US Airways 2007 Annual Report Download - page 551

5 GUARANTEE CONDITIONS
5.1 The performance and noise certification requirements for the New A321 (CFM Powered) Aircraft, except where otherwise noted, will be as stated in
Section **
5.2 For the determination of FAR take-off and landing performance a hard level dry runway surface with no runway strength limitations, no obstacles, no
line-up allowances, zero wind, atmosphere according to **, except as otherwise noted and the use of speedbrakes, flaps, landing gear and engines in the
conditions liable to provide the best results **
5.2.1 When establishing take-off and second segment performance **
5.3 The en-route one engine inoperative climb performance will be established with the amount of engine air bleed associated with the maximum cabin
altitude as specified in ** and an average ventilation rate not less than the amount defined in **but no air will be bled from the engines for anti-icing.
5.4 Climb, cruise and descent performance associated with the Guarantees will include allowances for normal electrical load and for normal engine air
bleed and power extraction associated with maximum cabin differential pressure as defined in ** Cabin air conditioning management during
performance demonstration as described in paragraph 6.3 below may be such as to optimize the New A321 (CFM Powered) Aircraft performance while
meeting the **
5.5 The engines will be operated using not more than **
5.6 Where applicable the Guarantees assume the use of an approved fuel having a density of **
5.7 Speech interference level (SIL) is defined as the arithmetic average of the sound pressure levels **. A-weighted sound pressure level (dB(A)) is as
defined in the **
5.8 All guaranteed interior noise levels refer to an aircraft with standard acoustic insulation, an interior completely furnished and equipped with standard
cloth seats. The effect of Buyer furnished equipment other than standard passenger cloth seats (standard seats or acoustically equivalent) shall be the
responsibility of the Buyer **
Effects on noise of Buyer furnished equipment and installations by or on behalf of the Buyer are not covered by this guarantee.
6 GUARANTEE COMPLIANCE
** Confidential Treatment Requested.
USA — Amended and Restated Airbus A320 Family Purchase Agreement LA 8F-1 — 17 of 22
EXECUTION PRIVILEGED AND CONFIDENTIAL