Airman 1st Class Christopher Zivny, 28th Aircraft Maintenance Squadron electronic warfare apprentice, removes a panel to replace grommets from a B-1 bomber as part of routine maintenance Jan. 5, 2016. The 28th AMXS performs regular maintenance to ensure all 27 aircraft in the 28th Bomb Wing’s fleet remain in working condition. (U.S. Air Force photo by Airman 1st Class Denise M. Nevins/Released)