Document:

EX-10.11

 Exhibit 10.11 
 AMENDED AND RESTATED LETTER AGREEMENT NO. 4 
 TO THE AIRBUS A350-900XWB PURCHASE
AGREEMENT 
 dated as of March 5, 2010 
 between 
 AIRBUS S.A.S. 

and 
 UNITED
AIRLINES, INC. 
 This amended and restated Letter Agreement No. 4 (hereinafter referred to as the “Letter
Agreement”) is entered into as of June 19, 2013 by and between AIRBUS S.A.S., a société par actions simplifiée, organized and existing under the laws of the Republic of France, having its registered office located
at 2, Rond Point Maurice Bellonte, 31700 Blagnac (France) (hereinafter referred to as the “Seller”), and UNITED AIRLINES, INC., a corporation organized and existing under the laws of the State of Delaware, United States of America,
having its principal corporate offices located at 233 South Wacker Drive, Chicago, Illinois 60606 (hereinafter referred to as the “Buyer”). 
 WITNESSETH: 
 WHEREAS, the Buyer and the Seller have entered into the AIRBUS A350-900XWB
Purchase Agreement, dated as of March 5, 2010 (which agreement as previously amended and supplemented with all Exhibits, Appendices and Letter Agreements attached thereto is hereinafter called the “Agreement”), and 

 WHEREAS, the Buyer and the Seller have entered into Letter Agreement No. 4 to the Agreement, setting forth certain terms and
conditions regarding the sale of the Aircraft (the “Original Letter Agreement”). 
 WHEREAS, the Buyer and the Seller
wish to amend and restate the Original Letter Agreement to incorporate relevant amendments to such Original Letter Agreement into a single document. 
 NOW THEREFORE IT IS AGREED THAT THE ORIGINAL LETTER AGREEMENT IS HEREBY AMENDED AND RESTATED TO READ IN ITS ENTIRETY AS FOLLOWS: 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.4	  	 	LA4-1	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 
 CONFIDENTIAL MATERIAL APPEARING IN THIS DOCUMENT HAS BEEN OMITTED
AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION IN ACCORDANCE WITH THE SECURITIES ACT OF 1933, AS AMENDED, AND RULE 24B-2 PROMULGATED THEREUNDER. OMITTED INFORMATION HAS BEEN REPLACED WITH ASTERISKS. 

	1.	DEFINITIONS 

 Clause 0 to
the Agreement is amended to either modify or add the following defined terms between the “QUOTE” and “UNQUOTE”: 
 QUOTE 
 A350-1000XWB Aircraft – any or all of the thirty-five
(35) firm A350-1000XWB aircraft for which the delivery schedule is set forth in Clause 9.1 to this Agreement ***, to be sold by the Seller and purchased by the Buyer pursuant to this Agreement, together with all components, equipment, parts and
accessories installed in or on such aircraft and the A350-1000XWB Propulsion Systems installed thereon upon delivery. 

A350-900XWB Aircraft – any or all of the A350-1000XWB Aircraft converted to firmly ordered A350-900XWB aircraft, ***, as
described herein, to be sold by the Seller and purchased by the Buyer pursuant to this Agreement, together with all components, equipment, parts and accessories installed in or on such aircraft and the A350-900XWB Propulsion Systems installed
thereon upon delivery. 
 A350-900XWB Airframe – any A350-900XWB Aircraft, excluding the Propulsion Systems thereof,
but including the nacelles and thrust reversers. 
 A350-900XWB Propulsion Systems – as set forth in Paragraph 3.3.1
of Letter Agreement No. 4 to the Agreement. 
 A350-900XWB Specification – the A350-900XWB Standard
Specification as amended by the SCNs, a list of which is set forth in Exhibit B-2 to this Letter Agreement No. 4 hereto and as may be further amended or modified in accordance with this Agreement. 

A350-900XWB Standard Specification – the A350-900XWB standard specification document number ***, a copy of which is attached
as Exhibit A to this Letter Agreement No. 4. 
 A350XWB Aircraft – any or all of the A350-1000XWB Aircraft and
the A350-900XWB Aircraft, as the case may be. 
 A350XWB Standard Specification – as applicable, (i) the
A350-900XWB Standard Specification or (ii) the A350-1000XWB Standard Specification. 
 Aircraft – as applicable,
(i) any or all of the A350-1000XWB Aircraft sold or to be sold by the Seller and purchased or to be purchased by the Buyer pursuant to this Agreement, and ***, and (iii) any or all of the A350XWB Aircraft with respect to which the Buyer
has exercised a Conversion Right. 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.4	  	 	LA4-2	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 Airframe – *** the A350-1000XWB Airframe. 

*** 
 Final
Price of the A350-900XWB Aircraft – as defined in Paragraph 3.3.4 of Letter Agreement No.4 to the Agreement. 
 Final
Price of the A350XWB Aircraft – as applicable, (i) the Final Price of the A350-900XWB Aircraft or (ii) the Final Price of the A350-1000XWB Aircraft. 
 *** 
 Specification – as applicable, the A350-900XWB Specification or
the A350-1000XWB Specification. 
 UNQUOTE 
  

	2.	*** 

  

	2.1.	*** 

  

	2.2.	*** 

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	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.4	  	 	LA4-3	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 *** 
  

	2.3	*** 

  

	3.	*** 

  

	3.1.	*** 

  

	3.2.	INTENTIONALLY LEFT BLANK 

  

	3.3.	A350-900XWB Related Matters 

  

	3.3.1	A350-900XWB Specification 

The A350-900XWB Aircraft shall be manufactured in accordance with the A350-900XWB Standard Specification. 

The Seller agrees to inform the Buyer of any Standard Specification evolutions that the Seller is offering to airlines for incorporation
in the A350-900XWB aircraft. 
 The A350-900XWB Aircraft will be equipped with a set of ***. 

 

	3.3.2	Base Price of the A350-900XWB Aircraft 

 The Base Price of the A350-900XWB Aircraft is the sum of: 
 (i) the Base Price of
the A350-900XWB Aircraft as defined in the A350-900XWB Standard Specification (excluding Buyer Furnished Equipment and Airbus Contracted Supplier equipment), which is: 
 *** 
 (ii) the sum of the base prices of all SCNs set forth in Appendix B-2 to this
Letter Agreement No.4, which is: 
 *** 
 The Base Price of the Aircraft has been established in accordance with ***. 
  

	3.3.3	ACS Equipment Price for the A350-900XWB Aircraft  

 The conditions of purchasing of ACS Equipment for the Aircraft will be the subject of an agreement among the Seller, ACS Suppliers and the Buyer at the time of the final selection of the ACS Equipment
from the Option Catalogues. 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.4	  	 	LA4-4	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 Notwithstanding the foregoing, it is understood that ACS Equipment for the Aircraft will be
purchased by the Seller, in accordance with the agreed terms as set forth above, and invoiced to the Buyer in accordance with Paragraph 3.3.4. 
 The following reference amount (the “A350-900XWB ACS Reference Price”) may be used as *** for the ACS Equipment for the Buyer’s Aircraft: 

*** 
  

	3.3.4	Final Price of the A350-900XWB Aircraft 

 The Final Price of the A350-900XWB Aircraft will be the sum of: 
 (i) the
A350-900XWB Aircraft Base Price, as adjusted to the applicable Delivery Date of such Aircraft in accordance with Clause 4 to the Agreement; 
 (ii) the aggregate of all increases or decreases to the Base Price of the A350-900XWB Aircraft as agreed in any Specification Change Notice for the A350-900XWB Aircraft or part thereof subsequent to the
date of this Agreement as adjusted to the Delivery Date in accordance with Clause 4 to the Agreement; 
 (iii) the price of any
and all ACS Equipment selected by the Buyer in the Seller’s Option Catalogs and purchased by the Seller, either at the then applicable Option Catalog price or in accordance with the terms and conditions agreed between the Buyer and the ACS and
communicated to the Seller; and; 
 (iv) any other amount resulting from any other provisions of this Agreement and/or any other
written agreement between the Buyer and the Seller relating to the A350-900XWB Aircraft. 
  

	3.3.5.	*** 

  

	3.3.6.	*** 

  

	4.	*** 

  

	4.1.	*** 

  

	4.2.	*** 

  

	4.3.	*** 

  

	5.	*** 

  

	5.1.	*** 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.4	  	 	LA4-5	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

	5.2.	*** 

  

	6.	*** 

  

	6.1.	*** 

  

	6.2.	*** 

  

	7.	ASSIGNMENT 

 This Letter
Agreement and the rights and obligations of the parties will be subject to the provisions of Clause 21 of the Agreement. 
  

	8.	CONFIDENTIALITY 

 This
Letter Agreement is subject to the terms and conditions of Clause 22.10 of the Agreement. 
  

	9.	COUNTERPARTS 

 This Letter
Agreement may be executed by the parties hereto in separate counterparts, each of which when so executed and delivered shall be an original, but all such counterparts shall together constitute one and the same instrument. 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.4	  	 	LA4-6	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 If the foregoing correctly sets forth our understanding, please execute the original and one (1) copy
hereof in the space provided below and return a copy to the Seller. 
  

			
	Very truly yours,
	
	AIRBUS S.A.S.
		
	By:	 	/s/ John J. Leahy
	Its:	 	Chief Operating Officer
		 	Customers

  

			
	Accepted and Agreed
	
	UNITED AIRLINES, INC.
		
	By:	 	/s/ Gerald Laderman
	Its:	 	Senior Vice President & Treasurer

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.4	  	 	LA4-7	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 EXHIBIT A 

*** 
 ***

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.4	  	 	LA4-8	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 EXHIBIT B-1 
 INTENTIONALLY LEFT BLANK 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.4	  	 	LA4-9	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 EXHIBIT B-2 
 *** 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.4	  	 	LA4-10	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIALEX-10.12

 Exhibit 10.12 
 AMENDED AND RESTATED LETTER AGREEMENT NO. 5 
 TO THE AIRBUS A350-900XWB PURCHASE
AGREEMENT 
 dated as of March 5, 2010 
 between 
 AIRBUS S.A.S. 

and 
 UNITED
AIRLINES, INC. 
 This amended and restated Letter Agreement No. 5 (hereinafter referred to as the “Letter
Agreement”) is entered into as of June 19, 2013 by and between AIRBUS S.A.S., a société par actions simplifiée, organized and existing under the laws of the Republic of France, having its registered office located
at 2, Rond Point Maurice Bellonte, 31700 Blagnac (France) (hereinafter referred to as the “Seller”), and UNITED AIRLINES, INC., a corporation organized and existing under the laws of the State of Delaware, United States of America,
having its principal corporate offices located at 233 South Wacker Drive, Chicago, Illinois 60606 (hereinafter referred to as the “Buyer”). 
 WITNESSETH: 
 WHEREAS, the Buyer and the Seller have entered into the AIRBUS A350-900XWB
Purchase Agreement, dated as of March 5, 2010 (which agreement as previously amended and supplemented with all Exhibits, Appendices and Letter Agreements attached thereto is hereinafter called the “Agreement”), and 

 WHEREAS, the Buyer and the Seller have entered into Letter Agreement No. 5 to the Agreement, setting forth certain terms and
conditions regarding the sale of the Aircraft (the “Original Letter Agreement”), and 
 WHEREAS, the Buyer and the
Seller wish to amend and restate the Original Letter Agreement to incorporate relevant amendments to such Original Letter Agreement into a single document: 
 NOW THEREFORE IT IS AGREED THAT THE ORIGINAL LETTER AGREEMENT IS HEREBY AMENDED AND RESTATED TO READ IN ITS ENTIRETY AS FOLLOWS: 

 

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.5	  	 	LA5-1	  

 AIRBUS S.A.S. & UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 
 CONFIDENTIAL MATERIAL APPEARING IN THIS DOCUMENT HAS BEEN
OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION IN ACCORDANCE WITH THE SECURITIES ACT OF 1933, AS AMENDED, AND RULE 24B-2 PROMULGATED THEREUNDER. OMITTED INFORMATION HAS BEEN REPLACED WITH ASTERISKS. 

 TABLE OF CONTENTS 

 

							
	 1.
	 	AIRBUS WORLD	  	 	3	  
	 2.
	 	CLAUSE 14 – TECHNICAL DATA	  	 	4	  
	 3.
	 	CLAUSE 15 – SELLER REPRESENTATIVE SERVICES	  	 	10	  
	 3.1
	 	CUSTOMER SUPPORT REPRESENTATIVE(S)	  	 	10	  
	 3.2
	 	BUYER’S SUPPORT	  	 	10	  
	 3.3
	 	SELLER REPRESENTATIVE	  	 	10	  
	 4.
	 	CLAUSE 16 – TRAINING SUPPORT AND SERVICES	  	 	11	  
	 5.
	 	CLAUSE 17 – EQUIPMENT SUPPLIER PRODUCT SUPPORT	  	 	20	  
	 6.
	 	***	  	 	20	  
	 7.
	 	ASSIGNMENT	  	 	21	  
	 8.
	 	CONFIDENTIALITY	  	 	21	  
	 9.
	 	COUNTERPARTS	  	 	21	  

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.5	  	 	LA5-2	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

	1.	AIRBUS WORLD 

Notwithstanding anything in Exhibit H, the Buyer will have full access to Airbus World ***. 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.5	  	 	LA5-3	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

	2.	CLAUSE 14 – TECHNICAL DATA 

 Clause 14 of the Agreement is deleted in its entirety and replaced with the following text between the QUOTE and UNQUOTE: 
 QUOTE 
  

	 	14 -	TECHNICAL DATA 

  

	 	14.1	Scope 

 This Clause 14
covers the terms and conditions for the supply of technical data by the Seller (“Technical Data”) needed to support the Aircraft operation. *** 
 14.1.1 The Technical Data shall be supplied in the English language using the aeronautical terminology in common use. 
 14.1.2 All Technical Data shall be available on-line as set forth in Clause 14.4. Range, type, format and delivery schedule of the on-line Technical Data to be provided under this Agreement are outlined
in Exhibit G hereto. 
  

	 	14.2	Aircraft Identification for Technical Data  

 14.2.1 For those Technical Data that are customized to the Buyer’s Aircraft, the Buyer agrees to the allocation of fleet serial numbers (“Fleet Serial Numbers”) in the form of blocks
of numbers selected in the range from 001 to 999. 
 14.2.2 The sequence shall not be interrupted unless two (2) different
Propulsion Systems or two (2) different Aircraft models are selected. 
 14.2.3 The Buyer shall indicate to the Seller the
Fleet Serial Number allocated to each Aircraft corresponding to the delivery schedule set forth in Clause 9.1 *** Neither the designation of such Fleet Serial Numbers nor the subsequent allocation of the Fleet Serial Numbers to Manufacturer Serial
Numbers for the purpose of producing certain customized Technical Data shall constitute any property, insurable or other interest of the Buyer in any Aircraft prior to the Delivery of such Aircraft as provided for in this Agreement. 

The customized Technical Data that are affected thereby are the following: 

 

	 	•	 	 Aircraft Maintenance Manual, 

  

	 	•	 	 Illustrated Parts Catalog, 

  

	 	•	 	 Trouble Shooting Manual, 

  

	 	•	 	 Aircraft Wiring Manual, 

  

	 	•	 	 Aircraft Schematics Manual, 

  

	 	•	 	 Aircraft Wiring Lists. 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Agreement No.5	  	 	LA5-4	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 14.3    Integration of Equipment Data 

14.3.1 Supplier Parts 
 Information, including revisions, relating to Supplier Parts that are installed on the Aircraft at Delivery or through Airbus Service Bulletins thereafter will be introduced into the customized Technical
Data to the extent necessary for the comprehension of the affected systems, at no additional charge to the Buyer. 
 14.3.2
Buyer Furnished Equipment 
 14.3.2.1 The Seller shall introduce data related to Buyer Furnished Equipment, for equipment
that is installed on the Aircraft by the Seller (“BFE Data”) into the customized Technical Data, at no additional charge to the Buyer for the initial issue of the Technical Data provided at first Aircraft Delivery, provided such BFE
Data is provided in accordance with the conditions set forth in Clauses 14.3.2.2 through 14.3.2.6. 
 14.3.2.2 The Buyer shall
supply the BFE Data to the Seller at least six (6) months prior to the Scheduled Delivery Month of the first Aircraft. 

14.3.2.3 The BFE Data shall be supplied in English and shall be established in compliance with the then applicable revision of ATA
iSpecification 2200 and/or S1000D Specification jointly defined by the ASD (Aerospace and Defense Industries Association of Europe), AIA (Aerospace Industries Association) and ATA (Air Transport Association of America), as applicable. 

14.3.2.4 The Buyer and the Seller shall agree on the requirements for the provision to the Seller of BFE Data for “on-aircraft
maintenance”, such as but not limited to timeframe, media and format in which the BFE Data shall be supplied to the Seller, in order to manage the BFE Data integration process in an efficient, expeditious and economic manner. 

14.3.2.5 The BFE Data shall be delivered in digital format (SGML or XML raw data) and/or in Portable Document Format (PDF), as agreed
between the Buyer and the Seller. 
 14.3.2.6 All costs related to the delivery to the Seller of the applicable BFE Data shall be
borne by the Buyer. 
 14.4 Supply 
 14.4.1 Except as specifically otherwise set forth in Exhibit G, all Technical Data shall be made available on-line through the relevant services on the Seller’s customer portal Airbus World
(“Airbus World”), as further described in Exhibit H to the Agreement. 

  

							
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 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 14.4.2 The Technical Data shall be delivered according to a *** schedule to correspond with
the Deliveries of Aircraft. The Buyer shall provide no less than sixty (60) days notice when requesting a change to such delivery schedule. 
 14.4.3 It will be the responsibility of the Buyer to *** Upon request from the Buyer’s Aviation Authorities, such Aviation Authorities shall be given on-line access to the Buyer’s Technical
Data. 
  

	 	14.5	Revision Service 

 For
each firmly ordered Aircraft covered under this Agreement, revision service for the Technical Data shall be provided *** (each a “Revision Service Period”). 
 Thereafter revision service shall be provided in accordance with the terms and conditions set forth in the Seller’s then current Customer Services Catalog. 

 

	 	14.6	Service Bulletins (SB) Incorporation 

 During any Revision Service Period and upon the Buyer’s request, Seller Service Bulletin information shall be incorporated into the Technical Data, provided that the Buyer notifies the Seller through
the Airbus World “Service Bulletin Reporting” service that it intends to accomplish such Service Bulletin, after which post-Service Bulletin status shall be shown. *** 

 

	 	14.7	Technical Data Familiarization 

 Upon request by the Buyer, the Seller shall provide up to *** of Technical Data familiarization training at the Seller’s or the Buyer’s facilities. The basic familiarization course is tailored
for maintenance and engineering personnel. 
  

	 	14.8	Customer Originated Changes (COC) 

 If the Buyer wishes to introduce Buyer originated data (“COC Data”) into any of the customized Technical Data that are identified as eligible for such incorporation in the Seller’s
then current Customer Services Catalog, the Buyer shall notify the Seller of such intention. 
 The incorporation of any COC Data
shall be performed under the methods and tools for achieving such introduction and the conditions specified in the Seller’s then current Customer Services Catalog. 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Agreement No.5	  	 	LA5-6	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 14.9   Advanced Consultation Tool 

14.9.1 Some Technical Data shall be made available through several domains listed in Paragraph 14.9.2 and shall be provided on-line
through an Advanced Consultation Tool, which shall include the necessary navigation software and viewer to browse the Technical Data (together, “Advanced Consultation Tool”). 

14.9.2 The Advanced Consultation Tool encompasses the following domains: 

 

	 	•	 	 Maintenance, 

  

	 	•	 	 Planning, 

  

	 	•	 	 Repair, 

  

	 	•	 	 Workshop, 

  

	 	•	 	 Associated Data, 

  

	 	•	 	 Engineering. 

14.9.3 Further details on the Technical Data included in such Advanced Consultation Tool are set forth in Exhibit G. 

14.9.4 Access to the Advanced Consultation Tool software by the Buyer will be subject to ***. 

14.9.5 The revision service and the license to use Advanced Consultation Tool shall be *** for the duration of the corresponding Revision
Service Period. At the end of such Revision Service Period, the yearly revision service for the Advanced Consultation Tool and the associated license fee shall be provided to the Buyer under the commercial conditions set forth in the Seller’s
then current Customer Services Catalog. 
 14.10 On-Line Access to Technical Data 

14.10.1 Access to Airbus World shall be subject to the “General Terms and Conditions of Access to and Use of Airbus World” (the
“GTC”), as set forth in Exhibit H. 
 14.10.2 Access to Airbus World shall be *** of the Buyer’s users (including
*** Buyer’s Administrators) for the Technical Data related to the Aircraft which shall be operated by the Buyer. 
 14.10.3
Should Airbus World provide access to Technical Data in software format, the use of such software shall be further subject to *** 
 14.11 Waiver, Release and Renunciation 
 The Seller warrants that the
Technical Data are prepared in accordance with the state of art at the date of their conception. Should any Technical Data prepared by the Seller contain non-conformity or defect, the sole and exclusive liability of the Seller shall be to correct
such Technical Data. Notwithstanding the above, no warranties of any kind shall be given for the Customer Originated Changes. 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Agreement No.5	  	 	LA5-7	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 THE WARRANTIES, OBLIGATIONS AND LIABILITIES OF THE SELLER (AS DEFINED BELOW FOR THE PURPOSES
OF THIS CLAUSE) AND REMEDIES OF THE BUYER SET FORTH IN THIS CLAUSE 14 ARE EXCLUSIVE AND IN SUBSTITUTION FOR, AND THE BUYER HEREBY WAIVES, RELEASES AND RENOUNCES ALL OTHER WARRANTIES, OBLIGATIONS AND LIABILITIES OF THE SELLER AND RIGHTS, CLAIMS AND
REMEDIES OF THE BUYER AGAINST THE SELLER, EXPRESS OR IMPLIED, ARISING BY LAW, CONTRACT OR OTHERWISE, WITH RESPECT TO ANY NON-CONFORMITY OR DEFECT OF ANY KIND, IN ANY TECHNICAL DATA OR SERVICES DELIVERED UNDER THIS AGREEMENT, INCLUDING BUT NOT
LIMITED TO: 
 A. ANY WARRANTY AGAINST HIDDEN DEFECTS; 

B. ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS; 

C. ANY IMPLIED WARRANTY ARISING FROM COURSE OF PERFORMANCE, COURSE OF DEALING OR USAGE OR TRADE; 

D. ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY, WHETHER IN CONTRACT OR IN TORT, WHETHER OR NOT ARISING FROM THE
SELLER’S NEGLIGENCE, ACTUAL OR IMPUTED; AND 
 E. ANY OBLIGATION, LIABILITY, RIGHT, CLAIM, OR REMEDY FOR
LOSS OF OR DAMAGE TO ANY AIRCRAFT, COMPONENT, EQUIPMENT, ACCESSORY, PART, SOFTWARE, DATA OR SERVICES DELIVERED UNDER THIS AGREEMENT, FOR LOSS OF USE, REVENUE OR PROFIT, OR FOR ANY OTHER DIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES; 

PROVIDED THAT, IN THE EVENT THAT ANY OF THE AFORESAID PROVISIONS SHOULD FOR ANY REASON BE HELD UNLAWFUL OR OTHERWISE INEFFECTIVE, THE
REMAINDER OF THIS AGREEMENT SHALL REMAIN IN FULL FORCE AND EFFECT. 
 *** 

FOR THE PURPOSES OF THIS CLAUSE 14, THE “SELLER” SHALL BE UNDERSTOOD TO INCLUDE THE SELLER, ANY OF ITS SUPPLIERS AND
SUBCONTRACTORS, ITS AFFILIATES AND ANY OF THEIR RESPECTIVE INSURERS. 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Agreement No.5	  	 	LA5-8	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

 14.12 Proprietary Rights 

14.12.1 All proprietary rights, including but not limited to patent, design and copyrights, relating to Technical Data shall remain with
the Seller and/or its Affiliates as the case may be. These proprietary rights shall also apply to any translation into a language or languages or media that may have been performed or caused to be performed by the Buyer. 

14.12.2 Whenever this Agreement and/or any Technical Data provides for manufacturing by the Buyer, the consent given by the Seller shall
not be construed as express or implicit approval howsoever neither of the Buyer nor of the manufactured products. The supply of the Technical Data shall not be construed as any further right for the Buyer to design or manufacture any Aircraft or
part thereof or spare part. 
 14.13 Performance Engineer’s Program 

14.13.1 In addition to the Technical Data provided under Clause 14, the Seller shall provide to the Buyer Software Services, which shall
consist of the Performance Engineer’s Programs (“PEP”) for the Aircraft type covered under this Agreement. Such PEP is composed of software components and databases and its use is subject to the license conditions set forth in
Part 1 of Exhibit H “End-User License Agreement for Airbus Software”. 
 14.13.2 Use of the PEP shall be limited to ***
to be used on the Buyer’s computers for the purpose of computing performance engineering data. The PEP is intended for use on ground only and shall not be installed on board the Aircraft. 

14.13.3 The license to use the PEP and the revision service shall be provided *** of the corresponding Revision Service Period as set
forth in Clause 14.5. 
 14.13.4 At the end of such PEP Revision Service Period, the PEP shall be provided to the Buyer at the
standard commercial conditions set forth in the Seller’s then current Customer Services Catalog. 
 14.14 *** 

UNQUOTE 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Agreement No.5	  	 	LA5-9	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 

	3.	CLAUSE 15 – SELLER REPRESENTATIVE SERVICES 

 Clause 15 of the Agreement is amended as follows: 
  

	3.1	Customer Support Representative(s) 

 Clause 15.1.3 of the Agreement is deleted in its entirety and replaced with the following quoted text: 
 QUOTE 
 15.1.3 The Seller shall provide to the Buyer an annual written accounting
of the consumed man-months and any remaining man-month balance from the allowance defined in Appendix A to this Clause 15. Such accounting shall be deemed final and accepted by the Buyer unless the Seller receives written objection from the Buyer
within *** of receipt of such accounting. 
 UNQUOTE 

 

	3.2	Buyer’s Support 

  

	3.2.1	Clause 15.2.2 of the Agreement is deleted in its entirety and replaced with the following quoted text: 

QUOTE 
 15.2.2
The Buyer shall *** of the Seller Representatives of *** to and from their place of assignment and Toulouse, France. 
 UNQUOTE

  

	3.2.2	*** 

  

	3.3	Seller Representative 

Paragraph 1 of Appendix A to Clause 15 of the Agreement is deleted in its entirety and replaced with the following text between the QUOTE
and the UNQUOTE: 
 QUOTE 
 *** 
 UNQUOTE 

  

							
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	4.	CLAUSE 16 – TRAINING SUPPORT AND SERVICES 

 Clause 16 of the Agreement is deleted in its entirety and replaced with the following text between the QUOTE and UNQUOTE: 
 QUOTE 
  

	 	16 -	TRAINING SUPPORT AND SERVICES 

  

	 	16.1	General 

 16.1.1 This
Clause 16 sets forth the terms and conditions for the supply of training support and services for the Buyer’s personnel to support the Aircraft operation. 
 16.1.2 The range, quantity and validity of training to be provided *** under this Agreement are covered in Appendix A to this Clause 16. 

16.1.3 Scheduling of training courses covered in Appendix A shall be mutually agreed during a training conference (the “Training
Conference”) that shall be *** 
  

	 	16.2	Training Location 

 16.2.1
The Seller shall provide training at its training center in Blagnac, France, and/or in Hamburg, Germany, or shall designate an affiliated training center in Miami, U.S.A., or Beijing, China (each a “Seller’s Training Center”).

 16.2.2 If the unavailability of facilities or scheduling difficulties make training by the Seller at any Seller’s
Training Center impractical, the Seller shall ensure that the Buyer is provided with such training at another location designated by the Seller. 
 16.2.3 Upon the Buyer’s request, the Seller may also provide certain training at a location other than the Seller’s Training Centers, including one of the Buyer’s bases, if and when
practicable for the Seller, under terms and conditions to be mutually agreed upon. In such event, all additional *** charges listed in Clauses 16.5.2 and 16.5.3 shall be borne by the Buyer. 

16.2.4 If the Buyer requests training at a location as indicated in Clause 16.2.3 and requires such training to be an Airbus approved
course, the Buyer undertakes that the training facilities shall be approved prior to the performance of such training. The Buyer shall, as necessary and in due time prior to the performance of such training, provide access to the training facilities
set forth in Clause 16.2.3 to the Seller’s and the competent Aviation Authority’s representatives for approval of such facilities. 

  

							
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	 	16.3	Training Courses 

 16.3.1
Training courses shall be as described in the Seller’s customer services catalog (the “Seller’s Customer Services Catalog”). The Seller’s Customer Services Catalog also sets forth the minimum and maximum number
of trainees per course. *** 
 All training requests or training course changes made outside of the frame of the Training
Conference shall be submitted by the Buyer with a minimum of *** prior notice. 
 16.3.2 The following terms and conditions shall
apply to training performed by the Seller: 
 (i) Training courses shall be the Seller’s standard courses as
described in the Seller’s Customer Services Catalog valid at the time of execution of the course. The Seller shall be responsible for all training course syllabi, training aids and training equipment necessary for the organization of the
training courses; for the purpose of performing training, such training equipment does not include aircraft. 

(ii) The training equipment and the training curricula used for the training of flight, cabin and maintenance personnel
shall not be fully customized but shall be configured in order to obtain the relevant Aviation Authority’s approval and to support the Seller’s training programs. 

(iii) Training data and documentation for trainees receiving the training at the Seller’s Training Centers shall be
provided free of charge. Training data and documentation shall be marked “FOR TRAINING ONLY” and as such are supplied for the sole and express purpose of training; revisions of training data and documentation shall not be provided by the
Seller. 
 16.3.3 When the Seller’s training courses are provided by the Seller’s instructors (each an
“Instructor”) the Seller shall deliver a Certificate of Recognition or a Certificate of Course Completion (each a “Certificate”) or an attestation (an “Attestation”), as applicable, at the end of
any such training course. Any such Certificate or Attestation shall not represent authority or qualification by any Aviation Authority but may be presented to such Aviation Authority in order to obtain relevant formal qualification. 

In the event of training courses being provided by a training provider selected by the Seller as set forth in Clause 16.2.2, the Seller
shall cause such training provider to deliver a Certificate or Attestation, which shall not represent authority or qualification by any Aviation Authority, but may be presented to such Aviation Authority in order to obtain relevant formal
qualification. 
 16.3.4  Should the Buyer wish to *** 

  

							
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 16.3.5 Should the Buyer use none or only part of the training to be provided pursuant to
this Clause 16, no compensation or credit of any nature shall be provided. 
 16.3.6 Should the Buyer decide to cancel or
reschedule, fully or partially, and irrespective of the location of the training, a training course, a minimum advance notification of *** prior to the relevant training course start date is required. 

16.3.7 If the notification occurs *** prior to such training, *** shall be, as applicable, either deducted from the training allowance
defined in Appendix A or invoiced at the Seller’s then applicable price, *** 
 16.3.8 If the notification occurs *** prior
to such training, *** shall be, as applicable, either deducted from the training allowance defined in Appendix A or invoiced at the Seller’s then applicable price, *** 
 16.3.9 *** 
 16.3.10 *** 

 

	 	16.4	Prerequisites and Conditions 

 16.4.1 Training shall be conducted in English and all training aids used during such training shall be written in English using common aeronautical terminology. 

16.4.2 The Buyer hereby acknowledges that all training courses conducted pursuant to this Clause 16 are “Standard Transition Training
Courses” and not “Ab Initio Training Courses”. 
 16.4.3 Trainees shall have the prerequisite knowledge and
experience specified for each course in the Seller’s Customer Services Catalog. 
 16.4.4.1 The Buyer shall be responsible
for the selection of the trainees and for any liability with respect to the entry knowledge level of the trainees. 
 16.4.4.2
The Seller reserves the right to verify the trainees’ proficiency and previous professional experience. 
 16.4.4.3 The
Seller shall provide to the Buyer during the Training Conference an “Airbus Pre-Training Survey” for completion by the Buyer for each trainee. 
 The Buyer shall provide the Seller with an attendance list of the trainees for each course, with the validated qualification of each trainee, at the time of reservation of the training course and in no
event any later than *** before the start of the training course. The Buyer shall return concurrently thereto the completed Airbus Pre-Training Survey, 

  

							
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detailing the trainees’ associated background. If the Seller determines through the Airbus Pre-Training Survey that a trainee does not match the prerequisites set forth in the Seller’s
Customer Services Catalog, following consultation with the Buyer, such trainee shall be withdrawn from the program or directed through a relevant entry level training (ELT) program, which shall be at the Buyer’s expense. *** 

16.4.4.4 If the Seller reasonably determines at any time during the training that a trainee lacks the required qualifications, following
consultation with the Buyer, such trainee shall be withdrawn from the program. Upon the Buyer’s request, the Seller will recommend specific additional training, which shall be at the Buyer’s expense. 

16.4.5 The Seller shall in no case warrant or otherwise be held liable for any trainee’s performance as a result of any training
provided. 
 16.5 Logistics 
 16.5.1 Trainees 
 16.5.1.1 Living and travel expenses for the Buyer’s
trainees ***. 
 16.5.1.2 It will be the responsibility of the Buyer to make all necessary arrangements relative to
authorizations, permits and/or visas necessary for the Buyer’s trainees to attend the training courses to be provided hereunder. Rescheduling or cancellation of courses due to the Buyer’s failure to obtain any such authorizations, permits
and/or visas shall be subject to the provisions of Clauses 16.3.5.1 thru 16.3.5.3. 
 16.5.2 Training at External
Location—Seller’s Instructors 
 16.5.2.1 If, training is provided at the Seller’s request at any location
other than the Seller’s Training Centers, as provided for in Clause 16.2.2, the expenses of the Seller’s Instructors will be borne directly by the Seller. 
 16.5.2.2 If, at the Buyer’s request, training is provided by the Seller’s Instructor(s) at any location other than the Seller’s Training Centers, the Buyer *** related to the assignment of
such Seller Instructors and the performance of their duties as aforesaid. 
 16.5.2.3 Living Expenses 

Except as provided for in Clause 16.5.2.1 above, the Buyer *** 
 16.5.2.4 Air Travel 
 Except as provided for in Clause 16.5.2.1 above, the
Buyer *** to and from the Buyer’s designated training site and the Seller’s Training Centers. 

  

							
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 16.5.2.5 *** 
 16.5.3 Training Material and Equipment Availability—Training at External Location  
 Training material and equipment necessary for course performance at any location other than the Seller’s Training Centers or the facilities of a training provider selected by the Seller shall be
provided by the Buyer at its own cost in accordance with the Seller’s specifications. 
 Notwithstanding the foregoing,
should the Buyer request the performance of a course at another location as per Clause 16.2.3.1, the Seller may, upon the Buyer’s request, provide the training material and equipment necessary for such course’s performance. Such provision
shall be at the Buyer’s expense. 
 16.6  Flight Operations Training  

The Seller shall provide training for the Buyer’s flight operations personnel as further detailed in Appendix A to this Clause 16,
including the courses described in this Clause 16.6. *** 
 16.6.1 Flight Crew Training Course 

The Seller shall perform a flight crew training course program for the Buyer’s flight crews, each of which shall consist of two
(2) crew members, who shall be either captain(s) or first officer(s). 
 16.6.2 Base Flight Training  

16.6.2.1 The Buyer shall provide at its own cost its delivered Aircraft, or any other aircraft it operates, for any base flight training,
which shall consist of *** per pilot, performed in accordance with the related Airbus training course definition (the “Base Flight Training”). 
 16.6.2.2 Should it be necessary to ferry the Buyer’s delivered Aircraft to the location where the Base Flight Training shall take place, the additional flight time required for the ferry flight to
and/or from the Base Flight Training field shall not be deducted from the Base Flight Training time. 
 16.6.2.3 If the Base
Flight Training is performed outside of the zone where the Seller usually performs such training, the ferry flight to the location where the Base Flight Training shall take place shall be performed by a crew composed of the Seller’s and/or the
Buyer’s qualified pilots, in accordance with the relevant Aviation Authority’s regulations related to the place of performance of the Base Flight Training. 

  

							
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 16.6.3 Flight Crew Line Initial Operating Experience 

In order to assist the Buyer with initial operating experience after Delivery of the first Aircraft, the Seller shall provide to the Buyer
pilot Instructor(s) as set forth in Appendix A to this Clause 16. 
 Should the Buyer request, subject to the Seller’s
consent, such Seller pilot Instructors to perform any other flight support during the flight crew line initial operating period, such as but not limited to line assistance, demonstration flight(s), ferry flight(s) or any flight(s) required by the
Buyer during the period of entry into service of the Aircraft, it is understood that such flight(s) shall be deducted from the flight crew line initial operating experience allowance set forth in Appendix A hereto. 

It is hereby understood by the Parties that the Seller’s pilot Instructors shall only perform the above flight support services to
the extent they bear the relevant qualifications to do so. 
 16.6.4 Type Specific Cabin Crew Training Course 

The Seller shall provide type specific training for cabin crews, at one of the locations defined in Clause 16.2.1. 

If the Buyer’s Aircraft is to incorporate special features, the type specific cabin crew training course shall be performed no
earlier than *** 
 16.6.5 Training on Aircraft 
 During any and all flights performed in accordance with this Clause 16.6, the Buyer shall bear full responsibility for the aircraft upon which the flight is performed, including but not limited to any
required maintenance, all expenses such as fuel, oil or landing fees and the provision of insurance in line with Clause 16.13. 

The Buyer shall assist the Seller, if necessary, in obtaining the validation of the licenses of the Seller’s pilots performing Base
Flight Training or initial operating experience by the Aviation Authority of the place of registration of the Aircraft. 
 16.7
Performance / Operations Courses 
 The Seller shall provide performance/operations training for the Buyer’s
personnel as defined in Appendix A to this Clause 16. 
 The available courses shall be listed in the Seller’s Customer
Services Catalog current at the time of the course. 

  

							
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 16.8 Maintenance Training 

16.8.1 The Seller shall provide maintenance training for the Buyer’s ground personnel as further set forth in Appendix A to this
Clause 16. 
 The available courses shall be as listed in the Seller’s Customer Services Catalog current at the time of the
course. *** 
 The practical training provided in the frame of maintenance training shall be performed on the training devices in
use in the Seller’s Training Centers. 
 16.8.2 Practical Training on Aircraft 

Notwithstanding Clause 16.8.1 above, upon the Buyer’s request, the Seller may provide Instructors for the performance of practical
training on aircraft (“Practical Training”). 
 Irrespective of the location at which the training takes place,
the Buyer shall provide at its own cost an aircraft for the performance of the Practical Training. 
 Should the Buyer require
the Seller’s Instructors to provide Practical Training at facilities selected by the Buyer, such training shall be subject to prior approval of the facilities by the Seller. All costs related to such Practical Training, including but not
limited to the Seller’s approval of the facilities, *** 
 The provision of a Seller Instructor for the Practical Training
shall be deducted from the trainee days allowance defined in Appendix A to this Clause 16, subject to the conditions detailed in Paragraph 3.3.4 thereof. 
 16.9 Supplier and Propulsion Systems Manufacturer Training 
 Upon the
Buyer’s request, the Seller shall provide to the Buyer the list of the maintenance and overhaul training courses provided by major Suppliers and the applicable Propulsion Systems Manufacturer on their respective products. 

16.10 Proprietary Rights 
 All proprietary rights, including but not limited to patent, design and copyrights, relating to the Seller’s training data and documentation shall remain with the Seller and/or its Affiliates and/or
its Suppliers, as the case may be. 
 These proprietary rights shall also apply to any translation into a language or languages
or media that may have been performed or caused to be performed by the Buyer. 
 16.11 Use of Training Materials

 *** 

  

							
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 APPENDIX “A” TO CLAUSE 16 

TRAINING ALLOWANCE 
 All quantities indicated below are the total quantities granted for the whole of the Buyer’s fleet of A350XWB Aircraft firmly ordered, unless otherwise specified. 

The contractual training courses defined in this Appendix A shall be provided *** 

Except with respect to EIS Training (defined below), flight operations training courses granted per firmly ordered Aircraft in this
Appendix A shall be provided by the Seller *** 
 *** 
 Any deviation to said training delivery schedule will be agreed between the Buyer and the Seller. 
  

	 	1.	FLIGHT OPERATIONS TRAINING 

  

	 	1.1	Flight Crew Training (standard transition course) 

 The Seller shall provide flight crew training (standard transition course) *** for a total of *** of the Buyer’s flight crews. 

 

	 	1.2	Extended Range For Twin Engine Aircraft Operations (ETOPS) Training 

 The Seller shall provide *** ETOPS training for a total of *** of the Buyer’s flight crews. 
  

	 	1.3	Low Visibility Operations Training 

 The Seller shall provide *** Low Visibility Operations Training for a total of *** of the Buyer’s flight crews. 
  

	 	1.4	Flight Crew Line Initial Operating Experience 

 The Seller shall provide to the Buyer pilot Instructor(s) *** for a period of *** 

Unless otherwise agreed during the Training Conference, in order to follow the Aircraft Delivery schedule, the maximum number of pilot
Instructors present at any one time shall be limited to *** pilot Instructors. 
  

	 	1.5	Type Specific Cabin Crew Training Course 

  

							
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 The Seller shall provide to the Buyer *** type specific training for cabin crews for *** of
the Buyer’s cabin crew instructors, pursers or cabin attendants. 
  

	 	1.6	Airbus Pilot Instructor Course (APIC) 

 The Seller shall provide to the Buyer transition Airbus Pilot Instructor Course(s) (APIC), for flight and synthetic instruction, *** for *** of the Buyer’s flight instructors. APIC courses shall be
performed in groups of *** trainees. 
  

	 	2.	PERFORMANCE / OPERATIONS COURSE(S) 

 The Seller shall provide to the Buyer *** trainee days of performance / operations training *** for the Buyer’s personnel. 

 

	 	3.	MAINTENANCE TRAINING 

 3.1
The Seller shall provide to the Buyer four thousand two hundred (4,200) trainee days of maintenance training free of charge for the Buyer’s personnel. 
 3.2 The Seller shall provide to the Buyer *** Engine Run-up courses consisting of up to *** trainees per course. 
  

	 	4.	TRAINEE DAYS ACCOUNTING 

Trainee days are counted as follows: 
 4.1 For instruction at the Seller’s Training Centers: *** day of instruction for *** trainee equals *** trainee day. The number of trainees originally registered at the beginning of the course shall
be counted as the number of trainees to have taken the course. 
 4.2 For instruction outside of the Seller’s Training
Centers: *** day of instruction by *** Seller Instructor equals the actual number of trainees attending the course or a ***, except for structure maintenance training course(s). 

4.3 For structure maintenance training courses outside the Seller’s Training Center(s), *** day of instruction by *** Seller
Instructor equals the actual number of trainees attending the course or the *** of trainees as indicated in the Seller’s Customer Services Catalog. 
 4.4 For practical training, whether on training devices or on aircraft, *** day of instruction by *** Seller Instructor equals the actual number of trainees attending the course or ***. 

UNQUOTE 

  

							
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	5.	CLAUSE 17 – EQUIPMENT SUPPLIER PRODUCT SUPPORT 

 Sub-clause (ii) of Clause 17.1.2 of the Agreement is deleted in its entirety and replaced with the following quoted text: 
 QUOTE 
  

	 	(ii)	*** 

 UNQUOTE 

 

	6.	*** 

  

							
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	7.	ASSIGNMENT 

 This Letter
Agreement and the rights and obligations of the parties will be subject to the provisions of Clause 21 of the Agreement. 
  

	8.	CONFIDENTIALITY 

 This
Letter Agreement is subject to the terms and conditions of Clause 22.10 of the Agreement. 
  

	9.	COUNTERPARTS 

 This Letter
Agreement may be executed by the parties hereto in separate counterparts, each of which when so executed and delivered shall be an original, but all such counterparts shall together constitute one and the same instrument. 

  

							
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 If the foregoing correctly sets forth our understanding, please execute the original and one (1) copy
hereof in the space provided below and return a copy to the Seller. 
  

			
	 Very truly yours,
  

AIRBUS S.A.S.

		
	By:	 	/s/ John J. Leahy
	Its:	 	 Chief Operating Officer

Customers

  

			
	 Accepted and Agreed
  

UNITED AIRLINES, INC.

		
	By:	 	/s/ Gerald Laderman
	Its:	 	Senior Vice President & Treasurer

  

							
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