AD 2009-24-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 777-200 | Airworthiness Directives; Boeing Model 777-200, -200LR, -300, and -300ER Series Airplanes |
Unsafe Condition
Reports of scribe lines found at lap joints and butt joints, around external doublers, and at locations where external decals had been cut. These scribe lines can develop into fatigue cracks in the skin, which can grow and cause sudden decompression of the airplane.
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Required Actions
Inspect for scribe lines in the skin along lap joints, butt joints, certain external doublers, and the large cargo door hinges. Perform related investigative and corrective actions as specified in Boeing Alert Service Bulletin 777-53A0054, dated August 7, 2008, or using an approved method.
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Compliance Time
Within the specified compliance times in Boeing Alert Service Bulletin 777-53A0054, dated August 7, 2008, or within the specified compliance time after the effective date of this AD.
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Affected Aircraft
Boeing Model 777-200, -200LR, -300, and -300ER series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 777-53A0054, dated August 7, 2008.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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