Vessel #2 advised that he was drifting in water with disabled motor.  Vessel #2 stated he had bow and stern lights on.  Vessel #2 then observed vessel #1 heading head on at him. It appeared vessel #1 made a hard right turn and collided with the pontoon.  Vessel #1 stated that he did not see vessel #2, made a hard turn to the right causing his boat to broadside vessel #2 on the left bow side, causing his vessel #1 to flip over causing an injury to a passenger.
Garfield                      