Cockpit noise and speech interference between crewmembers.

Bibliographic Details
Corporate Author:	United States. Federal Aviation Administration
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : U.S. Dept. of Transportation, Federal Aviation Administration, [1989]
Series:	Advisory circular ; AC no. 20-133
Subjects:	Airplanes > Cockpits > Noise. Aircraft cabins > Noise.
Online Access:	https://purl.fdlp.gov/GPO/LPS104258

Description
Item Description:	"3/22/89." Title from PDF file caption (viewed Oct. 21, 2008). Electronic resource.
Physical Description:	1 volume (various pagings) : digital, PDF file.
Format:	Mode of access: Internet at the FAA web site. Address as of 10/21/08: http://www.airweb.faa.gov/Regulatory%5Fand%5FGuidance%5FLibrary/rgAdvisoryCircular.nsf/0/ef8f143bcb65f0ac862569c3006c17d6/$FILE/AC20-133.pdf ; current access available via PURL.