260413-F-IH537-1027
U.S. Air Force Airman 1st Class Jacob Barnes, 100th Maintenance Squadron electrical and environmental systems journeyman, troubleshoots a power unit in the engine of a 100th Air Refueling Wing KC-135 Stratotanker at RAF Mildenhall, England, April 13, 2026. Barnes is responsible for maintaining the electrical, environmental, pressurization, oxygen, and fire suppression systems on the KC-135, ensuring the aircraft is mission ready. (U.S. Air Force photo by Senior Airman Aidan Martínez Rosiere)