(Back) Staff Sgt. Jon-Michael Rull, 28th Maintenance Squadron hydraulics craftsman, and Airman 1st Class Chad Myers, 28 MXS hydraulics journeyman, prepare to bench test a B-1B Lancer main landing gear emergency accumulator, March 27. The main landing gear emergency accumulator is tested under 6,000 pounds per square inch of pressure to test for piston seizure. (U.S. Air Force photo/Senior Airman Marc I. Lane)