Senior Airman Kyle McClung, 455th Expeditionary Aircraft Maintenance Squadron crew chief, performs an engine inspection on an EC-130 Compass Call Jan. 18, 2017 at Bagram Airfield, Afghanistan. The unit’s mission capable rate, the maintenance term for number of functioning aircraft, has been at a record-breaking high over the last 27 months. (U.S. Air Force photo by Staff Sgt. Katherine Spessa)