It appears this Colt (a tailwheel conversion) was withdrawn from use and sold for spares in January 2011. I find it surprising. In the most recent photographs of the aeroplane taken in 2009 at Redcliffe, Queensland, ICAO Code YRED, it looks in pristine condition. Can't see any record of an accident but maybe it was just knackered. It's possible I suppose that some of the airframe is still at Redcliffe.
Cheers
Rob