Crack detection on HU-25 Guardian aircraft
Conference
·
OSTI ID:381755
- Sandia National Labs., Albuquerque, NM (United States)
- Coast Guard, Elizabeth City, NC (United States). Aircraft Repair and Supply Center
An ultrasonic inspection method was developed at FAA`s Airworthiness Assurance NDI Validation Center (AANC) to easily and rapidly detect hidden fatigue cracks in the copilot vertical windshield post on USCG (Coast Guard) HU-25 `Guardian` aircraft. The inspection procedure locates hidden cracks as small as 3.2 mm emanating from internal fastener holes and determines their length. A test procedure was developed and a baseline assessment of the USCG fleet conducted. Inspection results on 41 aircraft revealed good correlation with results made during subsequent structural disassembly and visual inspection of selected aircraft.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 381755
- Report Number(s):
- SAND--96-1930C; CONF-9610109--2; ON: DE96013389
- Country of Publication:
- United States
- Language:
- English
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