Airman 1st Class Derrick Scott, 28th Munitions Squadron conventional maintenance crew member, pieces together a Guided Bomb Unit-38 while Senior Airman Shawn Monteer, 28 MUNS conventional maintenance crew member, checks over a Technical Order manual here, August 20. The GBU-38 is a 500-pound bomb which is commonly used in the B-1B Lancer's arsenal. (U.S Air Force photo/Airman 1st Class Anthony Sanchelli)