AD 81-01-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | L-1011-385-1 | LOCKHEED-CALIFORNIA: Model 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-CALIFORNIA: Model 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-CALIFORNIA: Model 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-CALIFORNIA: Model L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, and L-1011-385-3 Series Airplanes |
Unsafe Condition
Crack development in outboard aileron support fittings could result in flutter.
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Required Actions
Inspect Hi-Tigues at OWS440 and 476 for cracks using Service Bulletin 093-57-143. Repair or replace cracked parts before further flight. Replace 3/16-inch Hi-Tigues with 1/4-inch diameter ones before further flight for extended span wings, or within 3,000 hours for standard span wings. Repeat inspections at specified intervals until fitting PN 1529413 is replaced with PN 1633849.
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Compliance Time
Within 300 hours' time in service after the effective date for extended span wings; within 800 hours' time in service after the effective date for standard span wings.
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Affected Aircraft
Lockheed-California Model L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, and L-1011-385-3 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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