US Airways 2007 Annual Report Download - page 809

6.5 Where applicable the Guarantees assume the use of an approved fuel having a density of ** per US gallon and a lower heating value of **.
6.6 Speech Interference Level (SIL) is defined as the arithmetic average of the sound pressure levels in the **. A-Weighted sound pressure level (dB(A)) is
as defined in the American National Standard Specification ANSI.4-1971.
6.7 All guaranteed interior noise levels refer to an A340-300 Aircraft with standard acoustic insulation and an interior completely furnished. The effect of
Buyer furnished equipment other than standard passenger cloth seats 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.
7 GUARANTEE COMPLIANCE
7.1 Compliance with the Guarantees shall be demonstrated using operating procedures and limitations in accordance with those defined by the certifying
Airworthiness Authority and by the Seller unless otherwise stated.
7.2 Compliance with the take-off, second segment, en-route one engine inoperative, approach climb and landing elements of the Guarantees will be
demonstrated with reference to the approved Flight Manual.
7.3 Compliance with those parts of the Guarantees defined in paragraph 2 and 3 above not covered by the requirements of the certifying Airworthiness
Authority shall be demonstrated by calculation based on data obtained during flight tests conducted on one (or more, at the Seller's discretion) aircraft
of the same aerodynamic configuration as the Aircraft and incorporated in the In-Flight Performance Program and data bases ("the IFP") appropriate to
the Aircraft.
7.4 Compliance with the Structure Usable Load guarantee defined in Paragraph 4 shall be demonstrated with reference to a weight compliance report.
7.5 The approved A340-300 Aircraft flight manual shall be used to demonstrate compliance with the guarantees of certification noise levels.
7.6 Compliance with the interior noise guarantees shall be demonstrated with reference to noise surveys conducted on one (or more, at the Seller's
discretion) A340-300 Aircraft of an acoustically equivalent standard to those A340-300 Aircraft purchased by the Buyer.
7.7 Data derived from flight tests and noise surveys shall be adjusted as required using conventional methods of correction, interpolation or extrapolation in
accordance with established aeronautical practices to show compliance with the Guarantees.
LA 8E — 20 of 24
USA — Airbus A330 Purchase Agreement
EXECUTION
**Confidential Treatment Requested.
PRIVILEGED AND CONFIDENTIAL