Senior Airman Matthew Gadziala, 924th Fighter Group Electrical and Environmental specialist, replaces the inlet and outlet ducts on a pre-cooler prior to re-installing it on a A-10 Thunderbolt II at Davis-Monthan Air Force Base, Ariz,. Gadziala joined the Air Force for a change of pace however he is still going to school to be a doctor, his ultimate goal. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson)