AD 2005-25-26
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| 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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