AD 2001-15-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747 | Airworthiness Directives; Boeing Model 747 Series Airplanes Powered By Pratt & Whitney JT9D-7 Series Engines |
| engine | Pratt & Whitney | JT9D-7 Series | Airworthiness Directives; Boeing Model 747 Series Airplanes Powered By Pratt & Whitney JT9D-7 Series Engines |
Unsafe Condition
Bushing migration, corrosion, or cracking of the lugs on the bulkhead fitting of the rear engine mount could result in fracture of the lugs 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
Accomplish ultrasonic inspections of the lugs on the bulkhead fitting of the rear engine mount. For certain airplanes, rework the bulkhead fitting of the rear engine mount as specified in the referenced service bulletin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 9 months of the effective date.
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Affected Aircraft
Boeing Model 747 series airplanes powered by Pratt & Whitney JT9D-7 series engines.
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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