AD 2007-15-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-100 | Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-200B, 747-200C, 747-200F, 747-300, 747SR, and 747SP Series Airplanes |
Unsafe Condition
Fatigue cracks in the fuselage skin near stringer 5 between stations 340 and 350 could join together and result in in-flight depressurization of the airplane.
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Required Actions
Conduct repetitive high frequency eddy current inspections for cracks of the fuselage skin at stringer 5 left and right between stations 340 and 350. Perform applicable corrective actions in accordance with Boeing Alert Service Bulletin 747-53A2542, which may include installing a repair per Boeing 747-100/200/300 Structural Repair Manual (SRM) 53-30-03, followed by eventual replacement with the permanent repair described in Boeing Service Bulletin 747-53-2272, Revision 18 or earlier.
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Compliance Time
Within 250 flight cycles after the effective date of this AD.
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Affected Aircraft
Boeing Model 747-100, 747-100B, 747-200B, 747-200C, 747-200F, 747-300, 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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