AD Amdt-39-10982

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747 Series Airplanes

AD Number
Amdt-39-10982
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 97-NM-308-AD
FR Citation
64 FR 985

Applicability

TypeManufacturerModelDetails
aircraft Boeing 747 Airworthiness Directives; Boeing Model 747 Series Airplanes

Unsafe Condition

Fatigue cracking in the lower spar fitting lug on the number 3 pylon and in the lower spar fitting body, which could result in failure of the strut and separation of the engine from the airplane.

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

Required Actions

Inspect for cracks, corrosion, or damage of the lower spar fitting body and lug. Perform corrective actions if necessary. Optional replacement is available, which terminates repetitive inspections.

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

Affected Aircraft

Boeing Model 747 series airplanes, as specified in the referenced AD and service bulletins.

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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