AD 79-08-04 R2
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
Failure of the main landing gear truck pivot pins, part numbers 1523058-101 or -103, due to cracks on the open end inside surface.
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Required Actions
Within 50 hours time in service after the effective date, perform a visual inspection of the pivot pins' open end inside surfaces per Lockheed wire PSC/78-46863-OL. If cracks are found, inspect before further flight or replace. Within 300 hours, perform ultrasonic inspections per Service Bulletin 093-32-149, Revision 2, with follow-up intervals based on inspection results. Install fail-safe retainers within 1500 or 2500 hours time in service as specified. Install main landing gear uplock snubber kits within 12 calendar months per Service Bulletin 093-32-154.
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Compliance Time
Within the specified intervals: 50 hours time in service for initial visual inspection, 300 hours for ultrasonic inspection, 1500 or 2500 hours for fail-safe retainers, and 12 calendar months for uplock snubber installation.
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Affected Aircraft
Lockheed-California Company L-1011-385 series airplanes, including models L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, L-1011-385-3, 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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