Summary
A float-equipped airplane, after executing a go-around due to traffic, was on the downwind leg at 500 feet above ground level (AGL) at an airspeed of 70 to 75 knots. The intended landing was to be made to the northeast on the Hudson River into a 6-knot wind. The downwind leg was flown over land, parallel to the shoreline.
Flight Sequence
According to the pilot, while on the downwind leg he sensed a slight sinking sensation. In response, he advanced the throttle and relaxed back pressure on the control wheel. The pilot did not remember details of the flight thereafter. The passenger also reported that the airplane began sinking on downwind. He stated that both he and the pilot pulled on the control wheel, raising the nose in an unsuccessful attempt to arrest the descent. The airplane subsequently struck the ground.
Pilot and Passenger Reports
The pilot reported that the winds were from the northeast at 6 knots. The passenger corroborated the sinking sensation and the joint effort to raise the nose. No further details from either occupant were available regarding the moments after the impact.
Examination
An examination of the airplane revealed no mechanical malfunctions that could have contributed to the event. The absence of mechanical issues suggests the sinking and subsequent ground contact were not caused by a mechanical failure.