Crack detection on HC-130H aircraft using low frequency eddy current

Conference · Sun Feb 01 00:00:00 EST 1998

OSTI ID:634112

Moore, D G ^[1]; Mihelic, J E; Barnes, J D ^[2]

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1. Sandia National Labs., Albuquerque, NM (United States)
2. Coast Guard, Elizabeth City, NC (United States). Aircraft Repair and Supply Center

An eddy current inspection method was developed at the Federal Aviation Administration`s Airworthiness Assurance NDI Validation Center (AANC) to easily and rapidly detect subsurface fatigue cracks in the wheel well fairing on the US Coast Guard (USCG) HC-130H aircraft caused by fatigue. The inspection procedure locates cracks as small as 10.2 millimeters in length at 2.54 mm below the skin surface at raised fastener sites. The test procedure developed baseline three USCG aircraft. Inspection results on the three aircraft reveals good correlation with results made during subsequent structural disassembly.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE Office of Financial Management and Controller, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 634112
• Report Number(s): SAND-98-0449C; CONF-980340-; ON: DE98004131; TRN: AHC2DT01%%123
• Resource Relation: Conference: Annual American Society for Nondestructive Testing (ASNT) conference, Anaheim, CA (United States), 23 Mar 1998; Other Information: PBD: Feb 1998
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
EDDY CURRENT TESTING
AIRCRAFT
CRACKS
FATIGUE
WHEELS