B-17 Wing Inspection AD Issued

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Key Takeaways:

  • The FAA has issued an Airworthiness Directive (AD) requiring a complex, approximately 25-hour eddy current inspection of wing attachment assemblies and bolt holes on all airworthy aircraft.
  • This AD was prompted by a pilot's discovery of a significant issue on a B-17, where the left wing had a two-inch gap from the fuselage due to the complete separation of the left front spar lower fitting.
  • The AD also noted that the equivalent joint on the right side of the B-17 was found to be cracked, with the directive requiring inspections and necessary repairs.
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As expected, the FAA has issued an AD that likely requires a complex inspection of the wing attachment assemblies on all the airworthy aircraft. The FAA says an eddy current inspection of bolt holes in the wing structure is likely the most efficient method and will take about 25 hours. If issues are found repairs will have to be done and that might be expensive.

The FAA was notified when a pilot on a walkaround noticed that the left wing on a B-17 he was getting ready to fly had a two-inch gap between it and the fuselage. “This AD was prompted by a report indicating that the left front spar lower fitting had completely separated at the wing-to-fuselage joint, and the equivalent joint on the right side of the airplane was cracked,” the AD says. “This AD requires inspections of the wing terminal-to-spar chord joints, and repair if necessary.”

Russ Niles

Russ Niles is Editor-in-Chief of AVweb. He has been a pilot for 30 years and joined AVweb 22 years ago. He and his wife Marni live in southern British Columbia where they also operate a small winery.
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