On 20 November, 1970 a Cessna 320D "Skyknight" aircraft, registered VH-CPP,
disappeared on a flight from Bankstown, New South Wales to Coolangatta, Queensland, and no trace
has been found of the aircraft or its two occupants.
Search operations commenced early on the morning of 21 November and continued
for 6 days, during which helicopters and fixed wing aircraft flew a combined total of more than
203 hours. Numerous sighting and hearing reports were checked by aircraft and ground parties
but no trace has been found of the aircraft or its occupants.