Airworthiness approval of global navigation satellite system (GNSS) equipment.

Bibliographic Details

Corporate Author:	United States. Federal Aviation Administration
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.] : U.S. Dept. of Transportation, Federal Aviation Administration, [2003]
Series:	Advisory circular ; AC-20-138 A
Subjects:	Global Positioning System. Artificial satellites in navigation.
Online Access:	https://purl.fdlp.gov/GPO/LPS51458