AD 82-27-12
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
Loss of all DC standby functions in flight due to potential failure of the electrical system.
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Required Actions
Modify the electrical system in accordance with Part 2A of Lockheed-California Company L-1011 Service Bulletin 093-24-080, Revision 3, dated July 29, 1980, or later approved revisions. Alternate means of compliance approved by the FAA may be used.
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Compliance Time
by March 31, 1983
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Affected Aircraft
Lockheed 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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