Incident Overview
During an authorized local solo practice flight, a student pilot with 31 hours of flight time was performing takeoffs and landings. The pilot reported that the second landing was "hard" and a nose wheel shimmy was noted during the taxi back for takeoff.
Sequence of Events
Just before liftoff on the next takeoff, the aircraft veered sharply to the left, departing the runway. It then crossed a taxiway and collided with an embankment of drying pistachio hulls arranged parallel to the taxiway.
Pilot Statement
The pilot stated that there was no mechanical malfunction of the aircraft.