RedactedNarrative: On 7/17/16 at approximately 1105 hours a single vessel accident with no injuries occurred in Tampa Bay at the mouth of the Alafia River. The vessel, a 15' 1977 Sportcraft, had 5 persons on board when it struck an underwater object causing the transom to break, which then caused the vessel to sink. The subjects were picked up by a good samaritan and returned to shore.
  
  The accident had occurred as Operator was operating his vessel on plane in Tampa Bay at the mouth of the Alafia River, returning to Williams Park Boat Ramp. As Operator was about to pass channel marker #14 he struck something in the water with his outboard, which caused the vessel's transom to break apart from the vessel. Operator stated that water then quickly filled the vessel leaving only enough time to retrieve life jackets for the occupants before sinking.
  A good samaritan vessel that was passing by stopped and picked up Operator and his passengers and transported them back to the boat ramp. Operator stated that he had previously replaced the floor in the vessel and that it had no built in flotation which he believes caused it to sink quickly.