AD 2017-10-21
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
The fuselage skin is subject to widespread fatigue damage (WFD), which could lead to cracks at the lap joint skin that could link up and result in rapid decompression and loss of structural integrity of the airplane.
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Required Actions
Modify the lap joint and perform repetitive inspections for cracking of the skin at critical fastener rows. Take corrective actions if necessary.
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Compliance Time
Within 12 months of the effective date (June 29, 2017).
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Affected Aircraft
The Boeing Company Model 737-300, -400, and -500 series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 737-53A1343, dated March 25, 2016; except for Group 5 airplanes identified in the same bulletin.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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