AD 93-24-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | L-1011-385-1 | Airworthiness Directives; LOCKHEED Models L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, and L-1011-385-3 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-14 | Airworthiness Directives; LOCKHEED Models L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, and L-1011-385-3 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-15 | Airworthiness Directives; LOCKHEED Models L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, and L-1011-385-3 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-3 | Airworthiness Directives; LOCKHEED Models L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, and L-1011-385-3 Series Airplanes |
Unsafe Condition
Failure of the cargo door latching mechanism could lead to the cargo door opening during flight and resulting in rapid decompression of the airplane.
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Required Actions
Inspect shims under the hinges of the C-1A cargo door for excessive thickness and replace cracked or corroded latch fittings and serrated plates. Install structural doublers and new shims if thickness exceeds limits. Apply cadmium plating to undamaged serrated plates. Replace or reprocess improperly heat-treated serrated plates.
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Compliance Time
Prior to the accumulation of 8,000 total landings or within 1,800 landings after the effective date of this AD, whichever occurs later.
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Affected Aircraft
Lockheed Models L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, and L-1011-385-3 series airplanes listed in Lockheed Service Bulletins 093-52-155 and 093-53-252.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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