AD Amdt-39-10976
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747 | Airworthiness Directives; Boeing Model 747 Series Airplanes |
Unsafe Condition
Fatigue or stress corrosion cracking in new areas of the diagonal brace, which could result in failure of the strut and consequent separation of the engine from the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Repetitively inspect the root radius of the clevis of the diagonal brace of the engine strut. For certain airplanes, add new repetitive inspections of the diagonal brace lugs and reduce intervals for previously required inspections. Inspections must be conducted in accordance with the specified service bulletin or alert service bulletin.
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Compliance Time
Within the intervals specified in the referenced service bulletin or alert service bulletin.
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Affected Aircraft
Boeing Model 747 series airplanes, as specified in the referenced service bulletin or alert service bulletin.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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