AD 2001-11-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747 | Airworthiness Directives; Boeing Model 747 Series Airplanes |
Unsafe Condition
Fatigue cracking has been found in the outer chord, skin, splice fittings, and bulkhead web of the BS 1480 upper and lower bulkhead and longeron splice fitting, which could result in reduced structural integrity of the fuselage and the inability to carry limit load.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the outer chord, skin, splice fittings, and bulkhead web of the BS 1480 upper and lower bulkhead and longeron splice fitting for cracking. Repair any detected cracking as necessary. Modify the skin splice plate, outer chord splice fitting, and stringer interface of the lower bulkhead if necessary. Clarify and accomplish previously optional inspections according to the flight safety inspection program specified in the service bulletin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 1,000 flight cycles after the effective date of the AD, or within 10,000 flight cycles of the previous inspections accomplished in accordance with paragraph (g)(1) of this AD, whichever occurs latest.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 747 Series Airplanes, including additional airplanes added by this amendment.
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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