Senior Airman Christopher Lynch, 633rd Medical Support Squadron biomedical equipment technician, sets up test equipment to calibrate an x-ray machine at Langley Air Force Base, Va., Jan. 13, 2016. BMETs are responsible for ensuring an estimated 5,300 pieces of medical equipment are in working condition to help serve patients' medical needs. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)