AD 2015-15-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Skin cracks and subsequent findings of hidden corrosion on the mating surfaces between certain skin and stringers at circumferential skin splices, due to compromised fillet seals, which can result in skin cracking and loss of capability to support limit loads.
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Required Actions
General visual inspections of the fuselage skin at certain lower circumferential splices for the presence of existing external doublers, repetitive inspections of the fuselage skin, and related investigative and corrective actions if necessary.
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Compliance Time
Within 12 months of the effective date (September 1, 2015).
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Affected Aircraft
The Boeing Company Model 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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