Special flight permits for operation of overweight aircraft.

Bibliographic Details
Corporate Author:	United States. Federal Aviation Administration
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.] : Federal Aviation Administration, [1969]
Series:	Advisory circular ; AC no. 21-4B
Subjects:	Airplanes > Weight > Certification.
Online Access:	https://purl.fdlp.gov/GPO/LPS104629

Description
Item Description:	AC 21-4A, effective 9/16/66, is cancelled. Title from PDF file caption (viewed Oct. 28, 2008). Electronic resource.
Physical Description:	4, 4 pages : digital, PDF file.
Format:	Mode of access: Internet at the FAA web site. Address as of 10/28/08: http://www.airweb.faa.gov/Regulatory%5Fand%5FGuidance%5FLibrary/rgAdvisoryCircular.nsf/0/f140afbada22bf78862569d2005c2e0c/$FILE/ac21-4b.pdf ; current access available via PURL.