AD 2001-02-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 737-300 | Airworthiness Directives; Boeing Model 737-300, -400, and -500 Series Airplanes |
Unsafe Condition
Fatigue cracking of certain areas of the forward pressure bulkhead, which could result in rapid decompression of the airplane fuselage.
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Required Actions
Perform initial and repetitive inspections of the vertical and side chord areas of the forward pressure bulkhead to detect cracking. Repair any detected cracking before further flight. Accomplish preventive modifications of the vertical and side chord areas to terminate repetitive inspections.
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Compliance Time
Within 3,000 flight cycles after the effective date or before the accumulation of 20,000 total flight cycles, whichever occurs later.
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Affected Aircraft
Boeing Model 737-300, -400, and -500 series airplanes, certificated in any category, as listed in Boeing Alert Service Bulletin 737-53A1208, dated May 6, 1999.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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