What happened
The pilot landed on Anderson Lake to obtain fuel for the aircraft. After refueling, he initiated his first attempt to takeoff but aborted the maneuver when the aircraft was slow to accelerate. Approximately 20 gallons of fuel were then drained from the aircraft. Another takeoff was started by making a step turn to the departure heading. The pilot stated that he lifted off at 45 mph with 1/2 flaps. He stated that it appeared the engine was not developing full power and that he possibly encountered a wind shear condition. After reaching about 100 ft AGL, the plane would not climb. Subsequently, the plane collided with transmission lines along a road that divided Anderson Lake and King Lake. The aircraft then crashed into King Lake.
Findings
The pilot reported that the engine did not develop full power during the second takeoff attempt. He also noted a possible wind shear condition. The aircraft failed to climb after liftoff and struck transmission lines before impacting the water.
Safety message
Pilots should be aware of the potential for engine performance issues following refueling operations, particularly if fuel contamination is suspected. Draining fuel can help identify water or debris in the system. Additionally, wind shear conditions near lakes can significantly affect climb performance and must be carefully evaluated during takeoff.