20th, 96th AMUs compete for bragging rights Published July 13, 2016 By By Airman 1st Class Stuart Bright 2nd Bomb Wing Public Affairs BARKSDALE AIR FORCE BASE, La. -- Staff Sgt. Charlie Mathis, 20th Aircraft Maintenance Unit Crew Viper 7 crew member, prepares the conventional rotary launcher for loading at Barksdale Air Force Base, La., July 8, 2016. One crew from the 20th AMU and one crew from the 96th AMU compete for being deemed “Top Weapons Load Crew for the Quarter.” (U.S. Air Force photo/Airman 1st Class Stuart Bright)