AD 89-18-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | L-1011-385-1 | LOCKHEED AERONAUTICAL SYSTEMS COMPANY 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 | LOCKHEED AERONAUTICAL SYSTEMS COMPANY 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 | LOCKHEED AERONAUTICAL SYSTEMS COMPANY 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 | LOCKHEED AERONAUTICAL SYSTEMS COMPANY Models L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, and L-1011-385-3 Series Airplanes |
Unsafe Condition
A fire from arcing due to loose APU starter ground cables falling off the ground studs and onto the APU fuel shutoff valves.
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Required Actions
Within 6 months after the effective date, inspect the APU starter ground stud/bracket for proper installation and torque as per Service Bulletin 093-49-062. Discrepancies must be corrected prior to further flight.
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Compliance Time
Within 6 months after the effective date of this airworthiness directive (AD)
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Affected Aircraft
Lockheed Model L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, and L-1011-385-3 series airplanes as listed in Service Bulletin 093-49-062.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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