RedactedNarrative: V1 WAS IN THE WATER AND THE OPERATOR WAS ATTEMPTING TO START THE ENGINE. HE HEARD THE ENGINE BACK FIRE. THERE WAS A LOUD EXPLOSION AND THEN THERE WAS A FIRE IN THE ENGINE COMPARTMENT. A FEMALE PASSENGER WAS BURNED DURING THE EXPLOSION WHICH CAUSED HER TO JUMP INTO THE WATER. THE FIRE WAS ABLE TO BE EXTINGUISHED WITH SEVERAL FIRE EXTINGUISHERS PRIOR TO POLICE OR FIRE RESPONSE.