Senior Airman Devin Truesdell, 374th Maintenance Squadron propulsion flight aerospace propulsion journeyman, examines a quick engine change kit at Yokota Air Base, Japan, Sept. 23, 2015. The propulsion flight Airmen fix C-130 Hercules engines for both Yokota and Kadena Air Base. (U.S. Air Force photo by Senior Airman David Owsianka)