Staff Sgt. Amaya Talley, left, and Airman 1st Class Brad Harrel, both 62nd Aircraft Maintenance Squadron silver AMU crew chiefs, move a generator away from an aircraft Jan. 13, 2010, at Joint Base Lewis-McChord, Wash. The generator must be a certain distance away from an aircraft before it takes off. (U.S. Air Force Photo/Airman Leah Young)