Yes, that was the Buffalo Demonstrator prang I was thinking of. Havn't seen that video clip for a few years. No injuries except to a few egos and the airframe.
I'd forgotten the DHC4 Caribou prang.
Crew: 3 fatalities / 3 on board
Passengers: 0 fatalities / 0 on board
Total: 3 fatalities / 3 on board
Airplane damage: Written off
Location: Gimli, MB (Canada)
Interesting that it was at Gimli - made famous by the "Gimli Glider" incident.
There have been two previous civil Caribous operating in PNG. Ansett in the 1960's and another more recently which I seem to recall pranged in the Kiunga area.