AD 82-03-04 R1
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
Leakage of flammable fluids in areas where fluids or vapors could reach the auxiliary power unit exhaust shroud, which could lead to fire hazards.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 400 hours time in service from the AD's effective date, perform leak tests and visual inspections per Lockheed Service Bulletin 093-49-058. Repairs or replacements of defective parts must be done before further flight if leakage is detected. Install APU Exhaust Duct and Shroud Insulation within 5000 flight hours or 2 calendar years after the effective date, whichever comes first, to reduce shroud skin temperature. Repetitive inspections under paragraph A are terminated upon completing the insulation installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 400 hours time in service from the effective date of this AD, and at repetitive intervals not to exceed 400 hours time in service thereafter for inspections. Install insulation within 5000 flight hours or two (2) calendar years after the effective date, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Lockheed-California Company Model L-1011-385 series airplanes prior to Serial No. 1239, certificated in all categories.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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