An air carrier captain reported the noise level is so high in the B757 cockpit that it is fatiguing ...

Attributes
ACN	836239
Time
Date	200905
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Plan	IFR
Component
Aircraft Component	Air Conditioning Distribution System
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

Narrative:

Extremely noisy cockpit. ATC radio calls missed and difficult to hear checklist items and responses. Cockpit airflow is not muffled and the high decibel environment is distracting and fatiguing. Promises were made by equipment manager about 1 year ago that this issue would be fixed with boeing support. To this date I suspect that no modifications have been done on any of the 757 fleet. The fatigue level is so great that it has a direct impact on safety. When the affected aircraft are flown on ETOPS routes longer than 5 hrs; a relief pilot should be scheduled to allow some 'decompression' from the noisy and fatiguing cockpit environment.

Original NASA ASRS Text

Title: An air carrier Captain reported the noise level is so high in the B757 cockpit that it is fatiguing and distracting. He stated action was promised a year ago but still no progress noted.

Narrative: Extremely noisy cockpit. ATC radio calls missed and difficult to hear checklist items and responses. Cockpit airflow is not muffled and the high decibel environment is distracting and fatiguing. Promises were made by equipment manager about 1 year ago that this issue would be fixed with Boeing support. To this date I suspect that no modifications have been done on any of the 757 fleet. The fatigue level is so great that it has a direct impact on safety. When the affected aircraft are flown on ETOPS routes longer than 5 hrs; a Relief Pilot should be scheduled to allow some 'decompression' from the noisy and fatiguing cockpit environment.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

An air carrier captain reported the noise level is so high in the B757 cockpit that it is fatiguing and distracting. He stated action was promised a year ago but still no progress noted.