imposed or increased as a result of any change in applicable law (excluding from
change in applicable law for this purpose a change in an applicable treaty or other change in law affecting the applicability of a treaty) after the date hereof, or in the case of a successor Liquidity Provider (including a transferee of an
Advance), after the date on which such successor Liquidity Provider obtains its interest, (ii) any withholding Taxes imposed by the United States which are imposed or increased as a result of the Liquidity Provider failing to deliver to the
Borrower any certificate or document (which certificate or document in the good faith judgment of the Liquidity Provider it is legally entitled to provide) which is reasonably requested by the Borrower to establish that payments under this Agreement
are exempt from (or entitled to a reduced rate of) withholding Tax, and (iii) withholding Taxes imposed by the United States on payments to a recipient in any other jurisdiction to which such Lending Office is moved if, under the laws in effect
at the time of such move, such laws would require greater withholding of Taxes on payments to such Liquidity Provider acting from an office in such jurisdiction than would be required on payments to such Liquidity Provider acting from an office in
the jurisdiction from which such Lending Office was moved. 
 “Expenses” means liabilities, obligations, damages,
settlements, penalties, claims, actions, suits, costs, expenses, and disbursements (including, without limitation, reasonable fees and disbursements of legal counsel and costs of investigation), provided that Expenses shall not include any Taxes.

 “Expiry Date” means the anniversary date of the Closing Date immediately following the date the Liquidity Provider
has provided written notice to the Borrower by the Notice Date of the Liquidity Provider’s desire not to extend beyond such anniversary date its obligation to make Advances. 
  

 3 

 [Revolving Credit Agreement (2007-1A)] 
  

 “Final Advance” means an Advance made pursuant to Section 2.02(d).

 “GAAP” means generally accepted accounting principles as set forth in the statements of financial accounting
standards issued by the Financial Accounting Standards Board of the American Institute of Certified Public Accountants, as such principles may at any time or from time to time be varied by any applicable financial accounting rules or regulations
issued by the Securities and Exchange Commission and, with respect to any person, shall mean such principles applied on a basis consistent with prior periods except as may be disclosed in such person’s financial statements. 
 “Guarantee Agreement” has the meaning assigned to such term in the recitals to this Agreement. 
 “Guarantor” has the meaning assigned to such term in the recitals to this Agreement. 
 “Indemnified Tax” has the meaning assigned to such term in Section 3.03(a). 
 “Intercreditor Agreement” means the Intercreditor Agreement dated as of the date hereof among the Trustees, the Liquidity
Provider, the liquidity provider under the other Liquidity Facility and the Subordination Agent, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 
 “Interest Advance” means an Advance made pursuant to Section 2.02(a). 
 “Interest Period” means, with respect to any LIBOR Advance, each of the following periods: 
 (i) the period beginning on the third Business Day following either (x) the date of the Liquidity Provider’s receipt of the
Notice of Borrowing for such LIBOR Advance or (y) the date of the withdrawal of funds from the Class A Cash Collateral Account for the purpose of paying interest on the Class A Certificates as contemplated by Section 2.06(a)
hereof and, in either case, ending on the next Regular Distribution Date (or, if such day is not a Business Day, the next succeeding Business Day); and 
 (ii) each subsequent period commencing on the last day of the immediately preceding Interest Period and ending on the next Regular Distribution Date (or, if such day is not a Business Day, the next succeeding Business
Day); 
 provided, however, that if (x) the Final Advance shall have been made, or (y) other outstanding Advances shall have been converted into
the Final Advance, then the Interest Periods shall be successive periods of one month beginning on the third Business Day following the Liquidity Provider’s receipt of the Notice of Borrowing for such Final Advance (in the case of
clause (x) above) or the Regular Distribution Date (or, if such day is not a Business Day, the next succeeding Business Day) following such conversion (in the case of clause (y) above). 
 “Lending Office” means the office of the Liquidity Provider presently located in New York, New York, or such other office as the
Liquidity Provider from time to time shall notify the Borrower as its Lending Office hereunder; provided that the Liquidity Provider shall not change its Lending Office to another Lending Office outside the United States of America except in
accordance with Section 3.01, 3.02 or 3.03 hereof. 
  

 4 

 [Revolving Credit Agreement (2007-1A)] 
  

 “LIBOR Advance” means an Advance bearing interest at a rate based upon the
LIBOR Rate. 
 “LIBOR Rate” means, with respect to any Interest Period, 
 (i) the rate per annum appearing on Bloomberg L.P. page “BBAM” (or any successor or substitute therefor) at approximately
11:00 a.m. (London time) two Business Days before the first day of such Interest Period, as the rate for dollar deposits with a maturity comparable to such Interest Period, or 
 (ii) if the rate calculated pursuant to clause (i) above is not available, the average (rounded upwards, if necessary, to the next
1/16 of 1%) of the rates per annum at which deposits in dollars are offered for the relevant Interest Period by three banks of recognized standing selected by the Liquidity Provider in the London interbank market at approximately 11:00 a.m.
(London time) two Business Days before the first day of such Interest Period in an amount approximately equal to the principal amount of the LIBOR Advance to which such Interest Period is to apply and for a period comparable to such Interest Period.

 “Liquidity Event of Default” means the occurrence of either (a) the Acceleration of all of the Equipment
Notes or (b) a United Bankruptcy Event. 
 “Liquidity Indemnitee” means (i) the Liquidity Provider,
(ii) the Guarantor, (iii) the directors, officers, employees and agents of the Liquidity Provider and the Guarantor, and (iv) the successors and permitted assigns of the persons described in clauses (i), (ii) and
(iii) inclusive. 
 “Liquidity Provider” has the meaning assigned to such term in the recital of parties to this
Agreement. 
 “Maximum Available Commitment” means, subject to the proviso contained in the third sentence of
Section 2.02(a), at any time of determination, (a) the Maximum Commitment at such time less (b) the aggregate amount of each Interest Advance outstanding at such time; provided that following a Provider Advance, a Special Termination
Advance, or a Final Advance, the Maximum Available Commitment shall be zero. 
 “Maximum Commitment” means initially
$48,285,460.44, as such amount may be reduced from time to time in accordance with Section 2.04(a). 
 “Non-Extension
Advance” means an Advance made pursuant to Section 2.02(b). 
 “Notice of Borrowing” has the
meaning assigned to such term in Section 2.02(e). 
 “Notice Date” has the meaning assigned to such term in
Section 2.10. 
  

 5 

 [Revolving Credit Agreement (2007-1A)] 
  

 “Notice of Replacement Subordination Agent” has the meaning assigned to such
term in Section 3.08. 
 “Performing Note Deficiency” means any time that less than 65% of the then aggregate
outstanding principal amount of all Equipment Notes are Performing Equipment Notes. 
 “Prospectus Supplement” means
the final Prospectus Supplement dated June 19, 2007 relating to the Certificates, as such Prospectus Supplement may be amended or supplemented. 
 “Provider Advance” means a Downgrade Advance or a Non-Extension Advance. 
 “Regulatory Change” has the meaning assigned to such term in Section 3.01. 
 “Replenishment
Amount” has the meaning assigned to such term in Section 2.06(b). 
 “Required Amount” means, for
any day, the sum of the aggregate amount of interest, calculated at the rate per annum equal to the Stated Interest Rate for the Class A Certificates, that would be payable on the Class A Certificates on each of the three successive
semi-annual Regular Distribution Dates immediately following such day or, if such day is a Regular Distribution Date, on such day and the succeeding two semi-annual Regular Distribution Dates, in each case calculated on the basis of the Pool Balance
of the Class A Certificates on such day and without regard to expected future distributions of principal on the Class A Certificates. 
 “Special Termination Advance” means an Advance made pursuant to Section 2.02(g). 
 “Special
Termination Notice” means the Notice of Termination substantially in the form of Annex VIII to this Agreement. 
 “Termination Date” means the earliest to occur of the following: (i) the Expiry Date; (ii) the date on which the Borrower delivers to the Liquidity Provider a certificate, signed by a Responsible Officer of
the Borrower, certifying that all of the Class A Certificates have been paid in full (or provision has been made for such payment in accordance with the Intercreditor Agreement and the Class A Trust Agreement) or are otherwise no longer
entitled to the benefits of this Agreement; (iii) the date on which the Borrower delivers to the Liquidity Provider a certificate, signed by a Responsible Officer of the Borrower, certifying that a Replacement Liquidity Facility has been
substituted for this Agreement in full pursuant to Section 3.5(e) of the Intercreditor Agreement; (iv) the fifth Business Day following the receipt by the Borrower of a Termination Notice or Special Termination Notice from the Liquidity
Provider pursuant to Section 6.01 hereof; and (v) the date on which no Advance is or may (including by reason of reinstatement as herein provided) become available for a Borrowing hereunder. 
 “Termination Notice” means the Notice of Termination substantially in the form of Annex V to this Agreement. 
 “Transferee” has the meaning assigned to such term in Section 7.08(b). 
 “Unapplied Downgrade Advance” means any Downgrade Advance other than an Applied Downgrade Advance. 
  

 6 

 [Revolving Credit Agreement (2007-1A)] 
  

 “Unapplied Non-Extension Advance” means any Non-Extension Advance other than
an Applied Non-Extension Advance. 
 “Unapplied Provider Advance” means any Provider Advance other than an Applied
Provider Advance. 
 “Unapplied Special Termination Advance” means any Special Termination Advance other than an
Applied Special Termination Advance. 
 “Unpaid Advance” has the meaning assigned to such term in Section 2.05.

 (b) Terms Defined in the Intercreditor Agreement. Capitalized terms not otherwise defined in this Agreement shall have the
respective meanings assigned to such terms in the Intercreditor Agreement. 
 ARTICLE II 
 AMOUNT AND TERMS OF THE COMMITMENT 
 Section 2.01 The Advances. The Liquidity Provider hereby irrevocably agrees, on the terms and conditions hereinafter set forth, to make Advances to the Borrower from time to time on any Business Day during the period from the
Effective Date until 1:00 p.m. (New York City time) on the Expiry Date (unless the obligations of the Liquidity Provider shall be earlier terminated in accordance with the terms of Section 2.04(b)) in an aggregate amount at any time
outstanding not to exceed the Maximum Commitment. 
 Section 2.02 Making the Advances. (a) Interest Advances shall be made
in one or more Borrowings by delivery to the Liquidity Provider of one or more written and completed Notices of Borrowing in substantially the form of Annex I attached hereto, signed by a Responsible Officer of the Borrower, in an amount not
exceeding the Maximum Available Commitment at such time and shall be used solely for the payment when due of interest on the Class A Certificates at the Stated Interest Rate therefor in accordance with Section 3.5(a) of the Intercreditor
Agreement. Each Interest Advance made hereunder shall automatically reduce the Maximum Available Commitment and the amount available to be borrowed hereunder by subsequent Advances by the amount of such Interest Advance (subject to reinstatement as
provided in the next sentence). Upon repayment to the Liquidity Provider in full or in part of the amount of any Interest Advance made pursuant to this Section 2.02(a), together with accrued interest thereon (as provided herein), the Maximum
Available Commitment shall be reinstated by an amount equal to the amount of the Interest Advance so repaid but not to exceed the Maximum Commitment; provided, however, that the Maximum Available Commitment shall not be so reinstated (x) at any
time if (i) a Liquidity Event of Default shall have occurred and be continuing and (ii) there is a Performing Note Deficiency or (y) at any time after the making of a Provider Advance, a Final Advance or a Special Termination Advance
or after any Interest Advance shall have been converted into a Final Advance. 
 (b) A Non-Extension Advance shall be made in a single
Borrowing if this Agreement is not extended in accordance with Section 3.5(d) of the Intercreditor Agreement (unless a Replacement Liquidity Facility to replace this Agreement shall have been delivered to the 

  

 7 

 [Revolving Credit Agreement (2007-1A)] 
  

 
Borrower as contemplated by said Section 3.5(d) within the time period specified in such Section) by delivery to the Liquidity Provider of a written and
completed Notice of Borrowing in substantially the form of Annex II attached hereto, signed by a Responsible Officer of the Borrower, in an amount equal to the Maximum Available Commitment at such time, and shall be used to fund the
Class A Cash Collateral Account in accordance with said Section 3.5(d) and Section 3.5(f) of the Intercreditor Agreement. 
 (c) A Downgrade Advance shall be made in a single Borrowing upon the occurrence of a Downgrade Event (as provided for in Section 3.5(c) of the Intercreditor Agreement) unless a Replacement Liquidity Facility to replace this Agreement
shall have been previously delivered to the Borrower in accordance with Section 3.5(c), by delivery to the Liquidity Provider of a written and completed Notice of Borrowing in substantially the form of Annex III attached hereto, signed by
a Responsible Officer of the Borrower, in an amount equal to the Maximum Available Commitment at such time, and shall be used solely to fund the Class A Cash Collateral Account in accordance with said Section 3.5(c) and Section 3.5(f)
of the Intercreditor Agreement. 
 (d) A Final Advance shall be made in a single Borrowing upon the receipt by the Borrower of a Termination
Notice from the Liquidity Provider pursuant to Section 6.01 hereof by delivery to the Liquidity Provider of a written and completed Notice of Borrowing in substantially the form of Annex IV attached hereto, signed by a Responsible Officer
of the Borrower, in an amount equal to the Maximum Available Commitment at such time, and shall be used solely to fund the Class A Cash Collateral Account (in accordance with Sections 3.5(f) and 3.5(i) of the Intercreditor Agreement).

 (e) Each Borrowing shall be made on notice in writing (a “Notice of Borrowing”) in substantially the form required
by Section 2.02(a), 2.02(b), 2.02(c), 2.02(d) or 2.02 (g), as the case may be, given by the Borrower to the Liquidity Provider. Each Notice of Borrowing shall be effective upon delivery of a copy thereof to the Liquidity Provider’s office
at the address specified in Section 7.02. If a Notice of Borrowing is delivered by the Borrower in respect of any Borrowing no later than 1:00 p.m. (New York City time) on a Business Day, upon satisfaction of the conditions precedent set
forth in Section 4.02 with respect to a requested Borrowing, the Liquidity Provider shall make available to the Borrower, in accordance with its payment instructions, the amount of such Borrowing in U.S. dollars and immediately available funds,
before 4:00 p.m. (New York City time) on such Business Day or on such later Business Day specified in such Notice of Borrowing. If a Notice of Borrowing is delivered by the Borrower in respect of any Borrowing on a day that is not a Business
Day or after 1:00 p.m. (New York City time) on a Business Day, upon satisfaction of the conditions precedent set forth in Section 4.02 with respect to a requested Borrowing, the Liquidity Provider shall make available to the Borrower, in
accordance with its payment instructions, the amount of such Borrowing in U.S. dollars and in immediately available funds, before 12:00 Noon (New York City time) on the first Business Day next following the day of receipt of such Notice of Borrowing
or on such later Business Day specified by the Borrower in such Notice of Borrowing. Payments of proceeds of a Borrowing shall be made by wire transfer of immediately available funds to the Borrower in accordance with such wire transfer instructions
as the Borrower shall furnish from time to time to the Liquidity Provider for such purpose. Each Notice of Borrowing shall be irrevocable and binding on the Borrower. 
  

 8 

 [Revolving Credit Agreement (2007-1A)] 
  

 (f) Upon the making of any Advance requested pursuant to a Notice of Borrowing, in accordance with
the Borrower’s payment instructions, the Liquidity Provider shall be fully discharged of its obligation hereunder with respect to such Notice of Borrowing, and the Liquidity Provider shall not thereafter be obligated to make any further
Advances hereunder in respect of such Notice of Borrowing to the Borrower or to any other Person. If the Liquidity Provider makes an Advance requested pursuant to a Notice of Borrowing before 12:00 Noon (New York City time) on the second Business
Day after the date of payment specified in Section 2.02(e), the Liquidity Provider shall have fully discharged its obligations hereunder with respect to such Advance and an event of default shall not have occurred hereunder. Following the
making of any Advance pursuant to Section 2.02(b), (c), (d) or (g) hereof to fund the Class A Cash Collateral Account, the Liquidity Provider shall have no interest in or rights to the Class A Cash Collateral Account, the
funds constituting such Advance or any other amounts from time to time on deposit in the Class A Cash Collateral Account; provided that the foregoing shall not affect or impair the obligations of the Subordination Agent to make the
distributions contemplated by Section 3.5(e) or (f) of the Intercreditor Agreement, and provided further, that the foregoing shall not affect or impair the rights of the Liquidity Provider to provide written instructions with
respect to the investment and reinvestment of amounts in the Cash Collateral Accounts to the extent provided in Section 2.2(b) of the Intercreditor Agreement. By paying to the Borrower proceeds of Advances requested by the Borrower in
accordance with the provisions of this Agreement, the Liquidity Provider makes no representation as to, and assumes no responsibility for, the correctness or sufficiency for any purpose of the amount of the Advances so made and requested.

 (g) A “Special Termination Advance” shall be made in a single Borrowing upon the receipt by the Borrower of a Special
Termination Notice from the Liquidity Provider pursuant to Section 6.01(b), by delivery to the Liquidity Provider of a written and completed Notice of Borrowing in substantially the form of Annex VII, signed by a Responsible Officer of the
Borrower, in an amount equal to the Maximum Available Commitment at such time, and shall be used solely to fund the Class A Cash Collateral Account (in accordance with Section 3.5(f) and Section 3.5(k) of the Intercreditor Agreement).

 Section 2.03 Fees. The Borrower agrees to pay to the Liquidity Provider the fees set forth in the Fee Letter applicable to
this Agreement. 
 Section 2.04 Automatic Reductions and Termination of the Maximum Commitment. 
 (a) Automatic Reduction. Promptly following each date on which the Required Amount is reduced as a result of a reduction in the Pool Balance of the
Class A Certificates or otherwise, the Maximum Commitment shall automatically be reduced to an amount equal to such reduced Required Amount (as calculated by the Borrower). The Borrower shall give notice of any such automatic reduction of the
Maximum Commitment to the Liquidity Provider within two Business Days thereof. The failure by the Borrower to furnish any such notice shall not affect such automatic reduction of the Maximum Commitment. 
 (b) Termination. Upon the making of any Provider Advance, or the Special Termination Advance, or the making of or conversion to a Final Advance
hereunder or the occurrence of the Termination Date, the obligation of the Liquidity Provider to make further Advances hereunder shall automatically and irrevocably terminate, and the Borrower shall not be entitled to request any further Borrowing
hereunder. 
  

 9 

 [Revolving Credit Agreement (2007-1A)] 
  

 Section 2.05 Repayments of Interest Advances , the Special Termination Advance or the Final
Advance. Subject to Sections 2.06, 2.07 and 2.09 hereof, the Borrower hereby agrees, without notice of an Advance or demand for repayment from the Liquidity Provider (which notice and demand are hereby waived by the Borrower), to pay, or to
cause to be paid, to the Liquidity Provider on each date on which the Liquidity Provider shall make an Interest Advance, the Special Termination Advance or the Final Advance, an amount equal to (a) the amount of such Advance (any such Advance,
until repaid, is referred to herein as an “Unpaid Advance”) (if multiple Interest Advances are outstanding any such repayment to be applied in the order in which such Interest Advances have been made, starting with the
earliest), plus (b) interest on the amount of each such Unpaid Advance as provided in Section 3.07 hereof; provided that if (i) the Liquidity Provider shall make a Provider Advance at any time after making one or more Interest
Advances which shall not have been repaid in accordance with this Section 2.05 or (ii) this Liquidity Facility shall become a Downgraded Facility or Non-Extended Facility at any time when unreimbursed Interest Advances have reduced the
Maximum Available Commitment to zero, then such Interest Advances shall cease to constitute Unpaid Advances and shall be deemed to have been changed into an Applied Downgrade Advance or an Applied Non-Extension Advance, as the case may be, for all
purposes of this Agreement (including, without limitation, for the purpose of determining when such Interest Advance is required to be repaid to the Liquidity Provider in accordance with Section 2.06 and for the purposes of
Section 2.06(b)); provided, further, that amounts in respect of a Special Termination Advance withdrawn from the Class A Cash Collateral Account for the purpose of paying interest on the Class A Certificates in
accordance with Section 3.5(f) of the Intercreditor Agreement (the amount of any such withdrawal being an “Applied Special Termination Advance”) shall thereafter (subject to Section 2.06(b)) be treated as an Interest
Advance under this Agreement for purposes of determining the Applicable Liquidity Rate for interest payable thereon; and provided, further, that if, following the making of a Special Termination Advance, the Liquidity Provider delivers
a Termination Notice to the Borrower pursuant to Section 6.01(a), such Special Termination Advance shall thereafter be converted to and treated as a Final Advance under this Agreement for purposes of determining the Applicable Liquidity Rate
for interest payable thereon and the obligation for repayment thereof and as an Applied Special Termination Advance for purposes of Section 2.6(c) of the Intercreditor Agreement. The Borrower and the Liquidity Provider agree that the repayment
in full of each Interest Advance, Special Termination Advance and Final Advance on the date such Advance is made is intended to be a contemporaneous exchange for new value given to the Borrower by the Liquidity Provider. 
 Section 2.06 Repayments of Provider Advances. (a) Amounts advanced hereunder in respect of a Provider Advance shall be deposited in the
Class A Cash Collateral Account, invested and withdrawn from the Class A Cash Collateral Account as set forth in Sections 3.5(c), (d), (e) and (f) of the Intercreditor Agreement. Subject to Sections 2.07 and 2.09, the
Borrower agrees to pay to the Liquidity Provider, on each Regular Distribution Date, commencing on the first Regular Distribution Date after the making of a Provider Advance, interest on the principal amount of any such Provider Advance as provided
in Section 3.07; provided, however, that amounts in respect of a Provider Advance withdrawn from the Class A Cash Collateral Account for the purpose of paying interest on the Class A Certificates in accordance with
Section 3.5(f) of 

  

 10 

 [Revolving Credit Agreement (2007-1A)] 
  

 
the Intercreditor Agreement (the amount of any such withdrawal being (y) in the case of a Downgrade Advance, an “Applied Downgrade
Advance” and (z) in the case of a Non-Extension Advance, an “Applied Non-Extension Advance” and, together with an Applied Downgrade Advance, an “Applied Provider Advance”) shall
thereafter (subject to Section 2.06(b)) be treated as an Interest Advance under this Agreement for purposes of determining the Applicable Liquidity Rate for interest payable thereon and the dates on which such interest is payable; provided
further, however, that if, following the making of a Provider Advance, the Liquidity Provider delivers a Termination Notice to the Borrower pursuant to Section 6.01 hereof, such Provider Advance shall thereafter be converted to and treated as a
Final Advance under this Agreement for purposes of determining the Applicable Liquidity Rate for interest payable thereon and the obligation for repayment thereof and as an Applied Downgrade Advance or Applied Non-Extension Advance, as the case may
be, for the purposes of Section 2.6(c) of the Intercreditor Agreement. Subject to Sections 2.07 and 2.09 hereof, immediately upon the withdrawal of any amounts from the Class A Cash Collateral Account on account of a reduction in the
Required Amount, the Borrower shall repay to the Liquidity Provider a portion of the Provider Advances in a principal amount equal to the amount of such reduction, plus interest on the principal amount prepaid as provided in Section 3.07
hereof. 
 (b) At any time when an Applied Provider Advance (or any portion thereof) is outstanding, upon the deposit in the Class A
Cash Collateral Account of any amount pursuant to clause “fourth” of Section 3.2 of the Intercreditor Agreement (any such amount being a “Replenishment Amount”) for the purpose of replenishing or
increasing the balance thereof up to the amount of the Required Amount at such time, (i) the aggregate outstanding principal amount of all Applied Provider Advances (and of Provider Advances treated as an Interest Advance for purposes of
determining the Applicable Liquidity Rate for interest payable thereon) shall be automatically reduced by the amount of such Replenishment Amount (if multiple Applied Provider Advances are outstanding, such Replenishment Amount to be applied in the
order in which such Applied Provider Advances have been made, starting with the earliest) and (ii) the aggregate outstanding principal amount of all Unapplied Provider Advances shall be automatically increased by the amount of such
Replenishment Amount. 
 (c) Upon the provision of a Replacement Liquidity Facility in replacement of this Agreement in accordance with
Section 3.5(e) of the Intercreditor Agreement, amounts remaining on deposit in the Class A Cash Collateral Account after giving effect to any Applied Provider Advance or Applied Special Termination Advance on the date of such replacement
shall be reimbursed to the replaced Liquidity Provider, but only to the extent such amounts are necessary to repay in full to the replaced Liquidity Provider all amounts owing to it hereunder. 
 Section 2.07 Payments to the Liquidity Provider Under the Intercreditor Agreement. In order to provide for payment or repayment to the
Liquidity Provider of any amounts hereunder, the Intercreditor Agreement provides that amounts available and referred to in Articles II and III of the Intercreditor Agreement, to the extent payable to the Liquidity Provider pursuant to the
terms of the Intercreditor Agreement (including, without limitation, Section 3.5(f) of the Intercreditor Agreement), shall be paid to the Liquidity Provider in accordance with the terms thereof. Amounts so paid to, and not required to be
returned by, the Liquidity Provider shall be applied by the Liquidity Provider to Liquidity Obligations then due and payable in accordance with the Intercreditor Agreement and shall discharge in full the corresponding obligations of the Borrower
hereunder (or, if not provided for in the Intercreditor Agreement, then in such manner as the Liquidity Provider shall deem appropriate). 
  

 11 

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 Section 2.08 Book Entries. The Liquidity Provider shall maintain in accordance with its
usual practice an account or accounts evidencing the indebtedness of the Borrower resulting from Advances made from time to time and the amounts of principal and interest payable hereunder and paid from time to time in respect thereof; provided,
however, that the failure by the Liquidity Provider to maintain such account or accounts shall not affect the obligations of the Borrower in respect of Advances. 
 Section 2.09 Payments from Available Funds Only. All payments to be made by the Borrower under this Agreement, including, without limitation, Sections 7.05 and 7.07, shall be made only from the amounts
that constitute Scheduled Payments, Special Payments or payments under the Fee Letter and Section 7.1 of the Participation Agreements and only to the extent that the Borrower shall have sufficient income or proceeds therefrom to enable the
Borrower to make payments in accordance with the terms hereof after giving effect to the priority of payments provisions set forth in the Intercreditor Agreement. The Liquidity Provider agrees that it will look solely to such amounts in respect of
payments to be made by the Borrower hereunder to the extent available for distribution to it as provided in the Intercreditor Agreement and this Agreement and that the Borrower, in its individual capacity, is not personally liable to it for any
amounts payable or liability under this Agreement except as expressly provided in this Agreement, the Intercreditor Agreement or any Participation Agreement. Amounts on deposit in the Class A Cash Collateral Account shall be available to the
Borrower to make payments under this Agreement only to the extent and for the purposes expressly contemplated in Section 3.5(f) of the Intercreditor Agreement. 
 Section 2.10 Extension of the Expiry Date; Non-Extension Advance. If the Liquidity Provider advises the Borrower before the 25th day prior to the immediately following anniversary date of the Closing Date
(the “Notice Date”) that its obligation to make Advances hereunder shall not be so extended beyond such anniversary date (and if the Liquidity Provider shall not have been replaced in accordance with Section 3.5(e) of the
Intercreditor Agreement), the Borrower shall be entitled on and after the Notice Date (but prior to such anniversary date) to request a Non-Extension Advance in accordance with Section 2.02(b) hereof and Section 3.5(d) of the Intercreditor
Agreement. 
 ARTICLE III 
 OBLIGATIONS OF THE BORROWER 
 Section 3.01 Increased Costs. The Borrower shall pay to the Liquidity Provider
from time to time such amounts as may be necessary to compensate the Liquidity Provider for any increased costs incurred by the Liquidity Provider which are attributable to its making or maintaining any Advances hereunder or its obligation to make
any such Advances hereunder, or any reduction in any amount receivable by the Liquidity Provider under this Agreement or the Intercreditor Agreement in respect of any such Advances or such obligation (such increases in costs and reductions in
amounts receivable being herein called “Additional Costs”), resulting from any change after the date of this Agreement in U.S. federal, state, municipal, or foreign 

  

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laws or regulations (including Regulation D of the Board of Governors of the Federal Reserve System), or the adoption or making after the date of this
Agreement of any interpretations, directives, or requirements applying to a class of banks including the Liquidity Provider under any U.S. federal, state, municipal, or any foreign laws or regulations (whether or not having the force of law) by any
court, central bank or monetary authority charged with the interpretation or administration thereof (a “Regulatory Change”), which: (1) changes the basis of taxation of any amounts payable to the Liquidity Provider under
this Agreement in respect of any such Advances or such obligation (other than with respect to Excluded Taxes or Indemnified Taxes); or (2) imposes or modifies any reserve, special deposit, compulsory loan or similar requirements relating to any
extensions of credit or other assets of, or any deposits with other liabilities of, the Liquidity Provider (including any such Advances or such obligation or any deposits referred to in the definition of LIBOR Rate or related definitions). The
Liquidity Provider agrees to use reasonable efforts (consistent with its internal policies and applicable legal and regulatory restrictions) to change the jurisdiction of its Lending Office if making such change would avoid the need for, or reduce
the amount of, any amount payable under this Section that may thereafter accrue and would not, in the reasonable judgment of the Liquidity Provider, be otherwise disadvantageous to the Liquidity Provider. 
 The Liquidity Provider will notify the Borrower of any event occurring after the date of this Agreement that will entitle the Liquidity Provider to
compensation pursuant to this Section 3.01 as promptly as practicable after it obtains knowledge thereof and determines to request such compensation, which notice shall describe in reasonable detail the calculation of the amounts owed under
this Section; provided, that if the Liquidity Provider fails to give such notice within 180 days after it obtains such knowledge, the Liquidity Provider shall, with respect to any costs resulting from such event, only be entitled to payment under
this Section 3.01 for costs incurred from and after the date 180 days prior to the date the Liquidity Provider does give such notice. Determinations by the Liquidity Provider for purposes of this Section 3.01 of the effect of any
Regulatory Change on its costs of making or maintaining Advances or on amounts receivable by it in respect of Advances, and of the additional amounts required to compensate the Liquidity Provider in respect of any Additional Costs, shall be prima
facie evidence of the amount owed under this Section. 
 Notwithstanding the preceding two paragraphs, the Liquidity Provider and the
Subordination Agent agree that (i) the initial Liquidity Provider and (ii) any permitted assignee or participant of the initial Liquidity Provider which is not a bank, shall not be entitled to the benefits of the preceding two paragraphs
(but without limiting the provisions of Section 7.08 hereof). 
 Section 3.02 Capital Adequacy. If (1) the adoption,
after the date hereof, of any applicable governmental law, rule or regulation regarding capital adequacy, (2) any change, after the date hereof, in the interpretation or administration of any such law, rule or regulation by any central bank or
other governmental authority charged with the interpretation or administration thereof or (3) compliance by the Liquidity Provider or any corporation or bank controlling the Liquidity Provider with any applicable guideline or request of general
applicability, issued after the date hereof, by any central bank or other governmental authority (whether or not having the force of law) that constitutes a change of the nature described in clause (2), has the effect of requiring an increase
in the amount of capital required to be maintained by the Liquidity 

  

 13 

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Provider or any corporation controlling the Liquidity Provider and such increase is based upon the Liquidity Provider’s obligations hereunder (including
funded obligations) and other similar obligations, the Borrower shall, subject to the provisions of the next paragraph, pay to the Liquidity Provider from time to time such additional amount or amounts as are necessary to compensate the Liquidity
Provider for such portion of such increase as shall be reasonably allocable to the Liquidity Provider’s obligations to the Borrower hereunder. 
 The Liquidity Provider will notify the Borrower of any event occurring after the date of this Agreement that will entitle the Liquidity Provider to compensation pursuant to this Section 3.02 as promptly as practicable after it obtains
knowledge thereof and determines to request such compensation, which notice shall describe in reasonable detail the calculation of the amounts owed under this Section; provided, that if the Liquidity Provider fails to give such notice within 180
days after it obtains such knowledge, the Liquidity Provider shall, with respect to any costs resulting from such event, only be entitled to payment under this Section 3.02 for costs incurred from and after the date 180 days prior to the date
the Liquidity Provider does give such notice. Determinations by the Liquidity Provider for purposes of this Section 3.02 of the effect of any increase in the amount of capital required to be maintained by the Liquidity Provider and of the
amount allocable to the Liquidity Provider’s obligations to the Borrower hereunder shall be prima facie evidence of the amounts owed under this Section, absent manifest error. 
 Notwithstanding the preceding two paragraphs, the Liquidity Provider and the Subordination Agent agree that (i) the initial Liquidity Provider and
(ii) any permitted assignee or participant of the initial Liquidity Provider which is not a bank, shall not be entitled to the benefits of the preceding two paragraphs (but without limiting the provisions of Section 7.08 hereof).

 Section 3.03 Payments Free of Deductions. (a) Unless required by applicable law, all payments made by the Borrower under
this Agreement shall be made free and clear of, and without reduction for or on account of, any present or future Taxes of any nature whatsoever now or hereafter imposed, levied, collected, withheld or assessed. If any Taxes are required to be
withheld from any amounts payable to the Liquidity Provider under this Agreement, (i) the Borrower shall within the time prescribed therefor by applicable law pay to the appropriate governmental or taxing authority the full amount of any such
Taxes (and any additional Taxes in respect of the additional amounts payable under clause (ii) hereof) and make such reports or returns in connection therewith at the time or times and in the manner prescribed by applicable law, and
(ii) in the case of Taxes, other than Excluded Taxes (such non-excluded Taxes being referred to herein, collectively, as “Indemnified Taxes” and each, individually, as a “Indemnified Tax”), the
amounts so payable to the Liquidity Provider shall be increased to the extent necessary to yield to the Liquidity Provider (after payment of all Taxes) interest or any other such amounts payable under this Agreement at the rates or in the amounts
specified in this Agreement. The Liquidity Provider agrees to use reasonable efforts (consistent with its internal policy and legal and regulatory restrictions) to change the jurisdiction of its Lending Office if making such change would avoid the
need for, or reduce the amount of, any such additional amounts that may thereafter accrue and would not, in the reasonable judgment of the Liquidity Provider, be otherwise disadvantageous to the Liquidity Provider. From time to time upon the
reasonable request of the Borrower, the Liquidity Provider agrees to provide to the Borrower 

  

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such original Internal Revenue Service Forms (including W-8BEN, W-8ECI or W-9), as appropriate with respect to Liquidity Provider, or any successor or other
form prescribed by the Internal Revenue Service, certifying as to any available exemption from or reduction in the rate of United States withholding tax on payments pursuant to this Agreement. Within 30 days after the date of each payment hereunder,
the Borrower shall furnish to the Liquidity Provider the original or a certified copy of (or other documentary evidence of) the payment of the Indemnified Taxes applicable to such payment. 
 (b) Unless required by applicable law, all payments (including, without limitation, Advances) made by the Liquidity Provider under this Agreement shall
be made free and clear of, and without reduction for or on account of, any Taxes. If any Taxes are required to be withheld or deducted from any amounts payable to the Borrower under this Agreement, the Liquidity Provider shall (i) within the
time prescribed therefor by applicable law pay to the appropriate governmental or taxing authority the full amount of any such Taxes (and any additional Taxes in respect of the additional amounts payable under clause (ii) hereof) and make such
reports or returns in connection therewith at the time or times and in the manner prescribed by applicable law, and (ii) pay to the Borrower an additional amount which (after deduction of all such Taxes) will be sufficient to yield to the
Borrower the full amount which would have been received by it had no such withholding or deduction been made. Within 30 days after the date of each payment hereunder, the Liquidity Provider shall furnish to the Borrower the original or a certified
copy of (or other documentary evidence of) the payment of the Taxes applicable to such payment. 
 (c) If any exemption from, or reduction in
the rate of, any Taxes is reasonably available to the Borrower to establish that payments under this Agreement are exempt from (or entitled to a reduced rate of) tax, the Borrower shall deliver to the Liquidity Provider such form or forms and such
other evidence of the eligibility of the Borrower for such exemption or reduction as the Liquidity Provider may reasonably identify to the Borrower as being required as a condition to exemption from, or reduction in the rate of, any Taxes.

 Section 3.04 Payments. The Borrower shall make or cause to be made each payment to the Liquidity Provider under this Agreement
so as to cause the same to be received by the Liquidity Provider not later than 1:00 P.M. (New York City time) on the day when due. The Borrower shall make all such payments in lawful money of the United States of America, to the Liquidity
Provider in immediately available funds, by wire transfer to the account of Morgan Stanley Senior Funding, Inc. at Citibank, N.A. ABA No. 021000089, Account No. 406-99-776, Reference: United Air Lines 2007-1 EETC, or to such other account
as the Liquidity Provider may from time to time direct the Borrower. 
 Section 3.05 Computations. All computations of interest
based on the Base Rate shall be made on the basis of a year of 365 or 366 days, as the case may be, and all computations of interest based on the LIBOR Rate shall be made on the basis of a year of 360 days, in each case for the actual number of days
(including the first day but excluding the last day) occurring in the period for which such interest is payable. 
 Section 3.06
Payment on Non-Business Days. Whenever any payment to be made hereunder to the Liquidity Provider shall be stated to be due on a day other than a Business Day, such payment shall be made on the next succeeding Business Day (and if so made,
shall be deemed to have been made when due). 
  

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 [Revolving Credit Agreement (2007-1A)] 
  

 Section 3.07 Interest. (a) Subject to Section 2.09, the Borrower shall pay, or
shall cause to be paid, without duplication, interest on (i) the unpaid principal amount of each Advance from and including the date of such Advance (or, in the case of an Applied Provider Advance or Applied Special Termination Advance, from
and including the date on which the amount thereof was withdrawn from the Class A Cash Collateral Account to pay interest on the Class A Certificates) to but excluding the date such principal amount shall be paid in full (or, in the case
of an Applied Provider Advance or Applied Special Termination Advance, the date on which the Class A Cash Collateral Account is fully replenished in respect of such Advance) and (ii) any other amount due hereunder (whether fees,
commissions, expenses or other amounts or, to the extent permitted by law, installments of interest on Advances or any such other amount) that is not paid when due (whether at stated maturity, by acceleration or otherwise) from and including the due
date thereof to but excluding the date such amount is paid in full, in each such case, at a fluctuating interest rate per annum for each day equal to the Applicable Liquidity Rate (as defined below) for such Advance or such other amount, as the case
may be, as in effect for such day, but in no event at a rate per annum greater than the maximum rate permitted by applicable law; provided, however, that, if at any time the otherwise applicable interest rate as set forth in this
Section 3.07 shall exceed the maximum rate permitted by applicable law, then any subsequent reduction in such interest rate will not reduce the rate of interest payable pursuant to this Section 3.07 below the maximum rate permitted by
applicable law until the total amount of interest accrued equals the amount of interest that would have accrued if such otherwise applicable interest rate as set forth in this Section 3.07 had at all times been in effect. 
 (b) Except as provided in clause (e) below, each Advance will be either a Base Rate Advance or a LIBOR Advance as provided in this Section. Each
such Advance will be a Base Rate Advance for the period from the date of its borrowing to (but excluding) the third Business Day following the Liquidity Provider’s receipt of the Notice of Borrowing for such Advance. Thereafter, such Advance
shall be a LIBOR Advance. 
 (c) Each LIBOR Advance shall bear interest during each Interest Period at a rate per annum equal to the LIBOR
Rate for such Interest Period plus the Applicable Margin for such LIBOR Advance, payable in arrears on the last day of such Interest Period and, in the event of the payment of principal of such LIBOR Advance on a day other than such last day, on the
date of such payment (to the extent of interest accrued on the amount of principal repaid). 
 (d) Each Base Rate Advance shall bear interest
at a rate per annum equal to the Base Rate plus the Applicable Margin for such Base Rate Advance, payable in arrears on each Regular Distribution Date and, in the event of the payment of principal of such Base Rate Advance on a day other than a
Regular Distribution Date, on the date of such payment (to the extent of interest accrued on the amount of principal repaid). 
 (e) Each
outstanding Unapplied Non-Extension Advance, Unapplied Downgrade Advance and Unapplied Special Termination Advance shall bear interest in an amount equal to the Investment Earnings on amounts on deposit in the Class A Cash Collateral Account
plus the Applicable Margin for such Unapplied Non-Extension Advance, Unapplied Downgrade Advance 

  

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 [Revolving Credit Agreement (2007-1A)] 
  

 
or Unapplied Special Termination Advance, as applicable, on the amount of such Unapplied Non-Extension Advance, Unapplied Downgrade Advance or Unapplied
Special Termination Advance from time to time, payable in arrears on each Regular Distribution Date. 
 (f) Each amount not paid when due
hereunder (whether fees, commissions, expenses or other amounts or, to the extent permitted by applicable law, installments of interest on Advances but excluding Advances) shall bear interest at a rate per annum equal to the Base Rate plus
2.00% per annum until paid. 
 (g) Each change in the Base Rate shall become effective immediately. The rates of interest specified in
this Section 3.07 with respect to any Advance or other amount shall be referred to as the “Applicable Liquidity Rate”. 
 Section 3.08 Replacement of Borrower. From time to time and subject to the successor Borrower’s meeting the eligibility requirements set forth in Section 6.9 of the Intercreditor Agreement applicable to the
Subordination Agent, upon the effective date and time specified in a written and completed Notice of Replacement Subordination Agent in substantially the form of Annex VI attached hereto (a “Notice of Replacement Subordination
Agent”) delivered to the Liquidity Provider by the then Borrower, the successor Borrower designated therein shall be substituted for the Borrower for all purposes hereunder. 
 Section 3.09 Funding Loss Indemnification. The Borrower shall pay to the Liquidity Provider, upon the request of the Liquidity Provider, such
amount or amounts as shall be sufficient (in the reasonable opinion of the Liquidity Provider) to compensate it for any loss, cost, or expense incurred by reason of the liquidation or redeployment of deposits or other funds acquired by the Liquidity
Provider to fund or maintain any LIBOR Advance (but excluding loss of anticipated profits) incurred as a result of: 
 (1) Any
repayment of a LIBOR Advance on a date other than the last day of the Interest Period for such Advance; or 
 (2) Any failure
by the Borrower to borrow a LIBOR Advance on the date for borrowing specified in the relevant notice under Section 2.02. 
 Section 3.10 Illegality. Notwithstanding any other provision in this Agreement, if any change in any applicable law, rule or regulation, or any change in the interpretation or administration thereof by any governmental
authority, central bank or comparable agency charged with the interpretation or administration thereof, or compliance by the Liquidity Provider (or its Lending Office) with any request or directive (whether or not having the force of law) of any
such authority, central bank or comparable agency shall make it unlawful or impossible for the Liquidity Provider (or its Lending Office) to maintain or fund its LIBOR Advances, then upon notice to the Borrower by the Liquidity Provider, the
outstanding principal amount of the LIBOR Advances shall be converted to Base Rate Advances (a) immediately upon demand of the Liquidity Provider, if such change or compliance with such request, in the judgment of the Liquidity Provider,
requires immediate repayment; or (b) at the expiration of the last Interest Period to expire before the effective date of any such change or request. The Liquidity Provider agrees to use reasonable efforts (consistent with its internal policies
and 

  

 17 

 [Revolving Credit Agreement (2007-1A)] 
  

 
applicable legal and regulatory restrictions) to change the jurisdiction of its Lending Office if making such change would avoid or cure the aforesaid
illegality and would not, in the reasonable judgment of the Liquidity Provider, be otherwise disadvantageous to the Liquidity Provider. 
 ARTICLE IV 
 CONDITIONS PRECEDENT 
 Section 4.01 Conditions Precedent to Effectiveness of Section 2.01. Section 2.01 of this Agreement shall become effective on and as of the first date (the “Effective
Date”) on which the following conditions precedent have been satisfied or waived: 
 (a) The Liquidity Provider shall have
received each of the following, and in the case of each document delivered pursuant to paragraphs (i), (ii) and (iii), each in form and substance satisfactory to the Liquidity Provider: 
 (i) This Agreement duly executed on behalf of the Borrower and the Fee Letter applicable to this Agreement duly executed on behalf of the Borrower;

 (ii) The Intercreditor Agreement duly executed on behalf of each of the parties thereto (other than the Liquidity Provider); 

(iii) Fully executed copies of each of the Operative Agreements executed and delivered on or before the Closing Date (other than this Agreement, the
Guarantee Agreement, the Fee Letter and the Intercreditor Agreement); 
 (iv) A copy of the Prospectus Supplement and specimen copies of the
Class A Certificates; 
 (v) An executed copy of each document, instrument, certificate and opinion delivered on or before the Closing
Date pursuant to the Class A Trust Agreement, the Note Purchase Agreement, the Intercreditor Agreement and the other Operative Agreements (in the case of each such opinion, other than the opinion of counsel for the Underwriters, either
addressed to the Liquidity Provider or accompanied by a letter from the counsel rendering such opinion to the effect that the Liquidity Provider is entitled to rely on such opinion as of its date as if it were addressed to the Liquidity Provider);

 (vi) Evidence that there shall have been made and shall be in full force and effect, all filings, recordings and/or registrations, and
there shall have been given or taken any notice or other similar action as may be reasonably necessary or, to the extent reasonably requested by the Liquidity Provider, reasonably advisable, in order to establish, perfect, protect and preserve the
right, title and interest, remedies, powers, privileges, liens and security interests of, or for the benefit of, the Trustees, the Borrower and the Liquidity Provider created by the Operative Agreements executed and delivered on or before the
Closing Date; 
 (vii) An agreement from United, pursuant to which United agrees to provide copies of quarterly financial statements and
audited annual financial statements to the Liquidity Provider provided that so long as United is subject to the reporting requirements of the Securities Exchange Act of 1934, such information will be considered provided if it is made available on
the EDGAR database of the Securities and Exchange Commission; 
  

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 [Revolving Credit Agreement (2007-1A)] 
  

 (viii) Legal opinions from (a) Morris, James, LLP, special counsel to the Borrower and
(b) Vedder, Price, Kaufman & Kammholz, P.C., special counsel to United, each in form and substance reasonably satisfactory to the Liquidity Provider; and 
 (ix) Such other documents, instruments, opinions and approvals pertaining to the transactions contemplated hereby or by the other Operative Agreements as the Liquidity Provider shall have reasonably requested.

 (b) The following statement shall be true on and as of the Effective Date: no event has occurred and is continuing, or would result from
the entering into of this Agreement or the making of any Advance, which constitutes a Liquidity Event of Default. 
 (c) The Liquidity
Provider shall have received payment in full of all fees and other sums required to be paid to or for the account of the Liquidity Provider on or prior to the Effective Date. 
 (d) All conditions precedent to the issuance of the Certificates under the Trust Agreements shall have been satisfied or waived and all conditions
precedent to the purchase of the Class A Certificates, the Class B Certificates and the Class C Certificates by the Underwriters under the Underwriting Agreement shall have been satisfied or waived. 
 (e) The Borrower shall have received a certificate, dated the date hereof, signed by a duly authorized representative of the Liquidity Provider,
certifying that all conditions precedent to the effectiveness of Section 2.01 have been satisfied or waived. 
 Section 4.02
Conditions Precedent to Borrowing. The obligation of the Liquidity Provider to make an Advance on the occasion of each Borrowing shall be subject to the conditions precedent that the Effective Date shall have occurred and, on or prior to the
date of such Borrowing, the Borrower shall have delivered a Notice of Borrowing which conforms to the terms and conditions of this Agreement and has been completed as may be required by the relevant form of the Notice of Borrowing for the type of
Advance requested. 
 ARTICLE V 
 COVENANTS 
 Section 5.01 Affirmative Covenants of the Borrower. So long as any Advance
shall remain unpaid or the Liquidity Provider shall have any Maximum Commitment hereunder or the Borrower shall have any obligation to pay any amount to the Liquidity Provider hereunder, the Borrower will, unless the Liquidity Provider shall
otherwise consent in writing: 
 (a) Performance of this and Other Agreements. Punctually pay or cause to be paid all amounts payable
by it under this Agreement and the other Operative Agreements and observe and perform in all material respects the conditions, covenants and requirements applicable to it contained in this Agreement and the other Operative Agreements. 
  

 19 

 [Revolving Credit Agreement (2007-1A)] 
  

 (b) Reporting Requirements. Furnish to the Liquidity Provider with reasonable promptness, such
information and data with respect to the transactions contemplated by the Operative Agreements as from time to time may be reasonably requested by the Liquidity Provider; and permit the Liquidity Provider, upon reasonable notice, to inspect the
Borrower’s books and records with respect to such transactions and to meet with officers and employees of the Borrower to discuss such transactions. 
 (c) Certain Operative Agreements. Furnish to the Liquidity Provider with reasonable promptness, such Operative Agreements entered into after the date hereof as from time to time may be reasonably requested by
the Liquidity Provider. 
 Section 5.02 Negative Covenants of the Borrower. So long as any Advance shall remain unpaid or the
Liquidity Provider shall have any Maximum Commitment hereunder or the Borrower shall have any obligation to pay any amount to the Liquidity Provider hereunder, the Borrower will not appoint or permit or suffer to be appointed any successor Borrower
without the prior written consent of the Liquidity Provider, which consent shall not be unreasonably withheld or delayed. 
 ARTICLE VI 
 LIQUIDITY EVENTS OF DEFAULT AND SPECIAL TERMINATION 
 Section 6.01 Liquidity Events of Default and Special Termination. (a) If (i) any Liquidity Event of Default has occurred and is
continuing and (ii) there is a Performing Note Deficiency, the Liquidity Provider may, in its discretion, deliver to the Borrower a Termination Notice, the effect of which shall be to cause (A) the obligation of the Liquidity Provider to
make Advances hereunder to expire on the fifth Business Day after the date on which such Termination Notice is received by the Borrower, (B) the Borrower to promptly request, and the Liquidity Provider to promptly make, a Final Advance in
accordance with Section 2.02(d) hereof and Section 3.5(i) of the Intercreditor Agreement, (C) all other outstanding Advances to be automatically converted into Final Advances for purposes of determining the Applicable Liquidity Rate
for interest payable thereon, and (D) subject to Sections 2.07 and 2.09 hereof, all Advances (including, without limitation, any Provider Advance and Applied Provider Advance), any accrued interest thereon and any other amounts outstanding
hereunder to become immediately due and payable to the Liquidity Provider. 
 (b) If the aggregate Pool Balance of the Class A
Certificates is greater than the aggregate outstanding principal amount of the Series A Equipment Notes (other than any Series A Equipment Notes previously sold or with respect to which the collateral securing such Series A Equipment Notes has been
disposed of) at any time during the 18-month period prior to July 2, 2022 the Liquidity Provider may, in its discretion, deliver to the Borrower a Special Termination Notice, the effect of which shall be to cause (i) the obligation of the
Liquidity Provider to make Advances hereunder to expire on the fifth Business Day after the date on which such Special Termination Notice is received by the Borrower, (ii) the Borrower to promptly request, and the Liquidity Provider to promptly
make, a Special Termination Advance in accordance with Section 2.02(g) and Section 3.5(k) of the Intercreditor Agreement, and (iii) subject to Sections 2.07 and 2.09, all Advances (including, without limitation, any Provider Advance
and Applied Provider Advance), any accrued interest thereon and any other amounts outstanding hereunder to become immediately due and payable to the Liquidity Provider. 
  

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 [Revolving Credit Agreement (2007-1A)] 
  

 ARTICLE VII 
 MISCELLANEOUS 
 Section 7.01 Amendments, Etc. No amendment or waiver of any provision of
this Agreement, nor consent to any departure by the Borrower therefrom, shall in any event be effective unless the same shall be in writing and signed by the Liquidity Provider, and, in the case of an amendment or of a waiver by the Borrower, the
Borrower, and then such waiver or consent shall be effective only in the specific instance and for the specific purpose for which given. 
 Section 7.02 Notices, Etc. Except as otherwise expressly provided herein, all notices and other communications provided for hereunder shall be in writing (including telecopier and mailed or delivered or sent by telecopier)
addressed to the applicable party at its address set forth below: 
 Borrower: 
 Wilmington Trust Company 
 Rodney Square North 
 1100 North Market Street 
 Wilmington, DE 19890-0001 
 Attention: Corporate Trust Administration 
 Telephone: (800) 733-8485 
 Fax: (302) 651-8882 
 with a copy to: 
 United Air Lines, Inc. 
 77 West Wacker Drive 
 Chicago, IL 60601 
 Attention: Stephen R. Lieberman, Vice President & Treasurer

 E-Mail: stephen.lieberman@united.com 
 Telephone: (312) 997-8000 
 Facsimile: (312) 997-8333; and 
 Paul R. Lovejoy, Senior Vice President, General
Counsel and Secretary 
 E-Mail:paul.lovejoy@united.com, 
 Telephone: (312) 997-8000 
 Facsimile: (312) 997-8333 
  

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 [Revolving Credit Agreement (2007-1A)] 
  

 Liquidity Provider: 
 Morgan Stanley Senior Funding, Inc. 
 1585 Broadway, 3rd Floor 
 New York, New York 10036 
 Attention: FID Collateral Manager 
 Telephone: (212) 761-0877 
 Fax: (212) 507-4949 
 with a copy to: 
 Morgan Stanley 
 1585 Broadway, 38th Floor 
 New York, NY 10036 
 Attention: Chief Legal Officer 
 Fax: (212) 507-4622 
 or to such other
address as shall be designated by such Person in a written notice to the others. All such notices and communications shall be effective (i) if given by telecopier, when transmitted to the telecopier number specified above with receipt confirmed
electronically, and received in legible form, (ii) if given by mail, five Business Days after being deposited in the mails addressed as specified above, and (iii) if given by other means, when delivered at the address specified above,
except that written notices to the Liquidity Provider pursuant to the provisions of Article II and Article III hereof shall not be effective until received by the Liquidity Provider. 
 Section 7.03 No Waiver; Remedies. No failure on the part of the Liquidity Provider to exercise, and no delay in exercising, any right under
this Agreement shall operate as a waiver thereof; nor shall any single or partial exercise of any right under this Agreement preclude any other or further exercise thereof or the exercise of any other right. The remedies herein provided are
cumulative and not exclusive of any remedies provided by law. 
 Section 7.04 Further Assurances. The Borrower agrees to do such
further acts and things and to execute and deliver to the Liquidity Provider such additional assignments, agreements, powers and instruments as the Liquidity Provider may reasonably require or deem advisable to carry into effect the purposes of this
Agreement and the other Operative Agreements or to better assure and confirm unto the Liquidity Provider its rights, powers and remedies hereunder and under the other Operative Agreements. 
 Section 7.05 Indemnification; Survival of Certain Provisions. The Liquidity Provider shall be indemnified hereunder to the extent and in the
manner described in Section 7.1 of the Participation Agreements. In addition, the Borrower agrees to indemnify, protect, defend and hold harmless the Liquidity Provider from, against and in respect of, and shall pay on demand, all Expenses of
any kind or nature whatsoever (other than any Expenses of the nature described in Section 3.01, 3.02 or 7.07 hereof or in the Fee Letter applicable to this Agreement (regardless of whether indemnified against pursuant to said Sections or in
such Fee Letter)), that may be imposed on, incurred by or asserted against any Liquidity Indemnitee, in any way relating to, 

  

 22 

 [Revolving Credit Agreement (2007-1A)] 
  

 
resulting from, or arising out of or in connection with any action, suit or proceeding by any third party against such Liquidity Indemnitee and relating to
this Agreement, the Fee Letter, the Intercreditor Agreement or any Participation Agreement; provided, however, that the Borrower shall not be required to indemnify, protect, defend and hold harmless any Liquidity Indemnitee in respect
of any Expense of such Liquidity Indemnitee to the extent such Expense is (i) attributable to the gross negligence or willful misconduct of such Liquidity Indemnitee or any other Liquidity Indemnitee, (ii) ordinary and usual operating
overhead expense, (iii) attributable to the failure by such Liquidity Indemnitee or any other Liquidity Indemnitee to perform or observe any agreement, covenant or condition on its part to be performed or observed in this Agreement, the
Intercreditor Agreement, the Fee Letter applicable to this Agreement or any other Operative Agreement to which it is a party; or (iv) a Tax. The indemnities contained in Section 7.1 of the Participation Agreements, and the provisions of
Sections 3.01, 3.02, 3.03, 3.09, 7.05 and 7.07 hereof, shall survive the termination of this Agreement. 
 Section 7.06
Liability of the Liquidity Provider. (a) Neither the Liquidity Provider nor any of its officers, employees, directors or Affiliates shall be liable or responsible for: (i) the use which may be made of the Advances or any acts or
omissions of the Borrower or any beneficiary or transferee in connection therewith; (ii) the validity, sufficiency or genuineness of documents, or of any endorsement thereon, even if such documents should prove to be in any or all respects
invalid, insufficient, fraudulent or forged; or (iii) the making of Advances by the Liquidity Provider against delivery of a Notice of Borrowing and other documents which do not comply with the terms hereof; provided, however,
that the Borrower shall have a claim against the Liquidity Provider, and the Liquidity Provider shall be liable to the Borrower, to the extent of any damages suffered by the Borrower which were the result of (A) the Liquidity Provider’s
willful misconduct or negligence in determining whether documents presented hereunder comply with the terms hereof, or (B) any breach by the Liquidity Provider of any of the terms of this Agreement or the Intercreditor Agreement, including, but
not limited to, the Liquidity Provider’s failure to make lawful payment hereunder after the delivery to it by the Borrower of a Notice of Borrowing strictly complying with the terms and conditions hereof. In no event, however, shall the
Liquidity Provider be liable on any theory of liability for any special, indirect, consequential or punitive damages (including, without limitation, any loss of profits, business or anticipated savings). 
 (b) Neither the Liquidity Provider nor any of its officers, employees, directors or Affiliates shall be liable or responsible in any respect for
(i) any error, omission, interruption or delay in transmission, dispatch or delivery of any message or advice, however transmitted, in connection with this Agreement or any Notice of Borrowing delivered hereunder, or (ii) any action,
inaction or omission which may be taken by it in good faith, absent willful misconduct or gross negligence (in which event the extent of the Liquidity Provider’s potential liability to the Borrower shall be limited as set forth in the
immediately preceding paragraph), in connection with this Agreement or any Notice of Borrowing. 
 Section 7.07 Costs, Expenses and
Taxes. The Borrower agrees to pay, or cause to be paid (A) on the Effective Date and on such later date or dates on which the Liquidity Provider shall make demand, all reasonable out-of-pocket costs and expenses (including, without
limitation, the reasonable fees and expenses of outside counsel for the Liquidity Provider) of the Liquidity Provider in connection with the preparation, negotiation, execution, delivery, filing and 

  

 23 

 [Revolving Credit Agreement (2007-1A)] 
  

 
recording of this Agreement, any other Operative Agreement and any other documents which may be delivered in connection with this Agreement and (B) on
demand, all reasonable costs and expenses (including reasonable counsel fees and expenses) of the Liquidity Provider in connection with (i) the enforcement of this Agreement or any other Operative Agreement, (ii) the modification or
amendment of, or supplement to, this Agreement or any other Operative Agreement or such other documents which may be delivered in connection herewith or therewith (whether or not the same shall become effective) or any waiver or consent thereunder
(whether or not the same shall become effective) or (iii) any action or proceeding relating to any order, injunction, or other process or decree restraining or seeking to restrain the Liquidity Provider from paying any amount under this
Agreement, the Intercreditor Agreement or any other Operative Agreement or otherwise affecting the application of funds in the Class A Cash Collateral Account. In addition, the Borrower shall pay any and all recording, stamp and other similar
taxes and fees payable or determined to be payable in connection with the execution, delivery, filing and recording of this Agreement, any other Operative Agreement and such other documents, and agrees to hold the Liquidity Provider harmless from
and against any and all liabilities with respect to or resulting from any delay in paying or omission to pay such taxes or fees. 
 Section 7.08 Binding Effect; Participations. (a) This Agreement shall be binding upon and inure to the benefit of the Borrower and the Liquidity Provider and their respective successors and assigns, except that neither the
Liquidity Provider (except as otherwise provided in this Section 7.08 and in Section 3.5(l) of the Intercreditor Agreement) nor (except as contemplated by Section 3.08) the Borrower shall have the right to assign its rights or
obligations hereunder or any interest herein without the prior written consent of the other party, subject to the requirements of Section 7.08(b). The Liquidity Provider may grant participations herein or in any of its rights hereunder
(including, without limitation, funded participations and participations in rights to receive interest payments hereunder) and under the other Operative Agreements to such Persons (other than United and its Affiliates) as the Liquidity Provider may
in its sole discretion select, subject to the requirements of Section 7.08(b). No such granting of participations by the Liquidity Provider, however, will relieve the Liquidity Provider of its obligations hereunder. In connection with any
participation or any proposed participation, the Liquidity Provider may disclose to the participant or the proposed participant any information that the Borrower is required to deliver or to disclose to the Liquidity Provider pursuant to this
Agreement. The Borrower acknowledges and agrees that the Liquidity Provider’s source of funds may derive in part from its participants. Accordingly, references in this Agreement and the other Operative Agreements to determinations, reserve and
capital adequacy requirements, increased costs, reduced receipts, additional amounts due pursuant to Section 3.03 and the like as they pertain to the Liquidity Provider shall be deemed also to include those of each of its participants that are
banks (subject, in each case, to the maximum amount that would have been incurred by or attributable to the Liquidity Provider directly if the Liquidity Provider, rather than the participant, had held the interest participated). 
 (b) If, pursuant to subsection (a) above, the Liquidity Provider sells any participation in this Agreement to any bank or other entity (each, a
“Transferee”), the Transferee shall not be entitled to receive any greater payment under Section 3.03 than the Liquidity Provider would have been entitled to receive with respect to the participation sold to such
Transferee. A Transferee shall not be entitled to the benefits of Section 3.03 unless the Borrower is notified of 

  

 24 

 [Revolving Credit Agreement (2007-1A)] 
  

 
the participation sold to such Transferee and such Transferee agrees, for the benefit of the Borrower, to comply with the certification requirements of
Section 3.03 as though it were the Liquidity Provider. Unless the Borrower has received forms or other documents reasonably satisfactory to it (and required by applicable law) indicating that payments hereunder are not subject to United States
federal withholding tax, the Borrower will withhold taxes as required by law from such payments at the applicable statutory rate. 
 (c)
Notwithstanding the other provisions of this Section 7.08, the Liquidity Provider may assign and pledge all or any portion of the Advances owing to it to any Federal Reserve Bank or the United States Treasury as collateral security pursuant to
Regulation A of the Board of Governors of the Federal Reserve System and any Operating Circular issued by such Federal Reserve Bank, provided that any payment in respect of such assigned Advances made by the Borrower to the Liquidity Provider in
accordance with the terms of this Agreement shall satisfy the Borrower’s obligations hereunder in respect of such assigned Advance to the extent of such payment. No such assignment shall release the Liquidity Provider from its obligations
hereunder. 
 Section 7.09 Severability. Any provision of this Agreement which is prohibited, unenforceable or not authorized in
any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition, unenforceability or non-authorization without invalidating the remaining provisions hereof or affecting the validity, enforceability or legality of
such provision in any other jurisdiction. 
 Section 7.10 GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK (WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW THEREOF (OTHER THAN SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK GENERAL OBLIGATIONS LAW)). 
 Section 7.11 Submission to Jurisdiction; Waiver of Jury Trial; Waiver of Immunity. (a) Each of the parties hereto hereby irrevocably and
unconditionally: 
 (i) submits for itself and its property in any legal action or proceeding relating to this Agreement or any other
Operative Agreement, or for recognition and enforcement of any judgment in respect hereof or thereof, to the nonexclusive general jurisdiction of the courts of the State of New York, the courts of the United States of America for the Southern
District of New York, and the appellate courts from any thereof; 
 (ii) consents that any such action or proceeding may be brought in such
courts, and waives any objection that it may now or hereafter have to the venue of any such action or proceeding in any such court or that such action or proceeding was brought in an inconvenient court and agrees not to plead or claim the same;

 (iii) agrees that service of process in any such action or proceeding may be effected by mailing a copy thereof by registered or certified
mail (or any substantially similar form of mail), postage prepaid, to each party hereto at its address set forth in Section 7.02 hereof, or at such other address of which the Liquidity Provider shall have been notified pursuant thereto; and

  

 25 

 [Revolving Credit Agreement (2007-1A)] 
  

 (iv) agrees that nothing herein shall affect the right to effect service of process in any other
manner permitted by law or shall limit the right to sue in any other jurisdiction. 
 (b) THE BORROWER AND THE LIQUIDITY PROVIDER EACH HEREBY
AGREE TO WAIVE THEIR RESPECTIVE RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF THIS AGREEMENT OR ANY DEALINGS BETWEEN THEM RELATING TO THE SUBJECT MATTER OF THIS AGREEMENT AND THE RELATIONSHIP THAT IS BEING
ESTABLISHED, including, without limitation, contract claims, tort claims, breach of duty claims and all other common law and statutory claims. The Borrower and the Liquidity Provider each warrant and represent that it has reviewed this waiver with
its legal counsel, and that it knowingly and voluntarily waives its jury trial rights following consultation with such legal counsel. THIS WAIVER IS IRREVOCABLE, AND CANNOT BE MODIFIED EITHER ORALLY OR IN WRITING, AND THIS WAIVER SHALL APPLY TO ANY
SUBSEQUENT AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO THIS AGREEMENT. 
 Section 7.12 Execution in Counterparts. This
Agreement may be executed in any number of counterparts and by different parties hereto on separate counterparts, each of which counterparts, when so executed and delivered, shall be deemed to be an original and all of which counterparts, taken
together, shall constitute but one and the same Agreement. 
 Section 7.13 Entirety. This Agreement, the Intercreditor Agreement
and the other Operative Agreements to which the Liquidity Provider is a party constitute the entire agreement of the parties hereto with respect to the subject matter hereof and supersedes all prior understandings and agreements of such parties.

 Section 7.14 Headings. Section headings in this Agreement are included herein for convenience of reference only and shall not
constitute a part of this Agreement for any other purpose. 
 Section 7.15 LIQUIDITY PROVIDER’S OBLIGATION TO MAKE ADVANCES.
EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE OBLIGATIONS OF THE LIQUIDITY PROVIDER TO MAKE ADVANCES HEREUNDER, AND THE BORROWER’S RIGHTS TO DELIVER NOTICES OF BORROWING REQUESTING THE MAKING OF ADVANCES HEREUNDER, SHALL BE UNCONDITIONAL
AND IRREVOCABLE, AND SHALL BE PAID OR PERFORMED, IN EACH CASE STRICTLY IN ACCORDANCE WITH THE TERMS OF THIS AGREEMENT. 
 Section 7.16
Patriot Act. The Liquidity Provider hereby notifies the Borrower that pursuant to the requirements of the USA PATRIOT Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)) (the “Act”), the Liquidity
Provider is required to obtain, verify and record, and the Borrower shall provide to the Liquidity Provider upon request, information that identifies the Borrower, which information includes the name and address of the Borrower and other information
that will allow the Liquidity Provider to identify the Borrower in accordance with the Act. 
  

 26 

 [Revolving Credit Agreement (2007-1A)] 
  

 IN WITNESS WHEREOF, the parties have caused this Agreement to be duly executed and delivered
by their respective officers thereunto duly authorized as of the date first set forth above. 
  

			
	WILMINGTON TRUST COMPANY, not in its individual capacity but solely as Subordination Agent, as agent and trustee for the Class A Trust,
	as Borrower
		
	 By:
	 	 /s/ W. Chris Sponenberg

	 Name:
	 	W. Chris Sponenberg
	 Title:
	 	Vice President
	
	 MORGAN STANLEY SENIOR FUNDING, INC.,
 as Liquidity Provider

		
	 By:
	 	 /s/ Keith Amburgey

	 Name:
	 	Keith Amburgey
	 Title:
	 	Vice President
		
	 By:
	 	 /s/ Keith Amburgey

	 Name:
	 	Keith Amburgey
	 Title:
	 	Vice President

  

 27 

 [Revolving Credit Agreement (2007-1A)] 
  

 ANNEX I 
 TO 
 REVOLVING CREDIT AGREEMENT 
 INTEREST ADVANCE NOTICE OF BORROWING 
 The undersigned, a duly authorized
signatory of the undersigned borrower (the “Borrower”), hereby certifies to Morgan Stanley Senior Funding, Inc. (the “Liquidity Provider”), with reference to the Revolving Credit Agreement (2007-1A) dated as
of June 26, 2007, between the Borrower and the Liquidity Provider (the “Liquidity Agreement”; the terms defined therein and not otherwise defined herein being used herein as therein defined or referenced), that:

 (1) The Borrower is the Subordination Agent under the Intercreditor Agreement. 
 (2) The Borrower is delivering this Notice of Borrowing for the making of an Interest Advance by the Liquidity Provider to be used,
subject to clause (3)(v) below, for the payment of interest on the Class A Certificates which was payable on                      ,
         (the “Distribution Date”) in accordance with the terms and provisions of the Class A Trust Agreement and the Class A Certificates, which Advance is requested
to be made on                     ,         . The Interest Advance should be transferred to
[name of bank/wire instructions/ABA number] in favor of account number [        ], reference [        ]. 
 (3) The amount of the Interest Advance requested hereby (i) is
$[                    ], to be applied in respect of the payment of the interest which was due and payable on the Class A Certificates on
the Distribution Date, (ii) does not include any amount with respect to the payment of principal of, or premium on, the Class A Certificates, or principal of, or interest or premium on, the Class B Certificates and the Class C
Certificates, (iii) was computed in accordance with the provisions of the Class A Certificates, the Liquidity Agreement, the Class A Trust Agreement and the Intercreditor Agreement (a copy of which computation is attached hereto as
Schedule I), (iv) does not exceed the Maximum Available Commitment on the date hereof, and (v) has not been and is not the subject of a prior or contemporaneous Notice of Borrowing. 
 (4) Upon receipt by or on behalf of the Borrower of the amount requested hereby, (a) the Borrower will apply the same in accordance
with the terms of Section 3.5(b) of the Intercreditor Agreement, (b) no portion of such amount shall be applied by the Borrower for any other purpose and (c) no portion of such amount until so applied shall be commingled with
other funds held by the Borrower. 
 The Borrower hereby acknowledges that, pursuant to the Liquidity Agreement, the making of the Interest
Advance as requested by this Notice of Borrowing shall automatically reduce, subject to reinstatement in accordance with the terms of the Liquidity Agreement, the Maximum Available Commitment by an amount equal to the amount of the Interest Advance
requested to be made hereby as set forth in clause (i) of paragraph (3) of this Notice of Borrowing and such reduction shall automatically result in corresponding reductions in the amounts available to be borrowed pursuant to a subsequent
Advance. 
  

 ANNEX I 
 Page 1 

 [Revolving Credit Agreement (2007-1A)] 
  

 IN WITNESS WHEREOF, the Borrower has executed and delivered this Notice of Borrowing as of the
         day of                     ,         .

  

			
	WILMINGTON TRUST COMPANY, not in its individual capacity but solely as Subordination Agent, as Agent and Trustee for the United Air Lines Pass Through Trust 2007-1A, as
Borrower
		
	 By:
	 	  

	 Name:
	 	
	 Title:
	 	

  

 ANNEX I 
 Page 2 

 [Revolving Credit Agreement (2007-1A)] 
  

 SCHEDULE I 
 TO 
 INTEREST ADVANCE NOTICE OF BORROWING 
 [Insert copy of computations in accordance with Interest Advance Notice of Borrowing] 
  

 ANNEX I 
 Page 3 

 [Revolving Credit Agreement (2007-1A)] 
  

 ANNEX II 
 TO 
 REVOLVING CREDIT AGREEMENT 
 NON-EXTENSION ADVANCE NOTICE OF BORROWING 
 The undersigned, a duly authorized
signatory of the undersigned borrower (the “Borrower”), hereby certifies to Morgan Stanley Senior Funding, Inc. (the “Liquidity Provider”), with reference to the Revolving Credit Agreement (2007-1A) dated as
of June 26, 2007, between the Borrower and the Liquidity Provider (the “Liquidity Agreement”; the terms defined therein and not otherwise defined herein being used herein as therein defined or referenced), that:

 (1) The Borrower is the Subordination Agent under the Intercreditor Agreement. 
 (2) The Borrower is delivering this Notice of Borrowing for the making of the Non-Extension Advance by the Liquidity Provider to be used
for the funding of the Class A Cash Collateral Account in accordance with Section 3.5(d) of the Intercreditor Agreement, which Advance is requested to be made on
                    ,         . The Non-Extension Advance should be transferred to [name of
bank/wire instructions/ABA number] in favor of account number [        ], reference [                    ].

 (3) The amount of the Non-Extension Advance requested hereby (i) is
$                    .    , which equals the Maximum Available Commitment on the date hereof and is to be applied
in respect of the funding of the Class A Cash Collateral Account in accordance with Section 3.5(d) of the Intercreditor Agreement, (ii) does not include any amount with respect to the payment of the principal of, or premium on, the
Class A Certificates, or principal of, or interest or premium on, the Class B Certificates or the Class C Certificates, (iii) was computed in accordance with the provisions of the Class A Certificates, the Liquidity
Agreement, the Class A Trust Agreement and the Intercreditor Agreement (a copy of which computation is attached hereto as Schedule I), and (iv) has not been and is not the subject of a prior or contemporaneous Notice of Borrowing
under the Liquidity Agreement. 
 (4) Upon receipt by or on behalf of the Borrower of the amount requested hereby,
(a) the Borrower will deposit such amount in the Class A Cash Collateral Account and apply the same in accordance with the terms of Section 3.5(d) of the Intercreditor Agreement, (b) no portion of such amount shall be applied by
the Borrower for any other purpose and (c) no portion of such amount until so applied shall be commingled with other funds held by the Borrower. 
 The Borrower hereby acknowledges that, pursuant to the Liquidity Agreement, (A) the making of the Non-Extension Advance as requested by this Notice of Borrowing shall automatically and irrevocably terminate the
obligation of the Liquidity Provider to make further Advances under the Liquidity Agreement; and (B) following the making by the Liquidity Provider of the Non-Extension Advance requested by this Notice of Borrowing, the Borrower shall not be
entitled to request any further Advances under the Liquidity Agreement. 
  

 ANNEX II 
 Page 1 

 [Revolving Credit Agreement (2007-1A)] 
  

 IN WITNESS WHEREOF, the Borrower has executed and delivered this Notice of Borrowing as of the
         day of                     ,         .

  

			
	WILMINGTON TRUST COMPANY, not in its individual capacity but solely as Subordination Agent, as Agent and Trustee for the United Air Lines Pass Through Trust 2007-1A, as
Borrower
		
	 By:
	 	  

	 Name:
	 	
	 Title:
	 	

  

 ANNEX II 
 Page 2 

 [Revolving Credit Agreement (2007-1A)] 
  

 SCHEDULE I 
 TO 
 NON-EXTENSION ADVANCE NOTICE OF BORROWING 
 [Insert copy of computations in accordance with Non-Extension Advance Notice of Borrowing] 
  

 ANNEX II 
 Page 3 

 [Revolving Credit Agreement (2007-1A)] 
  

 ANNEX III 
 TO 
 REVOLVING CREDIT AGREEMENT 
 DOWNGRADE ADVANCE NOTICE OF BORROWING 
 The undersigned, a duly authorized
signatory of the undersigned borrower (the “Borrower”), hereby certifies to MORGAN STANLEY SENIOR FUNDING, INC. (the “Liquidity Provider”), with reference to the REVOLVING CREDIT AGREEMENT
(2007-1A) dated as of June 26, 2007, between the Borrower and the Liquidity Provider (the “Liquidity Agreement”; the terms defined therein and not otherwise defined herein being used herein as therein defined or
referenced), that: 
 (1) The Borrower is the Subordination Agent under the Intercreditor Agreement. 
 (2) The Borrower is delivering this Notice of Borrowing for the making of the Downgrade Advance by the Liquidity Provider to be used for
the funding of the Class A Cash Collateral Account in accordance with Section 3.5(c) of the Intercreditor Agreement by reason of the occurrence of a Downgrade Event, which Advance is requested to be made on
                    ,         . The Downgrade Advance should be transferred to [name of
bank/wire instructions/ABA number] in favor of account number [        ], reference [                    ].

 (3) The amount of the Downgrade Advance requested hereby (i) is
$                    .    , which equals the Maximum Available Commitment on the date hereof and is to be applied
in respect of the funding of the Class A Cash Collateral Account in accordance with Section 3.5(c) of the Intercreditor Agreement, (ii) does not include any amount with respect to the payment of the principal of, or premium on, the
Class A Certificates, or principal of, or interest or premium on, the Class B Certificates or the Class C Certificates, (iii) was computed in accordance with the provisions of the Class A Certificates, the Liquidity
Agreement, the Class A Trust Agreement and the Intercreditor Agreement (a copy of which computation is attached hereto as Schedule I), and (iv) has not been and is not the subject of a prior or contemporaneous Notice of Borrowing
under the Liquidity Agreement. 
 (4) Upon receipt by or on behalf of the Borrower of the amount requested hereby,
(a) the Borrower will deposit such amount in the Class A Cash Collateral Account and apply the same in accordance with the terms of Section 3.5(c) of the Intercreditor Agreement, (b) no portion of such amount shall be applied by
the Borrower for any other purpose and (c) no portion of such amount until so applied shall be commingled with other funds held by the Borrower. 
 The Borrower hereby acknowledges that, pursuant to the Liquidity Agreement, (A) the making of the Downgrade Advance as requested by this Notice of Borrowing shall automatically and irrevocably terminate the
obligation of the Liquidity Provider to make further Advances under the Liquidity Agreement; and (B) following the making by the Liquidity Provider of the Downgrade Advance requested by this Notice of Borrowing, the Borrower shall not be
entitled to request any further Advances under the Liquidity Agreement. 
  

 ANNEX III 
 Page 1 

 [Revolving Credit Agreement (2007-1A)] 
  

 IN WITNESS WHEREOF, the Borrower has executed and delivered this Notice of Borrowing as of the
         day of                      ,        .

  

			
	WILMINGTON TRUST COMPANY, not in its individual capacity but solely as Subordination Agent, as Agent and Trustee for the United Air Lines Pass Through Trust 2007-1A, as
Borrower
		
	 By:
	 	  

	 Name:
	 	
	 Title:
	 	

  

 ANNEX III 
 Page 2 

 [Revolving Credit Agreement (2007-1A)] 
  

 SCHEDULE I 
 TO 
 DOWNGRADE ADVANCE NOTICE OF BORROWING 
 [Insert copy of computations in accordance with Downgrade Advance Notice of Borrowing] 
  

 ANNEX III 
 Page 3 

 [Revolving Credit Agreement (2007-1A)] 
  

 ANNEX IV 
 TO 
 REVOLVING CREDIT AGREEMENT 
 FINAL ADVANCE NOTICE OF BORROWING 
 The undersigned, a duly authorized signatory
of the undersigned borrower (the “Borrower”), hereby certifies to MORGAN STANLEY SENIOR FUNDING, INC. (the “Liquidity Provider”), with reference to the REVOLVING CREDIT AGREEMENT
(2007-1A) dated as of June 26, 2007, between the Borrower and the Liquidity Provider (the “Liquidity Agreement”; the terms defined therein and not otherwise defined herein being used herein as therein defined or
referenced), that: 
 (1) The Borrower is the Subordination Agent under the Intercreditor Agreement. 
 (2) The Borrower is delivering this Notice of Borrowing for the making of the Final Advance by the Liquidity Provider to be used for the
funding of the Class A Cash Collateral Account in accordance with Section 3.5(i) of the Intercreditor Agreement by reason of the receipt by the Borrower of a Termination Notice from the Liquidity Provider with respect to the Liquidity
Agreement, which Advance is requested to be made on                     ,         . The Final
Advance should be transferred to [name of bank/wire instructions/ABA number] in favor of account number [        ], reference
[                    ]. 
 (3) The amount of the Final Advance requested hereby (i) is $                    .    , which equals
the Maximum Available Commitment on the date hereof and is to be applied in respect of the funding of the Class A Cash Collateral Account in accordance with Section 3.5(i) of the Intercreditor Agreement, (ii) does not include any
amount with respect to the payment of principal of, or premium on, the Class A Certificates, or principal of, or interest or premium on, the Class B Certificates or the Class C Certificates, (iii) was computed in accordance with
the provisions of the Class A Certificates, the Liquidity Agreement, the Class A Trust Agreement and the Intercreditor Agreement (a copy of which computation is attached hereto as Schedule I), and (iv) has not been and is not the
subject of a prior or contemporaneous Notice of Borrowing. 
 (4) Upon receipt by or on behalf of the Borrower of the amount
requested hereby, (a) the Borrower will deposit such amount in the Class A Cash Collateral Account and apply the same in accordance with the terms of Section 3.5(i) of the Intercreditor Agreement, (b) no portion of such amount
shall be applied by the Borrower for any other purpose and (c) no portion of such amount until so applied shall be commingled with other funds held by the Borrower. 
 (5) The Borrower hereby requests that the Advance requested hereby be a Base Rate Advance and that such Base Rate Advance be converted
into a LIBOR Advance on the third Business Day following your receipt of this notice. 
  

 ANNEX IV 
 Page 1 

 [Revolving Credit Agreement (2007-1A)] 
  

 The Borrower hereby acknowledges that, pursuant to the Liquidity Agreement, (A) the making of
the Final Advance as requested by this Notice of Borrowing shall automatically and irrevocably terminate the obligation of the Liquidity Provider to make further Advances under the Liquidity Agreement; and (B) following the making by the
Liquidity Provider of the Final Advance requested by this Notice of Borrowing, the Borrower shall not be entitled to request any further Advances under the Liquidity Agreement. 
  

 ANNEX IV 
 Page 2 

 [Revolving Credit Agreement (2007-1A)] 
  

 IN WITNESS WHEREOF, the Borrower has executed and delivered this Notice of Borrowing as of the
         day of                     ,         .

  

			
	WILMINGTON TRUST COMPANY, not in its individual capacity but solely as Subordination Agent, as Agent and Trustee for the United Air Lines Pass Through Trust 2007-1A, as
Borrower
		
	 By:
	 	  

	 Name:
	 	
	 Title:
	 	

  

 ANNEX IV 
 Page 3 

 [Revolving Credit Agreement (2007-1A)] 
  

 SCHEDULE I 
 TO 
 FINAL ADVANCE NOTICE OF BORROWING 
 [Insert copy of computations in accordance with Final Advance Notice of Borrowing] 
  

 ANNEX IV 
 Page 4 

 [Revolving Credit Agreement (2007-1A)] 
  

 ANNEX V 
 TO 
 REVOLVING CREDIT AGREEMENT 
 NOTICE OF TERMINATION 
 [Date] 
 Wilmington Trust Company, 
 as Subordination Agent, as
Borrower 
 Rodney Square North 
 1100 North Market Square

 Wilmington, DE 19890-0001 
 Attention: Corporate Trust
Administration 
 Revolving Credit Agreement dated as of June 26, 2007 between Wilmington Trust Company, as Subordination Agent, as agent
and trustee for the United Air Lines Pass Through Trust, 2007-1A, as Borrower, and Morgan Stanley Senior Funding, Inc. (the “Liquidity Agreement”) 
 Ladies and Gentlemen: 
 You are hereby notified that pursuant to Section 6.01(a) of the Liquidity
Agreement, by reason of the occurrence of a Liquidity Event of Default and the existence of a Performing Note Deficiency (each as defined therein), we are giving this notice to you in order to cause (i) our obligations to make Advances (as
defined therein) under such Liquidity Agreement to terminate on the fifth Business Day after the date on which you receive this notice and (ii) you to request a Final Advance under the Liquidity Agreement pursuant to Section 3.5(i) of the
Intercreditor Agreement (as defined in the Liquidity Agreement) as a consequence of your receipt of this notice. 
  

 ANNEX V 
 Page 1 

 [Revolving Credit Agreement (2007-1A)] 
  

 THIS NOTICE IS THE “NOTICE OF TERMINATION” PROVIDED FOR UNDER THE LIQUIDITY AGREEMENT. OUR
OBLIGATIONS TO MAKE ADVANCES UNDER THE LIQUIDITY AGREEMENT WILL TERMINATE ON THE FIFTH BUSINESS DAY AFTER THE DATE ON WHICH YOU RECEIVE THIS NOTICE. 
  

			
	Very truly yours,
	
	MORGAN STANLEY SENIOR FUNDING, INC., as Liquidity Provider
		
	By:	 	  

	Name:	 	
	Title:	 	
		
	By:	 	  

	Name:	 	
	Title:	 	

 cc: Wilmington Trust Company, 
 as Class A Trustee 
  

 ANNEX V 
 Page 2 

 [Revolving Credit Agreement (2007-1A)] 
  

 ANNEX VI 
 TO 
 REVOLVING CREDIT AGREEMENT 
 NOTICE OF REPLACEMENT SUBORDINATION AGENT 
 [Date] 
 Attention: 
 Revolving Credit Agreement dated as of
June 26, 2007, between Wilmington Trust Company, as Subordination Agent, as agent and trustee for the United Air Lines Pass Through Trust, 2007-1A, as Borrower, and Morgan Stanley Senior Funding, Inc. (the “Liquidity
Agreement”) 
 Ladies and Gentlemen: 
 For value received, the undersigned beneficiary hereby irrevocably transfers to: 
  

	
	  
  

	[Name of Transferee]
	  
  

	[Address of Transferee]

 all rights and obligations of the undersigned as Borrower under the Liquidity Agreement referred to above. The
transferee has succeeded the undersigned as Subordination Agent under the Intercreditor Agreement referred to in the first paragraph of the Liquidity Agreement, pursuant to the terms of Section 8.1 of the Intercreditor Agreement. 
 By this transfer, all rights of the undersigned as Borrower under the Liquidity Agreement are transferred to the transferee and the transferee shall
hereafter have the sole rights and obligations as Borrower thereunder. The undersigned shall pay any costs and expenses of such transfer, including, but not limited to, transfer taxes or governmental charges. 
 We ask that this transfer be effective as of
                    ,         . 
  

			
	WILMINGTON TRUST COMPANY, not in its individual capacity but solely as Subordination Agent, as Agent and Trustee for the United Air Lines Pass Through Trust 2007-1A, as
Borrower
		
	 By:
	 	  

	 Name:
	 	
	 Title:
	 	

  

 ANNEX VI 
 Page 1 

 [Revolving Credit Agreement (2007-1A)] 
  

 ANNEX VII TO 
 REVOLVING CREDIT AGREEMENT 
 SPECIAL TERMINATION ADVANCE NOTICE OF BORROWING 
 The undersigned, a duly authorized signatory of the undersigned borrower (the “Borrower”), hereby certifies to MORGAN STANLEY SENIOR
FUNDING, INC. (the “Liquidity Provider”), with reference to the Revolving Credit Agreement, dated as of June 26, 2007, between the Borrower and the Liquidity Provider (the “Liquidity Agreement”); the terms
defined therein and not otherwise defined herein being used herein as therein defined or referenced), that: 
 (1) The
Borrower is the Subordination Agent under the Intercreditor Agreement. 
 (2) The Borrower is delivering this Notice of
Borrowing for the making of the Special Termination Advance by the Liquidity Provider to be used for the funding of the Class A Cash Collateral Account in accordance with Section 3.5(k) of the Intercreditor Agreement by reason of the
receipt by the Borrower of a Special Termination Notice from the Liquidity Provider with respect to the Liquidity Agreement, which Advance is requested to be made on
                    . 
 (3) The amount of the Special Termination Advance requested hereby (i) is $                    , which equals the Maximum
Available Commitment on the date hereof and is to be applied in respect of the funding of the Class A Cash Collateral Account in accordance with Section 3.5(k) of the Intercreditor Agreement, (ii) does not include any amount with
respect to the payment of principal of, or premium on, the Class A Certificates, the Class B Certificates or the Class C Certificates, or interest on the Class B Certificates or the Class C Certificates, (iii) was computed in accordance
with the provisions of the Class A Certificates, the Class A Trust Agreement and the Intercreditor Agreement (a copy of which computation is attached hereto as Schedule I), and (iv) has not been and is not the subject of a prior
or contemporaneous Notice of Borrowing. 
 (4) Upon receipt by or on behalf of the Borrower of the amount requested hereby,
(a) the Borrower shall deposit such amount in the Class A Cash Collateral Account and apply the same in accordance with the terms of Section 3.5(k) of the Intercreditor Agreement, (b) no portion of such amount shall be applied by
the Borrower for any other purpose and (c) no portion of such amount until so applied shall be commingled with other funds held by the Borrower. 
 The Borrower hereby acknowledges that, pursuant to the Liquidity Agreement, (A) the making of the Special Termination Advance as requested by this Notice of Borrowing shall automatically and irrevocably terminate
the obligation of the Liquidity Provider to make further Advances under the Liquidity Agreement; and (B) following the making by the Liquidity Provider of the Special Termination Advance requested by this Notice of Borrowing, the Borrower shall
not be entitled to request any further Advances under the Liquidity Agreement. 
  

 ANNEX VII 
 Page 1 

 [Revolving Credit Agreement (2007-1A)] 
  

 IN WITNESS WHEREOF, the Borrower has executed and delivered this Notice of Borrowing as of the
         day of                     ,         .

  

			
	WILMINGTON TRUST COMPANY, not in its individual capacity but solely as Subordination Agent, as Agent and Trustee for the United Air Lines Pass Through Trust 2007-1A, as
Borrower
		
	 By:
	 	  

	 Name:
	 	
	 Title:
	 	

  

 ANNEX VII 
 Page 2 

 [Revolving Credit Agreement (2007-1A)] 
  

 SCHEDULE I TO SPECIAL TERMINATION ADVANCE NOTICE OF BORROWING 
 [Insert Copy of Computations in accordance with 
 Special Termination Advance Notice of Borrowing] 
  

 ANNEX VII 
 Page 1 

 [Revolving Credit Agreement (2007-1A)] 
  

 ANNEX VIII TO 
 REVOLVING CREDIT AGREEMENT 
 NOTICE OF SPECIAL TERMINATION 
 [Date] 
 Wilmington Trust Company 
 Rodney Square North 
 1100 North Market Square 
 Wilmington, DE 19890-0001 
 Attention: Corporate Trust Administration

  

			
	 Re:
	  	Revolving Credit Agreement, dated as of June 26, 2007, between Wilmington Trust Company, as Subordination Agent, as agent and trustee for the United Airlines 2007-1A Pass Through Trust,
as Borrower, and Morgan Stanley Senior Funding, Inc. (the “Primary Liquidity Agreement”)

 Ladies and Gentlemen: 
 You are hereby notified that pursuant to Section 6.01(b) of the Liquidity Agreement, by reason of the aggregate Pool Balance of the Class A Certificates exceeding the aggregate outstanding principal amount
of the Series A Equipment Notes (other than any Series A Equipment Notes previously sold or with respect to which the collateral securing such Series A Equipment Notes has been disposed of) during the 18-month period prior to July 2,
2022, we are giving this notice to you in order to cause (i) our obligations to make Advances (as defined therein) under such Liquidity Agreement to terminate on the fifth Business Day after the date on which you receive this notice and
(ii) you to request a Special Termination Advance under the Liquidity Agreement pursuant to Section 3.5(k) of the Intercreditor Agreement (as defined in the Liquidity Agreement) as a consequence of your receipt of this notice. 

 

 ANNEX VIII 
 Page 1 

 [Revolving Credit Agreement (2007-1A)] 
  

 THIS NOTICE IS THE “NOTICE OF SPECIAL TERMINATION” PROVIDED FOR UNDER THE LIQUIDITY
AGREEMENT. OUR OBLIGATIONS TO MAKE ADVANCES UNDER THE LIQUIDITY AGREEMENT SHALL TERMINATE ON THE FIFTH BUSINESS DAY AFTER THE DATE ON WHICH YOU RECEIVE THIS NOTICE. 
  

			
	 Very truly yours,

	
	 MORGAN STANLEY SENIOR FUNDING, INC.
 as Liquidity Provider

		
	By:	 	  

	Name:	 	
	Title:	 	
		
	By:	 	  

	Name:	 	
	Title:	 	

 cc: Wilmington Trust Company, as Trustee 
  

 ANNEX VIII 
 Page 2

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