Air Force Airmen 1st Class Allan Calangan and Chandler Brown, 755th Aircraft Maintenance Squadron aerospace propulsion apprentices, work on a progress check exam during a course at the 372nd Training Squadron, Detachment 11 at Davis-Monthan Air Force Base, Ariz., Oct. 3, 2016. The students and teacher complete the progress check exams to ensure material comprehension. ( Air Force photo by Senior Airman Betty R. Chevalier)

---

Size: 6016px × 4016px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, -130, -10, .., 11, 2m, 372, afb, air, aircraft, airmen, arizona, davis-monthan, det, force, hh-60, maintenance, mission-ready, navy, program, sheppard, training, trs, usaf, usn