RedactedNarrative: UNIT 1 WAS TRAVELING WEST ON WACCAMAW RIVER IN THE MIDDLE OF THE RIVER WHEN IT STRUCK A SUBMERGED LOG.  AFTER STRIKING THE LOG, IT WAS BRIEFLY VISIBLE ON THE SURFACE.  THE TRANSOM WAS CRACKED ON EACH SIDE OF THE MOTOR.  THE MOTOR HAD A CRACKED COWLING AND INTERNAL DAMAGE.