Air Force Airman 1st Class Jerod Rice, 20th Equipment Maintenance Squadron nondestructive inspection apprentice, uses a blacklight to search for flaws in the structural integrity of a halo at Shaw Air Force Base, , Feb. 13, 2018. Halos function as engine stands, propping up aircraft engines to be maintained and tested.

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Photo credit: © RP Library / Alamy / Afripics
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Keywords: #airmen, #ems, #maintenan, #ndi, #nondestructive, #science, air, america, armed, army, defence, employee, federal, force, forces, government, inspection, military, navy, service, serviceman, servicemen, states, united, usa