Airman 1st Class Zane Miller, 11th Civil Engineer Squadron heating and air conditioning apprentice, left, assists Senior Airman Phillip Brisco, 11 CES HVAC journeyman, as he uses an acetylene torch to braze a copper line to attach a new air handler line to an outdoor condenser at the U.S. Army Priority Transport Airlift Nov. 22. (U.S. Air Force photo/Bobby Jones)