AD 2006-07-21
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 757 | Airworthiness Directives; Boeing Model 757 Airplanes Powered by Pratt & Whitney Engines |
Unsafe Condition
Corrosion and cracking of the midspar fittings in the nacelle struts, leading to reduced structural integrity and possible separation of an engine and strut from the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for corrosion and cracking of the midspar fittings in the nacelle struts. Replace any cracked or corroded midspar fitting. Perform high-frequency eddy current (HFEC) and borescope inspections if corrosion or cracking is found. Revise the Airplane Flight Manual (AFM) as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 18 months of effective date for replacement of fittings with signs of corrosion or cracking.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 757 airplanes powered by Pratt & Whitney engines, as specified in the AD.
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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