AD 2013-13-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
The fuselage skin just above certain lap splice locations is subject to widespread fatigue damage, which could result in reduced structural integrity of the airplane and sudden loss of cabin pressure.
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Required Actions
Perform external sliding probe eddy current inspections of the fuselage skin for cracking, in accordance with Boeing Alert Service Bulletin 747-53A2854, or an approved method. If cracking is found, repair it using an approved method before further flight. Repeat inspections at specified intervals if no cracking is found.
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Compliance Time
Within the compliance times specified in Boeing Alert Service Bulletin 747-53A2854, adjusted to be after the effective date of this AD.
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Affected Aircraft
The Boeing Company Model 747SP series airplanes, Model 747-100B SUD airplanes (line numbers 636 and 655), and Model 747-300 airplanes (line numbers 692 through 695 inclusive).
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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