I had an experience with a 412 that I was flying always with AFCS off. One time, in maintenance flight, checking all the equipments, i only turn it on while flying, and because I already had a bad experience while on Scas and hovering, (That was that the AFCS on SCAS mode and with no force trim on starting kicking inputs, and had to switch it off), this time I turn it all off before landing.
Next couple of days, i had a flight, and I noticed in hovering with no conditions that should experience this, my cyclic was almost on the left limit position.
I reported that to the other guy that replaced me. I didn't had the chance to talk to him at that time but he solved it, and I think it was only by turn it all on on the ground.( when I managed to talk to him, some time had passed and he didn't remember of that).
So I'm still not exactly sure how this specific situation can or not work.
The B212 is slighty different but the principle should be the same, I suppose...
Thanks for the answer Stacey...