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Staff Sgt. Marcus Tello, 41st and 37th Flying Training Squadron Aircrew Flight Equipment technician, checks the airflow of a helmet’s tube Dec. 5, 2017, on Columbus Air Force Base, Mississippi. If any equipment needs repaired, the AFE unit will test, evaluate and replace or fix the issue so pilots are ready to encounter any situation during their flights. (U.S. Air Force photo by Airman 1st Class Keith Holcomb)
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