Incident Overview
A training flight conducting step taxi operations on a river ended with the aircraft colliding with a sand bar and nosing over. The accident occurred during a training flight, with a certified flight instructor (CFI) and a student pilot on board.
Pilot Statements
The CFI reported that he could not see clearly from the rear seat and was not aware of the sand bar until the aircraft struck it. He did not file an accident report following the incident.
The student pilot stated that he never saw the sand bar. He reported that he only reduced power after the aircraft ran aground.
Operator's Opinion
The operator offered an opinion that the accident would not have occurred if the student had not reduced power when he observed the sand bar. However, this statement contradicts the student's account, as the student claimed he did not see the sand bar before impact.
Sequence of Events
During step taxiing on a river, the aircraft encountered a sand bar. The collision caused the aircraft to nosed over. No further details about the aircraft type, registration, operator, location, or injuries were provided in the source.