AD 2022-18-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
certain web lap splices in the center dome apex of the aft pressure bulkhead are subject to widespread fatigue damage (WFD) due to clamp-up stresses and pressurization, which can reduce the fatigue life of the web and potentially cause early cracking in this location.
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Required Actions
a general visual inspection for existing repairs at the aft pressure bulkhead; repetitive detailed, high frequency eddy current (HFEC), and low frequency eddy current (LFEC) inspections; and repair if necessary.
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Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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