Sorry Greybeard, my memory ain't what it used to be!
I think AMI was the Comanche 400 that got itself written off in a forced landing at Adelaide Airport c.1979(?).
Another quirk of CFS' ever changing fleet of trade-ins was that a C.182 disappeared and nobody realized this for two months! The Perth Airport staff thought it was at Jandakot while the Jandakot staff thought it was at Perth. It was eventually located abandoned at Orange NSW, so someone got a free transcontinental flight...