AD 2010-07-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company Model 747-200C and -200F | Airworthiness Directives; The Boeing Company Model 747-200C and -200F Series Airplanes |
Unsafe Condition
Fatigue cracking in the floor panel attachment fastener holes and permanent fastener holes of the upper chord of certain upper deck floor beams in Sections 41 and 42, which could extend and sever the floor beams, leading to rapid decompression and loss of controllability.
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Required Actions
Inspect the floor panel attachment fastener holes of the upper chord of certain upper deck floor beams in Sections 41 and 42, and the permanent fastener holes of the upper chord of certain upper deck floor beams in Section 41. Repair if necessary. Perform related investigative and corrective actions.
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Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
The Boeing Company Model 747-200C and -200F 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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