Tubby,
Thanks for confirming what I believe to be the case - having "never-knowingly" experienced it myself.
We don't know how subtle the onset might have been, nor if the PF would continue to be influenced by ASI readings even after the SPD-LIMIT warnings appeared on the PFDs. His pushing the nose down cannot be ruled out yet, in my opinion. This could be a case of high-speed LOC, followed by a recovery which ended in a normal stall at medium-to-low altitude, at which stage the pitots might still be de-icing themselves.
Initiating pitch-thrust is reasonably straightforward in level flight; in a steep descent it might lead to a high AoA.
Regards,
Chris
PS
3holelover, I rest my case!
