AD 79-19-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | L-1011-385-1 | LOCKHEED-CALIFORNIA COMPANY Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-14 | LOCKHEED-CALIFORNIA COMPANY Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-15 | LOCKHEED-CALIFORNIA COMPANY Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 Airplanes |
Unsafe Condition
Failure of the pressure relief door to maintain fail-safe operational capability due to inadequate antifriction gasket on the flange.
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Required Actions
Install the antifriction gasket on the flange of the pressure relief door per FAA-approved Service Bulletin 093-52-133 within the next 300 hours time in service. Alternate modifications may be used if approved by the Chief, Aircraft Engineering Division, FAA Western Region.
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Compliance Time
Within the next 300 hours time in service
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Affected Aircraft
Lockheed-California Company Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 airplanes configured with a C-1A cargo door.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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