AD 2007-21-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 727 | Airworthiness Directives; Boeing Model 727 Airplanes |
Unsafe Condition
Reports of cracking in the aft pressure bulkhead web, which could result in rapid decompression of the airplane.
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Required Actions
Perform an initial detailed inspection for cracks in the aft pressure bulkhead web. Repair any cracks found before further flight. Conduct repetitive detailed inspections at specified intervals. Perform related investigative actions if necessary.
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Compliance Time
Within the compliance times specified in Boeing Special Attention Service Bulletin 727-53-0230, dated January 8, 2007, or within the specified compliance time after the effective date of this AD.
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Affected Aircraft
All Boeing Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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