UNIT 1 WAS ATTEMPTING TO DISLODGE ITS ANCHOR LINE BECAUSE IT WAS ENTANGLED IN THE MOTOR PROP. WHILE ATTEMPTING TO CUT THE ANCHOR LINE FROM THE PROP, A WAVE CAME OVER THE TRANSOM. THE BOAT BECAME UNSTEADY AND CAPSIZED. BOTH PEOPLE WERE IN THE WATER. THE HUSBAND WAS TRAPPED UNDER THE BOAT BUT MANAGED TO ESCAPE. HE ATTEMPTED TO ASSIST HIS WIFE BUt SHE DRIFTED AWAY WITH THE CURRENT AND DROWNED.