Senior Airman Kerry Bowden (left), Senior Airman Terri Morris, and Airman 1st Class Stefon Douglas, 28th Aircraft Maintenance Squadron aerospace propulsion technicians, arrange tools used to inspect a B-1 bomber’s propulsion system at Ellsworth Air Force Base, S.D., March 28, 2013. Aerospace propulsion technicians are responsible for maintaining and diagnosing engine issues including fuel, oil, electrical and airflow malfunctions. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)