AD 81-08-01 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | L-1011-385-1 | LOCKHEED - CALIFORNIA Model L-1011-385 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-14 | LOCKHEED - CALIFORNIA Model L-1011-385 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-15 | LOCKHEED - CALIFORNIA Model L-1011-385 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-3 | LOCKHEED - CALIFORNIA Model L-1011-385 Series Airplanes |
Unsafe Condition
Possible loss of ground directional control resulting from unannunciated anti-skid systems failure or excessive pedal force due to parking brake circuit/supply valve failure.
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Required Actions
Perform prior to each flight either a brake system check or an inspection as specified. Within 1 year from effective date, modify parking brake and anti-skid electrical circuits per specified service bulletins. The pre-flight checks/inspections are no longer required after the modifications.
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Compliance Time
Ten days from the effective date for the pre-flight checks/inspections, and within 1 year from the effective date for the modifications.
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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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