Incident Overview
During the landing flare, the airplane ballooned. It subsequently touched down and began porpoising. The airplane lifted off the runway and touched down two additional times, porpoising before each lift-off. After lifting off a third time, the airplane was positioned approximately 30 degrees to the runway centerline, according to a pilot-rated passenger.
Passenger Actions
The passenger reported that he had told the pilot to go around after the last two bounce events. He stated that he applied power when he did not observe a response from the pilot after the third bounce.
Pilot Response
The pilot said he was "...still concentrating on the effects of the porpoising, and was not prepared to handle the sudden power increase."
Final Outcome
The airplane exited the runway edge and nosed over after encountering soft soil.