Staff Sgt. Christopher Bowen, 62nd Maintenance Squadron (MXS) hydraulics technician, supervises while Airman 1st Class Ian Cernetich, 62nd MXS hydraulics apprentice, works to remove a hydraulic pump from the engine of a C-17 Globemaster III at Joint Base Lewis-McChord, Wash., April 14, 2020. Both Airmen are wearing protective masks to help stop the spread of COVID-19 while they work. (U.S. Air Force photo by Senior Airman Tryphena Mayhugh)