250811-F-PU288-1160
U.S. Air Force Tech. Sgt. Jesse Grigg, right, and Tech. Sgt. Wiley Hernandez, 156th Expeditionary Airlift Squadron crew chiefs, change the nose tire of a C-17 Globemaster III within the U.S. Central Command area of responsibility, Aug. 11, 2025. Crew chiefs are responsible for inspecting and troubleshooting aircraft before specialized maintenance teams begin repairs. (U.S. Air Force photo by Senior Airman Amanda Jett)