RedactedNarrative: VESSEL 1 WAS EASTBOUND ABOUT TWO MILES OFFSHORE COMING BACK IN FROM FISHING WHEN VESSEL 1 STARTED TAKING ON WATER. VESSEL 1 RECENTLY HAD A NEW 225 HP 4 STROKE ENGINE MOUNTED TO THE TRANSOM WHICH MAY HAVE CAUSED THE VESSELS' TRANSOM TO CRACK AND BEGIN TO TAKE ON WATER. VESSEL 1 EVENTUALLY WENT UNDER AND CAPSIZED. ALL PERSONS ON BOARD WERE EQUIPPED WITH PFD'S AND WERE WEARING THEM WHEN ARRIVING ON SCENE. VESSEL 1'S PASSENGERS WERE PICKED UP BY A GOOD SAMARITAN. USCG WAS NOTIFIED OF VESSEL HAZARD.