AD 80-25-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | L-1011-385-1 | LOCKHEED-CALIFORNIA COMPANY Model L-1011 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-14 | LOCKHEED-CALIFORNIA COMPANY Model L-1011 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-15 | LOCKHEED-CALIFORNIA COMPANY Model L-1011 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-3 | LOCKHEED-CALIFORNIA COMPANY Model L-1011 Series Airplanes |
Unsafe Condition
Fuel leakage of specified Whittaker fuel shut-off valves could result in fire hazard.
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Required Actions
Modify Whittaker fuel shut-off valves (12 per airplane) identified in Lockheed Service Bulletin 093-28-062 Revision 1 dated August 20, 1980. Special flight permits may be obtained to operate to a base for compliance. Alternative actions approved by the Chief, Los Angeles Area Aircraft Certification Office may be used.
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Compliance Time
Within 600 hours' time in service from the effective date of this AD
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Affected Aircraft
Lockheed-California Company Model L-1011 series airplanes certificated in all categories
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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