DozyWannabe Right, but it's not really particularly relevant - all it means is that for brief periods, both the AoA and IAS data were effectively NCD. It wouldn't make much difference.
IIRC it shut off the stall warning horn until the measurements recovered.
Shutting off the stall warning cannot have helped the pilots understanding of the situation.
IIRC the stall warning came back on again just after somebody had tried nose-down, a combination of events which could be considered positively misleading.