AD 2005-25-26

Recurring final rule
Data completeness: 80%

Airworthiness Directives; Boeing Model 747-400, 747-400D, and 747-400F Series Airplanes

AD Number
2005-25-26
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2005-22437
FR Citation
70 FR 74639

Applicability

TypeManufacturerModelDetails
aircraft Boeing 747-400 Airworthiness Directives; Boeing Model 747-400, 747-400D, and 747-400F Series Airplanes

Unsafe Condition

Reports of skin corrosion on four Boeing Model 747 series airplanes delivered between 1995 and 1999. Corrosion can penetrate the thickness of the skin, cause cracking, and result in rapid decompression of the airplane.

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Required Actions

Within 12 months after the effective date, perform a detailed inspection for damage (degraded finish, missing, lifted, peeling, or blistering paint, or signs of corrosion) of the interior skin in the forward and aft cargo compartments. Perform applicable corrective actions before further flight. Repeat the inspection at intervals not to exceed 48 months until specific tasks are accomplished.

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Compliance Time

Within 12 months after the effective date

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Affected Aircraft

Boeing Model 747-400, 747-400D, and 747-400F series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 747-53A2505, dated March 17, 2005.

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Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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