Air Force Tech. Sgt. Joel Sluis, a nondestructive inspection craftsman with the 182nd Maintenance Squadron, Illinois Air National Guard, conducts a fluorescent penetrant inspection on C-130H Hercules wheel lock rings at the 182nd Airlift Wing in Peoria, Ill., Oct. 26, 2017. NDI Airmen specialize in using noninvasive methods to identify structural integrity defects in equipment. ( Air National Guard photo by Tech. Sgt. Lealan Buehrer)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: 182nd, 2a7x2, air, airlift, ang, fluorescent, guard, illinois, inspection, national, ndi, nondestructive, penetrant, wing