A4-202 crashed at Porgera on 11th June 1965
A4-147 crashed while landing at Tapini on 6th October 1968
A4-233 crashed in the Kudgeru Gap on 28th August 1972
A4-164 crashed on takeoff at Eliptamin on 18th October 1978
A4-285 damaged while landing at Efogi on the 5th September 2008 (recovered and scrapped)
Details courtesy of Darren Crick,
ADF Serials - RAAF A4 De Havilland DHC-4 Caribou