Not only is it way too fast to avoid tailplane icing, but the AP would overshoot the loc too.
The BFU asked for the tapes of the last 6 approaches and 6 out of 6 times the aircraft overshot the centre line. All intercepts were made at 220-240kts GND.
To me it looks as if they just banked the little bugger hard in order to correct onto the LOC and either did not pull, thus the descent rate developed or the aircraft was full of clear ice and had an "high speed stall" when they banked it.