U.S. Air Force Senior Airman Kostiantyn Khymchenko, 633d Civil Engineer Squadron heating, ventilation, air conditioning journeyman, inspects an HVAC system at Joint Base Langley-Eustis, Virginia, July 25, 2023. Khymchenko was selected as one of the 12 Outstanding Airmen of the Year, in which he was recognized for his exceptional service and notable performance as an Airman and leader. (U.S. Air Force photo by Airman 1st Class Mikaela Smith)