AD 2006-12-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-100 | Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-300, 747-400, 747-400D, and 747SR Series Airplanes |
Unsafe Condition
Fatigue cracks in the station 800 frame assembly that could extend and fully sever the frame, leading to skin cracks and potential rapid depressurization of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the station 800 frame assembly for cracking, expanding the inspection area compared to the existing AD. Repair any cracks found. Retain repetitive inspection requirements but adjust compliance thresholds and intervals based on flight cycles, not cabin differential pressure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the specified flight cycle thresholds as outlined in the AD, with no grace period based on calendar time.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-300, 747-400, 747-400D, and 747SR 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
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