AD 2005-10-21
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747 | Airworthiness Directives; Boeing Model 747 Airplanes |
Unsafe Condition
Fatigue cracks in the body station (BS) 1000 bulkhead chord, which, if not repaired before they reach critical length, could result in the failure of the adjacent structure and skin and lead to in-flight depressurization of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct repetitive high frequency eddy current (HFEC) inspections of the BS 1000 bulkhead chord for cracks. Conduct repetitive detailed inspections of the bathtub fittings, if installed, for cracks. Take corrective action if necessary, including replacing bathtub fittings as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 12 months of effective date (June 23, 2005).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 747 airplanes, including additional airplanes as specified in the AD, with specific focus on the BS 1000 bulkhead chord and bathtub fittings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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