U.S. Air Force Senior Airman Jacob Mendoza, 20th Operations Support Squadron aircrew flight equipment (AFE) journeyman, left, explains to 1st Lt. Michael Smith, 20th Operations Group executive officer, how to wear a parachute harness in preparation for his familiarization flight at Shaw Air Force Base, S.C., Sept. 25, 2017. Airmen assigned to AFE shops are responsible for fitting every aircrew member in their unit, as well as individuals selected for familiarization flights, with equipment to ensure its functionality. (U.S. Air Force photo by Airman 1st Class Destinee Sweeney)