Airman 1st Class Lawerence Bowman, left, Det. 303, 442nd Aircraft Maintenance Squadron structural maintenance apprentice, and Staff Sgt. Aaron Williams, 442nd AMXS structural maintenance apprentice, cleans foreign object debris off the A-10 Thunderbolt II’s wing at Whiteman Air Force Base, Mo., July 1, 2013. This is a requirement for each operational procedure done on the A-10 jet to prevent damage from FOD left behind. (U.S. Air Force photo by Airman 1st Class Keenan Berry/Released)