US Airways 2007 Annual Report Download - page 1102

Guarantee
(a 2 dB extra is accounted for leather seats installation)
SPL dB(A) **
SIL dB **
Noise levels will be measured at a height of ** above the passenger compartment floor on the aisle center lines in the passenger seated area. Effects on
noise of Buyer furnished equipment and installations by or on behalf of the Buyer are not covered by this guarantee. The noise levels are provided for
leather seats.
6 EMISSIONS (for information only)
The Seller's position is that the Propulsion Systems manufacturer directly provides the Buyer with an aircraft engine emissions guarantee. Consequently
the following is a reminder (for information only) of the regulations the engine will have to comply with during its certification.
The RR Trent XWB engines will have to meet the emission levels for Smoke as defined in ICAO Annex 16, Volume II Aircraft Engine Emissions', Second
Edition effective 11th November 1993, section 2.2.2.
The RR Trent XWB engines will have to meet the emission levels for Unburned Hydrocarbons (HC), Carbon Monoxide (CO) as defined in ICAO Annex
16, Volume II Aircraft Engine Emissions', Second Edition effective 11th November 1993, section 2.3.2.
The RR Trent XWB engines will have to meet the emission levels for Oxides of Nitrogen (NOx) as specified in the ICAO Annex 16, Volume II Aircraft
Engine Emissions', Second Edition effective 11th November 1993, Chapter 2.3.2d (CAEP/6).
Engine emission data will be obtained and evaluated in accordance with the requirements of the ICAO Annex 16, Volume II Aircraft Engine Emissions',
Second Edition effective 11th November 1993.
** Confidential Treatment Requested.
USA — Amended and Restated Airbus A350 XWB Purchase Agreement
EXECUTION
LA 8-1.B — 13 of 18
PRIVILEGED AND CONFIDENTIAL