Primary finding
Probable cause
The pilot's failure to maintain directional control during takeoff from a lake.
Investigator assessment
Analysis narrative
The pilot in the float equipped airplane reported that, during takeoff into the wind from a lake, the left wing suddenly lifted. The pilot attempted to correct with aileron input; however, the right wing contacted the water. The floatplane nosed over and partially sank. The left wing was substantially damaged. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.