AD 2005-20-30

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-300, 747SP, and 747SR Series Airplanes

AD Number
2005-20-30
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2005-20880
FR Citation
70 FR 59252

Applicability

TypeManufacturerModelDetails
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.

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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