EE WAS TIGHTENING A LUG ON HIS TRUCK TIRE ON THELOWER SALT PAD WITH A SOCKET. THE LUG AND STUD BROKE WHILE HE WAS PULLING DOWN ON THE SOCKET. HE WAS STANDING UP, BUT THE FORCE MADE HIM SQUAT STRAIGHT DOWN LANDING ON HIS R. ELBOW THAT WAS BENT AT A 90 DEGREE ANGLE, PUSHING HIS RT. SHOULDER UP.