AD Amdt-39-11677

final rule
Data completeness: 70%

Airworthiness Directives; Lockheed Model L-1011-385 Series Airplanes

AD Number
Amdt-39-11677
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 99-NM-252-AD
FR Citation
65 FR 20347

Applicability

TypeManufacturerModelDetails
aircraft Lockheed L-1011-385 Airworthiness Directives; Lockheed Model L-1011-385 Series Airplanes

Unsafe Condition

Fatigue cracking in the web of the rear spar of the wing, which could result in failure of the rear spar of the wing and consequent fuel spillage.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Perform a visual inspection to detect signs of cracking and other discrepancies of the web-to-cap fasteners of the rear spar between inner wing station (IWS) 310 and IWS 343, and of the web area around those fasteners. Repeat inspections at intervals not to exceed the specified number of landings. If cracking is found, take corrective actions as specified.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Required as indicated, unless accomplished previously.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

All Lockheed Model L-1011-385 series airplanes, certificated in any category.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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