EE WAS ASSISTING A WELDER ON THE #2 COMPARTMENT FAN PROJECT. HE WAS BENT OVER THE FAN TO HELP HODL A PART IN PLACE AND APPARENTLY TWISTED WRONG,. HE FELT PAIN IN HIS BACK A SHORT TIME LATER AN D TAKEN TO DR. HE WAS DIAGNOSED WITH A MUSCLE SPASM AND GIVEN PRESCRIPTION MEDICATION FOR PAIN AND A MUSCLE RELAXANT.