Accident Description
Shortly after takeoff, the pilot observed that the airplane was not climbing as expected. He reported difficulty maintaining a comfortable airspeed to raise the wheels on the floats. While attempting to sustain a flying speed of 85 miles per hour and an altitude of 300 feet above ground level, he became distracted. The pilot noted that engine temperatures and pressures were normal, but vibrations were present until the propeller speed was reduced to 2,500 rpm and manifold pressure was adjusted to 25 inches of mercury.
Pilot's Account
The pilot cleared the landing lane on the lake and maneuvered to the intended landing area. He stated that he did not perform a before-landing checklist and that the landing gear (wheels) remained extended out of the floats. Upon contacting the water, the airplane nosed over.
Examination Findings
Post-accident examination of the airplane revealed that the wheels were fully extended on the floats. Inspection of the engine and other airplane systems found no anomalies that could explain the climb performance issue or any other malfunction.