Importance of transponder operation and altitude reporting.
| Author/creator | United States |
| Format | Electronic |
| Publication Info | [Washington, D.C.] : Dept. of Transportation, Federal Aviation Administration, [1977] |
| Description | 2 p. : digital, PDF file |
| Supplemental Content | https://purl.fdlp.gov/GPO/LPS107894 |
| Subjects |
| Series | Advisory circular ; AC no. 91-50 United States. Federal Aviation Administration. Advisory circular ; AC 91-50. ^A500611 |
| General note | Title from PDF caption (viewed Jan. 22, 2009). |
| General note | "8/24/77." |
| General note | GPO Cataloging Record Distribution Program (CRDP). |
| Technical details | Mode of access: Internet at the FAA web site. Address as of 1/22/09: http://www.airweb.faa.gov/Regulatory%5Fand%5FGuidance%5FLibrary/rgAdvisoryCircular.nsf/0/276607e86c52126c862569e70077c8d1/$FILE/AC91-50.pdf; current access available via PURL. |
| Issued in other form | United States. Federal Aviation Administration. Importance of transponder operation and altitude reporting 2 p. |
| GPO item number | 0431-A-27 (online) |
| Govt. docs number | TD 4.8/5:91-50 |