Maintenance Airmen hone skills in crash simulation Published Feb. 23, 2017 By Senior Airman Luke Hill 2nd Bomb WIng Public Affairs BARKSDALE AIR FORCE BASE, La. -- Air pressure valves are used to control and monitor the pressure in air lifts under a B-52 Stratofortress at Barksdale Air Force Base, La., Feb. 16, 2017. Three Airmen monitoring each of system had to communicate via radio to ensure the lifts remained balanced between each wing. (U.S. Air Force photo/Senior Airman Luke Hill)