AD 91-07-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | L-1011-385-1 | Airworthiness Directives; LOCKHEED Model L-1011 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-14 | Airworthiness Directives; LOCKHEED Model L-1011 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-15 | Airworthiness Directives; LOCKHEED Model L-1011 Series Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-3 | Airworthiness Directives; LOCKHEED Model L-1011 Series Airplanes |
Unsafe Condition
Structural failure of the aft pressure bulkhead due to cracks in the gore panels of the reinforcing doublers.
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Required Actions
Inspect the gore panels of the aft pressure bulkhead around the entire perimeter of the specified reinforcing doublers in accordance with Service Bulletin 093-53-263. If cracks are found, repair them prior to further flight using an approved method. Alternative compliance may be approved by the FAA Manager.
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Compliance Time
Within 30 days after the effective date of this AD, unless previously accomplished within the last 60 days. For airplanes previously inspected via Service Wire PSC/90-531176-OW, remaining inspections may be deferred up to 3,000 landings following the AD's effective date.
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Affected Aircraft
All Model L-1011 series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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