| AD Number | 80-25-04 | Status | Active |
| Effective Date | January 02, 1981 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-3983 |
| Product Type | ["Aircraft"] | Product Subtype | ["Large Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Lockheed Martin Corporation |
| Model(s) | L-1011-385-1 L-1011-385-1-14 L-1011-385-1-15 L-1011-385-3 |
80-25-04 LOCKHEED-CALIFORNIA COMPANY: Amendment 39-3983. Applies to Model L-1011 series airplanes certificated in all categories.
Compliance is required as indicated, unless already accomplished.
To prevent fuel leakage of specified fuel shut-off valves which could result in fire hazard accomplish the following:
(a) Within 600 hours' time in service from the effective date of this AD, modify Whittaker fuel shut-off valves (12 per airplane) identified in paragraph 2.A of Lockheed Service Bulletin 093-28-062 Revision 1 dated August 20, 1980 by the dated May 20, 1980. Valve assemblies with a gold anodized valve cover have been previously reworked and do not require further modification per this AD.
(b) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections required by this AD.
(c) Alternative inspections, modifications or other actions which provide an equivalent level of safety may be used when approved by the Chief, Los Angeles Area Aircraft Certification Office, FAA Northwest Region.
The manufacturers specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1).
All persons affected by this directive who have not already received these documents from the manufacturer, may obtain copies upon request to Lockheed-California Company, P.O. Box 551, Burbank, California 91520, Attention: Commercial Support Contracts. These documents may also be examined at FAA Northwest Region, 9010 East Marginal Way South, Seattle, Washington 98108 or 15000 Aviation Boulevard, Hawthorne, California 90261, Room 6W14.
This amendment becomes effective January 2, 1981.