AD 76-09-03
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
Stress corrosion failures of the hooks or related components of the C-1, C-2, or C-3 cargo doors could cause possible sudden in-flight depressurization.
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Required Actions
Inspect upper and lower hooks, clevis fittings, eccentric pins, bushings, pressure stops, and door surround structure for failures or cracks per Service Bulletin 093-52-086. Replace cracked or failed parts with serviceable parts. Perform a one-time rigging check of the cargo doors per the same service bulletin. Replace specific hooks and pins per Service Bulletin 093-52-087 within 5600 hours' time in service after the effective date.
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Compliance Time
Within the next 850 hours' time in service after the effective date of this AD, and thereafter at intervals not to exceed 850 hours' time in service until modifications of paragraph (d) are accomplished. For paragraph (d), within the next 5600 hours' time in service after the effective date.
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Affected Aircraft
Lockheed-California Company Model L-1011-385 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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