What happened
The flight involved an instructor and a student pilot conducting landing practice. The pair attempted to land on a short grass runway. According to the instructor's account, the aircraft touched down at a speed that was too high for the available surface conditions. Due to the excessive touchdown speed and the nature of the grass surface, the airplane could not be brought to a stop within the confines of the runway.
The instructor evaluated the situation and considered initiating a go-around maneuver. However, after assessing the remaining distance, he determined that there was insufficient runway left to safely execute a go-around. Consequently, the aircraft continued past the end of the paved or prepared surface. It departed the runway area, crossed a ditch located adjacent to the threshold, and ultimately came to a rest in a nearby road.
The investigation
The primary source of information regarding the sequence of events is the statement provided by the instructor pilot. No mechanical failure or external environmental factors were cited as contributing to the overrun. The investigation focused on the operational decisions made during the final approach and landing phase.