AD 2023-10-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | B-17E | Airworthiness Directives; Boeing Airplanes |
Unsafe Condition
Fatigue cracking of the wing terminal-to-spar chord joints could result in loss of control of the aircraft and reduced structural integrity of the airplane.
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Required Actions
Inspections of the wing terminal-to-spar chord joints to detect cracking and corrosion, using one of two options: a magnetic particle inspection of the terminal fittings and an eddy current inspection of the spar chord, or an eddy current bolt hole inspection on the steel terminal fittings and the aluminum spar chord. Repairing cracking and corrosion and sending all inspection results (both positive and negative) to the FAA.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
Boeing Model B-17E, B-17F, and B-17G airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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