The amethystine python scaled new heights when it hitched a ride on the aircraft.
But unlike Snakes on a Plane, the 2006 thriller, starring Samuel L. Jackson, there was no danger to anyone inside the Bombardier 400.
It was shortly after take-off when a passenger saw the snake and raised the alarm with the crew.
There was nothing anyone could do to help the stricken python which was in a wing flap mechanism just a short distance from Qantas' famous flying kangaroo logo. Altitude, freezing temperatures and high speedwere taking their toll.
Passengers could only watch as the animal's tail was whipped against the rear end of the plane, the impact leaving a trail of blood.
The python was dead on arrival when QF191 touched down at Port Moresby at 7.44am with 40 passengers and four crew on board.