U.S. Air Force Senior Airmen Andrew Piercy and Cody Bowman, both 354th Maintenance Squadron aerospace propulsion journeymen, disassemble an F110-GE-100C engine compressor Oct. 8, 2015, in the Engine Shop at Eielson Air Force Base, Alaska. Piercy and Bowman were involved in an aircraft engine rebuild, a detail-demanding process that can take several months to complete. (U.S. Air Force photo by Senior Airman Peter Reft/Released)