Staff Sgt. Jacob Wallenstein, 37th Bomb Squadron aircrew flight equipment technician and flightline supervisor, disassembles an Advanced Combat Ejection System kit while performing monthly inspection checks at Ellsworth Air Force Base, S.D., July 16, 2013. The ACES kit contains a flotation raft that will inflate upon initiation of the kit providing survival gear when an emergency situation arises. (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)