AD 85-22-51
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
Fires may be ignited by damaged electrical wires in the APU cables and No. 2 engine generator feeder cables located on the left side between the second frame forward of pressure bulkhead and the pressure bulkhead at approximately WL 179.
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Required Actions
Within ten days after the effective date, inspect the cables for minimum clearance of one-half inch from the bleed air duct insulated cover and proper clamping/insulation condition. If clearance is insufficient or insulation/wire damage is found, adjust or repair before further flight per Lockheed Service Bulletin 093-24-A127 or FAA-approved procedures.
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Compliance Time
Within ten (10) days after the effective date of this AD
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Affected Aircraft
Lockheed Model L-1011-385 series airplanes certificated in any category, including models L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, and L-1011-385-3.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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