AD 2010-03-05
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
Cracking of the upper chords and straps (or angles) of the floor beams, which could lead to failure of the floor beams and consequent loss of controllability, rapid decompression, and loss of structural integrity of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct a high frequency eddy current (HFEC) inspection for cracks of certain fastener holes, and take corrective action if necessary. Replace the upper chords, straps (or angles), and radius fillers of certain upper deck floor beams repetitively. For any replacement, perform detailed and open-hole HFEC inspections for cracks of the modified upper deck floor beams, and take corrective actions if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 1,500 flight cycles after the effective date of the AD or within 15,000 flight cycles after the upper chord replacement, whichever occurs later.
AI-generated summary from the source AD text. Verify against the official source before acting.
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 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.