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United States Department of Transportation United States Department of Transportation

AC 20-133 - Cockpit Noise and Speech Interference Between Crewmember

Document Information

Number
20-133
Title
Cockpit Noise and Speech Interference Between Crewmember
Status
Active
Date issued
1989-03-22
Office of Primary Responsibility
AIR-130, Aviation Safety - Aircraft Certification Service, Aircraft Engineering Division
Description
Provides information about the relationship between flight crew members cockpit voice communication and cockpit noise levels. Guidance, on speech interference levels, noise measurement and measurement systems, and methods to improve cockpit communication, is provided for those manufacturers, owners or operators who believe cockpit noise may be a problem on their aircraft. This guidance material is relevant to the operation of all types of civil aircraft.
Content