01/31/2014: Sgt. Thomas G. Beams and Cpl. James Mason prepare an MV-22 Osprey for an engine wash on the flight deck of the amphibious assault ship USS Boxer (LHD 4). [slidepress gallery='preparing-an-osprey-engine-for-cleaning-at-sea']  Credit: USS Boxer (LHD 4):12/3/13 In the second photo, Cpl. James Mason prepares the engine of an MV-22…