AD 2008-09-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-200F | Airworthiness Directives; Boeing Model 747-200F, 747-300, 747-400, and 747-400D Series Airplanes |
Unsafe Condition
Missing fasteners from the shear clip at the stub frame to auxiliary sill joint can lead to cracking of the adjacent exterior skin and internal doubler, which may propagate and result in loss of structural integrity and sudden in-flight decompression.
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Required Actions
Inspect the shear clip at the stub frame to auxiliary sill joint for missing fasteners. Take applicable investigative and corrective actions as necessary to ensure fasteners are installed.
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Compliance Time
Before further flight
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Affected Aircraft
Boeing Model 747-200F, 747-300, 747-400, and 747-400D series airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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