12th Flying Training Wing Aerospace Ground Equipment Maintenance
Jonathan Beres, 12th Flying Training Wing aerospace ground equipment mechanic, inspects the serviceability of a New Generation Heater duct during routine maintenance Aug. 28, 2018, at Joint Base San Antonio-Randolph, Texas. Beres is part of a team that inspects, tests and maintains ground equipment that supports aircraft maintenance and flying training operations. (U.S. Air Force photo by Sean M. Worrell)