AD 2005-20-30
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-100 | Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-300, 747SP, and 747SR Series Airplanes |
Unsafe Condition
Fatigue testing of the fuselage structure of a Boeing Model 747SR series airplane has identified potential for cracks in various areas of the fuselage internal structure, which could result in loss of structural integrity and rapid depressurization of the airplane.
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Required Actions
Repetitive inspections of additional areas of the fuselage internal structure are required, along with related investigative/corrective actions if necessary. Repairs must be performed in accordance with Boeing Service Bulletin 747-53A2349, Revision 2, or FAA-approved methods.
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Compliance Time
Within 1,000 flight cycles after the effective date of this AD, or prior to the accumulation of 22,000 flight cycles, depending on the specific inspections required.
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Affected Aircraft
Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-300, 747SP, and 747SR series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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