AD 94-05-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | L-1011-385-1 | Lockheed Aeronautical Systems Company Model L-1011-385 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-14 | Lockheed Aeronautical Systems Company Model L-1011-385 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-15 | Lockheed Aeronautical Systems Company Model L-1011-385 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-3 | Lockheed Aeronautical Systems Company Model L-1011-385 Series Airplanes |
Unsafe Condition
Fatigue cracking and corrosion in transport category airplanes that are approaching or have exceeded their economic design goal.
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Required Actions
Inspect for cracks and corrosion, accomplish structural modifications in accordance with specified service bulletins, and comply with thresholds or time limits as per the referenced service bulletins. Modifications must be done prior to reaching modification thresholds or within 5 years or 5,000 flight cycles after specified dates.
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Compliance Time
Within the later of the thresholds for modifications specified in the service bulletins or within 5 years or 5,000 flight cycles after March 22, 1991 or the effective date of this AD, whichever occurs first.
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Affected Aircraft
Lockheed Aeronautical Systems Company Model L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, L-1011-385-3 series airplanes with specific serial number ranges as listed in the referenced service bulletins.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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