AD 2012-10-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Cracking of the fuselage skin lap splice between body station (BS) 400 and BS 520 at stringers S-6L and S-6R, which could result in sudden loss of cabin pressurization and the inability of the fuselage to withstand fail-safe loads.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Shorten the interval for repetitive inspections for cracks of the fuselage skin lap splice. Modify certain airplanes as specified. Require post-modification inspections for other airplanes as necessary.
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Compliance Time
Within 5,000 flight cycles after certain modifications have been done.
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Affected Aircraft
The Boeing Company Model 747 series airplanes, as specified in the referenced AD and service bulletins.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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