Narrative:

This aircraft had previous write-ups regarding noise in cockpit. We once again wrote this up as unacceptable in flight. We briefed maintenance at ZZZ that we flew entire trip with right (rh) recirculation (recirc) fan in the 'off' position and noise level was at a dangerous level; missing numerous radio calls. I write these reports knowing that our air carrier has no intention of fixing these problems. My purpose now is to attempt to convince the FAA representative that unless something is done to correct this dangerous situation; it is only a matter of time before we have an accident; due to a mis-communication with ATC; during all phases of flight.numerous pilots have taken it upon themselves to purchase expensive headsets to remedy this problem. The next day I checked our computer's maintenance history for the B757-200; only to find the rh recirc fan deferred; and the aircraft sent back out to the line in the exact same condition we left it in ZZZ. This is unacceptable and in my opinion; dangerous. If assigned this aircraft in the future with nothing else done to correct this problem; I will refuse this aircraft as unsafe.

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Original NASA ASRS Text

Title: A Captain reports about a continuing problem with excessive flight deck airflow noise levels in the B757-200 aircraft from the air conditioning system that interferes with ATC communications during all phases of flight.

Narrative: This aircraft had previous write-ups regarding noise in cockpit. We once again wrote this up as unacceptable in flight. We briefed Maintenance at ZZZ that we flew entire trip with Right (Rh) Recirculation (Recirc) fan in the 'Off' position and noise level was at a dangerous level; missing numerous Radio calls. I write these reports knowing that our air carrier has no intention of fixing these problems. My purpose now is to attempt to convince the FAA Representative that unless something is done to correct this dangerous situation; it is only a matter of time before we have an accident; due to a mis-communication with ATC; during all phases of flight.Numerous Pilots have taken it upon themselves to purchase expensive headsets to remedy this problem. The next day I checked our computer's Maintenance history for the B757-200; only to find the Rh Recirc fan deferred; and the aircraft sent back out to the Line in the exact same condition we left it in ZZZ. This is unacceptable and in my opinion; dangerous. If assigned this aircraft in the future with nothing else done to correct this problem; I will refuse this aircraft as unsafe.

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.