Originally Posted by
Chu Chu
If ADR 3 might have an unreliability the system hasn't detected (which I think is what we're assuming), and you left it on, it seems like you could still end up with something like a large NWS deflection early in a cross-wind landing (because the ADR thought the airspeed was low when it wasn't).
I would expect the design engineers to identify such scenario and use yet another level of logic to avoid the trap. Which is it, if any in this particular scenario - I am not educated to even make a guess.