RedactedNarrative: On March 18, 2015 subject was operating his 23’ Wellcraft 6 miles offshore St. Lucie Inlet. He was engaged in fishing with three passengers. They were trolling at a low speed Approximately 8 miles an hour when subject noticed the boat was sitting low in the water. He and his passengers quickly put life jackets on. The boat filled with water since the stern was below the water line and the boat capsized at approximately 1300hrs. The vessel rolled upside down and was left with just the bow of the boat sticking out of the water. All persons on board were found floating in the water by Tow Boat US. They were all brought to safety advising they did not want medical treatment. All persons onboard received no injuries. 
  
  After the investigation the vessel was found to have a very slow leak from an unknown source. This caused the boat to slowly fill with water throughout the day. The other contributing factor was that the bilge was not operational. The vessel filled with water during their fishing trip and without the bilge to pump the water out the boat subsequently capsized.