US Airways 2007 Annual Report Download - page 1158

1 PREAMBLE
1.1 AIRCRAFT CONFIGURATION
The guarantee set forth in this Letter Agreement is applicable to the A350-800 XWB Aircraft powered by Rolls Royce Trent XWB engines, as described in
the Standard Specification **and in the Aircraft Description Document ** hereinafter referred as the "Specification" without taking into account any
further changes thereto as provided in the Agreement.
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8 TERMINATION
8.1 This Letter Agreement and the obligations of the Seller hereunder will terminate **after the first revenue flight of the first Aircraft delivered to the Buyer.
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11 ASSIGNMENT
Except as set forth in Clause 20.2 of the Agreement, this Letter Agreement and the rights and obligations of the Buyer hereunder will not be assigned or
transferred in any manner without prior written consent of the Seller and any attempted assignment or transfer in contravention of the provisions of this
sentence will be void and of no force and effect.
12 COUNTERPARTS
This Letter Agreement may be signed in any number of separate counterparts. Each counterpart, when signed and delivered (including counterparts
delivered by facsimile transmission), will be an original, and the counterparts will together constitute one and the same instrument.
** Confidential Treatment Requested.
USA — Amended and Restated Airbus A350 XWB Purchase Agreement LA 12 — 2 of 5
EXECUTION PRIVILEGED AND CONFIDENTIAL