EE ATTEMPTED TO REMOVE THE CAP FROM THE SOLUTIONCARBON CANISTERS AND FAILED TO REALIZE THEY WERESTILL UNDER PRESSURE. THE O RING FAILED AS THE CAP WAS LOOSENED, CAUSING STEAM TO ESCAPE. EE FLE D AREA, TRIPPING AND HITTING HIS SHOULDER ON A HANDRAIL. THE STEAM CONT. TO ESCAPE AND SPRAY EE ON THE BACK AND THE BUTTOCKS. HE WAS TRANSPORTEDTO ER. HE WAS RELEASED TO WORK WITH RESTRICTION