tmbstory
Found the one you were wondering about -
Date: 12 DEC 1960
Type: Douglas C-47A-5-DK (DC-3C)
Operator: Airlines of New South Wales
Registration: VH-INI
C/n / msn: 12252
First flight: 1944
Crew: Fatalities: 3 / Occupants: 3
Passengers: Fatalities: 0 / Occupants: 0
Total: Fatalities: 3 / Occupants: 3
Airplane damage: Written off
Aircraft fate: Written off
Location: off Sydney, NSW (Australia)
Phase: Unknown
Nature: Training
Departure airport: Sydney-Kingsford Smith International Airport, NSW
The DC-3C had departed Sydney for a pilot training flight, but failed to return. Some floating wreckage was found and recovered off Sydney.