OPERATOR AND PASSENGER IDLED OUT OF NO WAKE ZONE TO COMPETE IN A FISHING TOURNAMENT.  THE OPERATOR ACCELLERATED THE VESSEL FOR ABOUT 100 YARDS AND THE ENGINE SHUT OFF.  WHEN THE OPERATOR TRIED TO OPEN REAR COMPARTMENT HE WAS KNOCKED OFF THE VESSEL BY AN EXPLOSION.  OPERATOR AND PASSENGER WERE ABLE TO SWIM TO SHORE WHERE THEY WERE PICKED UP BY ANOTHER BOAT.  OPERATOR SUSTAINED NON LIFE THREATENING BURNS TO HIS LEGS AND WAS CHECKED OUT AT SCENE BY EMS BUT NOT ADMITTED TO THE HOSPITAL.
CREOLA                        