RedactedNarrative: THIS ACCIDENT OCCURRED AS V1 WAS BACKING AWAY FROM A BOAT RAMP AND THE MOTOR STALLED. AS THE DRIVER WAS ATTEMPTING TO RESTART THE MOTOR THE PASSENGER STEPPED TO THE BOATS REAR DECK AREA. DUE TO THE ADDED WEIGHT OF THE PASSENGER IN THE BACK, THE BOATS TRANSOM DIPPED UNDER THE WATERS SURFACE. V1 FILLED WITH WATER, SWAMPED AND OVERTURNED. THE DRIVER AND THE PASSENGER WERE EJECTED INTO THE WATER AS V1 TURNED OVER. BEING IN THE WATER CAUSED THE PASSENGER TO HAVE SHORTNESS OF BREATH.