Airman 1st Class Erin Johnson removes a dump panel to provide internal maintenance on a B-1B Lancer bomber. U.S. Air Force Airman 1st Class Erin Johnson, an aircraft fuel systems apprentice assigned to the 28th Maintenance Squadron, removes a dump panel to provide internal maintenance on a B-1B Lancer bomber at Ellsworth Air Force Base, S.D., on March 25, 2010. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 533642-J-HKW92-964.jpg Photo Gallery