INJURED WAS BENDING DOWN BETWEEN THE RIB AND THE SHUTTLE CAR TO PICK UP A CABLE. PEOPLE OUTBY WERE TAKING TUBES DOWN. THE RIB WHERE THE TUBES WERE BEING TAKEN DOWN CAME OUT KNOCKING ALL OF THE TUBES DOWN UNEXPECTEDLY. ONE OF THE TUBES CAME DOWN AND STRUCK THE INJURED ON THE RIGHT SHOULDER. THE INJURY WAS DIAGNOSED AS A STRAINED SHOULDER.