AD 2007-23-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-100B SUD | Airworthiness Directives; Boeing Model 747-100B SUD, 747-200B, 747-300, 747-400, and 747-400D Series Airplanes |
Unsafe Condition
Cracking or discrepancies of the fasteners in the tension ties, shear webs, and frames at body stations 1120 through 1220, which could result in rapid decompression and reduced structural integrity of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for cracking or discrepancies of the fasteners in the tension ties, shear webs, and frames at body stations 1120 through 1220, with reduced repetitive intervals for Stage 1 inspections. Perform related investigative and corrective actions if necessary. Send inspection results to Boeing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the reduced repetitive interval for Stage 1 inspections, as specified in the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 747-100B SUD, 747-200B, 747-300, 747-400, and 747-400D series airplanes; and Model 747-200B series airplanes having a stretched upper deck.
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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