G'day, LLD.
Not too much info around that I've seen - there was an article in the Cairns Post (fine source of aviation accuracy that it is) yesterday that said something like 'the aircraft suffered overtorque, making warning lights come on'.
I haven't flown the 412 so don't know whether overtorques happen in the usual way when you just pull the collective too hard, or if there's some kind of limiting system that could malfunction and do it for you.
Expensive exercise anyway.