U.S. Air Force Airman 1st Class Leonard Howell, 62nd Maintenance Squadron electrical environmental apprentice, performs maintenance on the cooling system of a C-17 Globemaster III June 3, 2019, at Travis Air Force Base, California. Airmen from Joint Base Lewis-McChord, Washington, and Travis have completed 18 C-17 inspections since February. (U.S. Air Force photo by Tech. Sgt. James Hodgman)