U.S. Air Force Airman 1st Class Lillie Schindlebeck, an 18th Aggressor Squadron aircrew flight equipment (AFE) journeyman, inspects a helmet Dec. 19, 2018, at Eielson Air Force Base, Alaska. As well as testing gear used on a regular basis, AFE Airmen also inspect and test emergency gear to make sure it functions properly in the event of an emergency. (U.S. Air Force photo by Senior Airman Isaac Johnson)