Takata:
Then, the advisory (no warning, no check list) at 2014Z might be also linked to the unreliable Air data provided by the pitots as Thales and Goodrich probes are interchangeable.
From pdf:
Air data probes also
provide information for secondary purposes such as
engine control and cabin pressure differential.
I think Takata makes an interesting point and don't think I have seen it mentioned previously. That is that an ice clogged pitot might also be related to the cabin pressure ACARS msg as I assume the pressure differential is between cabin pressure and outside pressure. Previously I think the options discussed were either a climb or dive greater than 1800fps, or possibly some sort of cabin depressurization.
Can anyone with more probe knowledge comment on what readings in terms of AS, AOA, and ALT we would expect to see with an ice clogged pitot?
I guess then it gets more complex in terms of determining how the computers would have reacted to this sudden change.