Delta Airlines 2014 Annual Report Download - page 319

The [***] of the Aircraft as defined in Paragraph 1 herein and [***] according to Section [***] of the Standard
Specification and subject to adjustments as defined in Paragraph 7.2 herein [***].
The A330-
900neo powered by RR Trent 7000 engines [***] as defined in Paragraph 1 herein shall be certified in
accordance with the requirements of Chapter 4 of ICAO Annex 16, Volume I, [***].
Noise data shall be obtained and evaluated in accordance with the requirements of Appendix 2 of Third Edition of
ICAO Annex 16, Volume I.
At a pressure altitude of [***], the guaranteed A-
weighted Sound Pressure Level (SPL) and the SIL (as defined in
Paragraph 5.6 herein) shall be as follows:
Noise levels shall be measured at the Captain’s and First Officer’
s seat position at head level with normal cockpit air
conditioning and ventilation in operation.
At a pressure altitude of [***], the guaranteed A-
weighted Sound Pressure Level (SPL) and the SIL (as defined in
Paragraph 5.6 herein) shall be as follows:
Noise levels shall be measured at a height of 40 inches (1.0 m) above the passenger compartment floor on the aisle
center lines in the passenger seating area.
[***] CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO
A REQUEST FOR CONFIDENTIAL TREATMENT
4
SOUND LEVELS
4.1 Exterior Noise -
Acoustic Certification Levels
4.2
Interior Noise During Flight
4.2.1
Cockpit
[***] [***]
[***] [***]
[***] [***]
4.2.2
Cabin
[***] [***]
[***] [***]
[***] [***]
5
GUARANTEE CONDITIONS