AD 2006-26-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 737-200 | Airworthiness Directives; Boeing Model 737-200, -300, -400, and -500 Series Airplanes |
Unsafe Condition
Frame cracks have been found at the attachment holes for support brackets for the air conditioning outlet extrusion. Continued growth of such cracks could result in a severed frame, which, combined with existing multi-site damage at the stringer 10 lap splice, could lead to rapid decompression of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect frames between station 360 and station 907 to determine if the subject support bracket is installed. Perform related repetitive investigative actions and repair if necessary. Optionally, perform a preventive modification to end repetitive investigative actions. Conduct a one-time post-modification/repair inspection for cracking of each repaired/modified frame.
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Compliance Time
Before further flight
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Affected Aircraft
Boeing Model 737-200, -300, -400, and -500 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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