UNIT 1 WAS TRAVELING TOWARDS ANGELS LANDING THE VESSEL BEGAN TO TAKE ON WATER FROM WAVES COMING OVER THE BOW. THE BILGE PUMP APPARENTLY WAS NOT WORKING SO THE VESSEL BEGAN TO FILL WITH WATER. A BIG WAVE CAME FROM THE PORTSIDE THE BOAT THEN FLIPPED OVER AND BOTH PASSENGERS WENT INTO THE WATER. A CONCERNED CITIZEN SOON SAW THEM AND PICKED FROM THE WATER. THEY WERE LATER TUNED OVER TO EMS.