AD 2013-09-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Fatigue cracking in the radius of the lower frames and in the lower number 5 cross beam of the forward cargo door, which could result in rapid depressurization of the airplane.
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Required Actions
Revise compliance times for preventive modification; add inspections for cracks in the number 5 cross beam; add inspections of the number 4 cross beam if cracks are found in the number 5 cross beam, with corrective actions if necessary; add a one-time inspection for airplanes previously modified or repaired; add a one-time inspection of the reinforcement angle for excessive shimming or fastener pull-up, with corrective actions if necessary.
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Compliance Time
Within specified compliance times as revised by this AD.
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Affected Aircraft
The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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