Originally Posted by
Mr Optimistic
When speed did get below 60kt at some time (which it must have done to inhibit warner) why did that alone not force change to abnormal attitude law of and by itself given the 'or'?
One possible explanation would be a prior ADR disagree, invalidating the speeds. If the speeds are considered invalid this could be an explanation why the System did not switch to abnormal law based on speed threshold.
This ADR disagree could result from asymmetric flow conditions to the different Pitots and thus large discrepancies when flow into one pitot was stalled while still attached in the other one(s).