AD 2012-12-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Fatigue cracking of the intercostals on the forward and aft sides of the forward entry door cutout, which could result in loss of the forward entry door and rapid decompression of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for cracking under the stop fittings and intercostal flanges at stringers S-14L, S-15L, and S-16L. Extend the repetitive interval for certain airplanes. Add a one-time inspection to detect missing fasteners. Add repetitive inspections for cracking of the cargo barrier net fitting and stringer S-15L aft intercostal, with repair if necessary. Update or add certain inspection and repair instructions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the applicable repetitive interval or before further flight, depending on the specific inspection requirement.
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Affected Aircraft
The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes, as specified in the AD.
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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