AD 2024-01-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Fatigue cracking of fuselage skin repairs at the double row of fasteners centered on certain stringers, specifically Stringer S-17, may go undetected due to inadequate inspection requirements following repair accomplishment.
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Required Actions
Conduct repetitive inspections for cracks of skin repairs at Stringer S-17, stations STA 360 to STA 380, and STA 888 to STA 907, on both the left and right sides of the airplane. Use low frequency eddy current (LFEC) and medium frequency eddy current (MFEC) inspections as specified. Take corrective actions, including repair, if cracks are detected.
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Compliance Time
Within 50,000 total flight cycles, with a grace period of 4,000 flight cycles after the repair.
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Affected Aircraft
The Boeing Company Model 737-600, 737-700, and 737-800 series airplanes that have undergone fuselage skin repairs at the double row of fasteners centered on certain stringers, specifically Stringer S-17.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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