RedactedNarrative: THIS ACCIDENT OCCURRED DUE TO A MECHANICAL FAILURE OF THE ENGINE, CAUSING THE VESSEL TO ABRUPTLY SLOW AND POSSIBLY SURGE FORWARD ACCORDING TO OPERATOR 1.  THIS CAUSED VICTIM 1 TO LOSE HER BALANCE FROM HER SEATED POSITION, AND WAS EJECTED OVER THE FRONT RAIL OF VESSEL 1.  VICTIM 1'S PEDESTAL SEAT WAS APPROXIMATELY THREE FEET FROM THE FRONT RAILING OF THE VESSEL, AND SITUATED NEARLY THE SAME HEIGHT AS THE PROTECTIVE RAILING. WHEN THE VICTIM WAS EJECTED OUT OF THE VESSEL, OPERATOR 1 IMMEDIATELY CUT THE POWER TO THE ENGINE.  THE VICTIM WAS LOCATED, TRAPPED AGAINST THE OUTBOARD MOTOR BELOW THE WATERLINE, DUE TO HER PERSONAL FLOTATION DEVICE BEING CAUGHT IN THE MOTOR'S PROPELLER.  THE OPERATOR AND A PASSENGER JUMPED INTO THE WATER, AND RETRIEVED THE VICTIM.