AD 76-21-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | L-1011-385-1 | LOCKHEED-CALIFORNIA COMPANY Model L-1011-385 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-14 | LOCKHEED-CALIFORNIA COMPANY Model L-1011-385 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-15 | LOCKHEED-CALIFORNIA COMPANY Model L-1011-385 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-3 | LOCKHEED-CALIFORNIA COMPANY Model L-1011-385 Series Airplanes |
Unsafe Condition
Incorrect installation of latch pins on the latch fittings of the C-1A cargo door surround structure could result in a possible in-flight loss of the C-1A cargo door.
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Required Actions
Install latch pin guard assemblies and related components, reidentify the latch fitting assemblies, and check proximity sensors adjustment as necessary on the C-1A cargo door surround structure following Service Bulletin 093-52-083 or equivalent.
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Compliance Time
within the next 300 hours' time in service after the effective date of this AD
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Affected Aircraft
Lockheed-California Company Model L-1011-385 series airplanes with C-1A cargo door installed
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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