Incident Overview
A flight instructor reported that a pilot-rated student completed a confined landing on a slough with minimal corrections during a training flight. During the subsequent takeoff from a lake, the airplane accelerated onto the step. Just prior to lift-off, while still below takeoff speed, the student abruptly attempted to rotate the airplane out of the water. This action caused the heels of the floats to dig into the water, reducing airspeed.
Instructor Intervention
The instructor took control of the airplane and put it back onto the step. Realizing that insufficient water remained for a continued takeoff, the instructor aborted the takeoff. The airplane then exited the water onto wet grass, and the right wing impacted the ground.
Damage Assessment
The accident resulted in substantial damage to the right wing of the airplane. The pilot reported that there were no preaccident mechanical failures or malfunctions that would have precluded normal operation.
Aircraft Information
The airplane involved was a float-equipped type, used for instructional purposes. No further details about the aircraft model, registration, or operator were provided in the source.