ELLSWORTH AIR FORCE BASE, S.D.,-- Senior Airman Matthew Brink, 28th Maintenance Squadron aircraft fuel systems journeyman, removes a B-1B Lancer dump panel in order to provide maintenance on internal components, March 25, 2010. The 28th Maintenance Squadron provides on and off equipment repair and maintenance support for 26 B-1B Lancers. (U.S. Air Force photo/Airman 1st Class Corey Hook)