RedactedNarrative: Vessel A is a fiberglass hull, jet propulsion vessel which had been operated for most of the day in Maranacook Lake with 5 adults on board. As the persons on board describe the incident, the boat was fine for the day and the noticed it was taking on water. 
  
  The operator started the engine and engaged the throttle in attempt to get the vessel to the nearest island. As he did so, it took on more water and quickly sank in approximately 15 feet of water. 
  
  All occupants were in the water and picked up by some passing boaters. After the vessel was recovered, it was determined that the engine compartment vents were likely what helped flood the vessel. It's believed that with the number of adults aboard, the naturally low freeboard to the vessel and other boat wakes contributed to water pouring in the engine compartment vents. The boat took on water without the operator knowing until the last minute. No bilge pump was installed to help with flooding.
  