AD 2009-24-08

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 777-200, -200LR, -300, and -300ER Series Airplanes

AD Number
2009-24-08
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2009-0571
FR Citation
74 FR 62217

Applicability

TypeManufacturerModelDetails
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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