**Confidential Treatment Requested****2**. **CANCELLATION**The Buyer and the Seller hereby confirm that the fifteen (15) A318 Aircraft are cancelled pursuantto the terms of Letter Agreement No. 3 to the Agreement.**3.****CONVERSION**Pursuant to the terms of Letter Agreement No. 3 to the Agreement, the Buyer hereby irrevocablyexercises its right to convert one (1) New A319 Aircraft to one (1) Converted New A320 Aircraft asfollows:3.1 One (1) New A319 Aircraft with ***** is converted to one (1) Converted New A320 Aircraft with*****.3.2 Exhibit B to Amendment No. 1 to the Agreement is deleted in its entirety and replaced withExhibit B attached to this Amendment summarizing conversions as of the date hereof.**4.****DELIVERY SCHEDULE**The delivery schedule table set forth in Clause 9.1.1 of the Agreement is deleted in its entiretyand replaced with the delivery schedule table below between the QUOTE and the UNQUOTE:QUOTE             **Rank** ********* **Aircraft** ********* ********* **Year** 1 ***** Original A321 Aircraft ***** *****  2008 2 ***** Original A321 Aircraft ***** *****  2008 3 ***** Original A321 Aircraft ***** *****  2008 4 ***** Original A321 Aircraft ***** *****  2008 5 ***** Original A321 Aircraft ***** *****  2008 6 ***** Original A321 Aircraft ***** *****  2009 7 ***** Original A321 Aircraft ***** *****  2009 8 ***** Original A321 Aircraft ***** *****  2009 9 ***** Original A321 Aircraft ***** *****  2009 10 ***** Original A321 Aircraft ***** *****  2009 11 ***** Original A321 Aircraft ***** *****  2009 12 ***** Original A321 Aircraft ***** *****  2009 13 ***** Original A321 Aircraft ***** *****  2009 14 ***** Converted Original A321 Aircraft ***** *****  2009 15 ***** Original A321 Aircraft ***** *****  2009 16 ***** Converted Original A321 Aircraft ***** *****  2009 17 ***** Converted Original A321 Aircraft ***** *****  2009 18 ***** Converted Original A321 Aircraft ***** *****  2009 19 ***** Original A321 Aircraft ***** *****  2009 20 ***** Converted Original A321 Aircraft ***** *****  2009 21 ***** Converted Original A320 Aircraft ***** *****  2009 22 ***** Converted Original A321 Aircraft ***** *****  2009     ***** Confidential portions of the material have been omitted and filed separately with the Securities and Exchange Commission.
 
 

 
**Confidential Treatment Requested**             **Rank** ********* **Aircraft** ********* ********* **Year** 23 ***** Converted Original A321 Aircraft ***** *****  2009 24 ***** Converted Original A320 Aircraft ***** *****  2009 25 ***** Converted Original A321 Aircraft ***** *****  2009 26 ***** Converted Original A320 Aircraft ***** *****  2010 27 ***** Converted Original A320 Aircraft ***** *****  2010 28 ***** Converted New A320 Aircraft ***** *****  2010 29 ***** Converted Original A320 Aircraft ***** *****  2010 30 ***** New A320 Aircraft ***** *****  2010 31 ***** Converted Original A320 Aircraft ***** *****  2010 32 ***** New A321 Aircraft ***** *****  2010 33 ***** Converted Original A320 Aircraft ***** *****  2010 34 ***** Converted Original A320 Aircraft ***** *****  2010 35 ***** Converted Original A321 Aircraft ***** *****  2010 36 ***** Converted Original A321 Aircraft ***** *****  2010 37 ***** Converted New A321 Aircraft ***** *****  2010 38 ***** Converted Original A320 Aircraft ***** *****  2010 39 ***** New A321 Aircraft ***** *****  2010 40 ***** Converted Original A320 Aircraft ***** *****  2010 41 ***** Converted Original A320 Aircraft ***** *****  2010 42 ***** Converted Original A320 Aircraft ***** *****  2010 43 ***** Converted New A321 Aircraft ***** *****  2010 44 ***** Converted New A320 Aircraft ***** *****  2011 45 ***** New A320 Aircraft ***** *****  2011 46 ***** New A320 Aircraft ***** *****  2011 47 ***** New A320 Aircraft ***** *****  2011 48 ***** New A321 Aircraft ***** *****  2011 49 ***** New A319 Aircraft ***** *****  2011 50 ***** New A320 Aircraft ***** *****  2011 51 ***** New A319 Aircraft ***** *****  2011 52 ***** New A320 Aircraft ***** *****  2011 53 ***** New A320 Aircraft ***** *****  2011 54 ***** New A320 Aircraft ***** *****  2011 55 ***** New A321 Aircraft ***** *****  2011 56 ***** New A319 Aircraft ***** *****  2011 57 ***** New A320 Aircraft ***** *****  2011 58 ***** New A320 Aircraft ***** *****  2011 59 ***** New A320 Aircraft ***** *****  2011 60 ***** New A320 Aircraft ***** *****  2011 61 ***** New A321 Aircraft ***** *****  2011 62 ***** New A319 Aircraft ***** *****  2011 63 ***** New A320 Aircraft ***** *****  2011 64 ***** New A321 Aircraft ***** *****  2011 65 ***** New A319 Aircraft ***** *****  2011     ***** Confidential portions of the material have been omitted and filed separately with the Securities and Exchange Commission. 
 

 
**Confidential Treatment Requested**             **Rank** ********* **Aircraft** ********* ********* **Year** 66 ***** New A320 Aircraft ***** *****  2011 67 ***** New A320 Aircraft ***** *****  2011 68 ***** New A319 Aircraft ***** *****  2011 69 ***** New A320 Aircraft ***** *****  2011 70 ***** New A321 Aircraft ***** *****  2011 71 ***** New A320 Aircraft ***** *****  2011 72 ***** New A320 Aircraft ***** *****  2011 73 ***** New A321 Aircraft ***** *****  2011 74 ***** New A320 Aircraft ***** *****  2012 75 ***** New A320 Aircraft ***** *****  2012 76 ***** New A319 Aircraft ***** *****  2012 77 ***** New A320 Aircraft ***** *****  2012 78 ***** New A320 Aircraft ***** *****  2012 79 ***** New A320 Aircraft ***** *****  2012 80 ***** New A320 Aircraft ***** *****  2012 81 ***** New A320 Aircraft ***** *****  2012 82 ***** New A320 Aircraft ***** *****  2012 83 ***** New A320 Aircraft ***** *****  2012 84 ***** New A320 Aircraft ***** *****  2012 85 ***** New A321 Aircraft ***** *****  2012 86 ***** New A320 Aircraft ***** *****  2012 87 ***** New A320 Aircraft ***** *****  2012 88 ***** New A320 Aircraft ***** *****  2012 89 ***** New A320 Aircraft ***** *****  2012 90 ***** New A320 Aircraft ***** *****  2012 91 ***** New A319 Aircraft ***** *****  2012 92 ***** New A320 Aircraft ***** *****  2012 93 ***** New A321 Aircraft ***** *****  2012 94 ***** New A320 Aircraft ***** *****  2012 95 ***** New A320 Aircraft ***** *****  2012 96 ***** New A320 Aircraft ***** *****  2012 97 ***** New A320 Aircraft ***** *****  2012 UNQUOTE**5. **The table set forth in Paragraph 4.2 of Letter Agreement No. 7 to the Agreement is deleted inits entirety and replaced with the table set forth below:    ***** Confidential portions of the material have been omitted and filed separately with the Securities and Exchange Commission.
 
 

 
**Confidential Treatment Requested**           ********* **Aircraft** ********* **Year**1 ***** Original A321 Aircraft ***** 20092 ***** Original A321 Aircraft ***** 20093 ***** Original A321 Aircraft ***** 20094 ***** Original A321 Aircraft ***** 20095 ***** Original A321 Aircraft ***** 20096 ***** Converted Original A321 Aircraft ***** 20097 ***** Converted Original A321 Aircraft ***** 20098 ***** Converted Original A320 Aircraft ***** 20109 ***** Converted Original A320 Aircraft ***** 201010 ***** Converted Original A320 Aircraft ***** 201011 ***** Converted Original A320 Aircraft ***** 201012 ***** Converted Original A320 Aircraft ***** 201013 ***** Converted Original A320 Aircraft ***** 201014 ***** Converted Original A321 Aircraft ***** 201015 ***** Converted Original A321 Aircraft ***** 201016 ***** Converted Original A320 Aircraft ***** 201017 ***** Converted Original A320 Aircraft ***** 201018 ***** Converted Original A320 Aircraft ***** 201019 ***** Converted Original A320 Aircraft ***** 2010**6.****EFFECT OF AMENDMENT****6.1** The provisions of this Amendment constitute a valid amendment to the Agreement and theAgreement will be deemed to be amended to the extent herein provided and, except asspecifically amended hereby, will continue in full force and effect in accordance with itsoriginal terms. This Amendment supersedes any previous understandings, commitments, orrepresentations whatsoever, whether oral or written, related to the subject matter of thisAmendment.**6.2** Both parties agree that this Amendment will constitute an integral, nonseverable part of theAgreement, that the provisions of said Agreement are hereby incorporated herein by reference,and that this Amendment will be governed by the provisions of the Agreement, except that ifthe Agreement and this Amendment have specific provisions that are inconsistent, the specificprovisions contained in this Amendment will govern.**7.****CONFIDENTIALITY**This Amendment is subject to the confidentiality provisions set forth in Clause 22.7 of theAgreement.    ***** Confidential portions of the material have been omitted and filed separately with the Securities and Exchange Commission.
 
 

 
**Confidential Treatment Requested****8.****COUNTERPARTS**This Amendment may be signed in separate counterparts. Each counterpart, when signed and delivered(including counterparts delivered by facsimile transmission), will be an original, and thecounterparts will together constitute one and the same instrument.    ***** Confidential portions of the material have been omitted and filed separately with the Securities and Exchange Commission.
 
 

 
**Confidential Treatment Requested**IN WITNESS WHEREOF, these presents were entered into as of the day and year first above written.         US AIRWAYS, INC.   AIRBUS S.A.S.         By: /s/ Thomas T. Weir   By: /s/ Christophe Mourey        Its: Vice President and Treasurer    Its:  Senior Vice President Contracts    ***** Confidential portions of the material have been omitted and filed separately with the Securities and Exchange Commission.
 
 

 
Exhibit BConversion Schedule*****    ***** Confidential portions of the material have been omitted and filed separately with the Securities and Exchange Commission.*PRIVILEGED AND CONFIDENTIAL
 
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