Airworthiness approval of global navigation satellite system (GNSS) equipment.
Series: Advisory circular -- AC-20-138 A.
Publisher: U.S. Dept. of Transportation, Federal Aviation Administration
Published: 2003
Place of publication: [Washington, D.C.]
Language: eng
Subjects: Global Positioning System.; Artificial satellites in navigation.
Notes: Cover title.

"December 22, 2003."

Shipping list no.: 2004-0124-P.

Also available via Internet from FAA web site. Address as of 7/12/04: http://www.airweb.faa.gov/Regulatory%5Fand%5FGuidance%5FLibrary/rgAdvisoryCircular.nsf/0/8a2ae2491c85226f86256e35004c638b/$FILE/AC20-138A.pdf; current access available via PURL.