Airman 1st Class Michael Griffin utilizes a stationary penetrant line Nov. 3, 2014, at Langley Air Force Base, Va. A penetrant is used to detect discontinuities, such as cracks and pits, open to the surface on parts made of nonporous materials. Griffin is a 1st Maintenance Squadron nondestructive inspection technician. ( Air Force photo/Staff Sgt. Antoinette Gibson)

---

Size: 1936px × 1291px
Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: air, airforce, airmen, f22, force, jble, langley, maintenance, military, ndi, raptor, states, united, usa