AD Amdt-39-10504
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed | L-1011 | Airworthiness Directives; Lockheed Model L-1011 Series Airplanes Equipped With Rolls Royce Model RB211-22B Engines |
Unsafe Condition
Bearing failure could lead to a fire in the gearbox.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Accomplish various modifications and corrective actions to detect and correct bearing failure. These include inspecting gearbox components, replacing defective bearings, and implementing fire prevention measures as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Lockheed Model L-1011 series airplanes equipped with Rolls Royce Model RB211-22B engines that have installed thickened gearbox housings as part of a prior AD's terminating action.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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