Photo Information Senior Airman Jennifer Peterson (left) and Staff Sgt. Jeremiah Phelps prepare to move Mark 84 bombs inside a hardened structure April 21, 2010, at Ellsworth Air Force Base, S.D. Both Airmen are assigned to the 28th Munitions Squadron as conventional maintenance crew chiefs. (U.S. Air Force photo/Airman 1st Class Corey Hook) Download Details Share Photo essay: Warehousing the Mark 84 bomb 28 Apr 2010 | Airman 1st Class Corey Hook PRINT SHARE ELLSWORTH AIR FORCE BASE, S.D. (AFNS) -- Munitions crewmembers with the 28th Munitions Squadron warehouse 2,000-pound Mark 84 bombs inside a hardened structure here April 21. View the slideshow.