Originally Posted by
Hunter58
I would think a big red cross over thecspeed tape to be quite a visual indicator...
Exactly.
@mm43 - The "B" system is the same as the "A" system. The square needing to be circled here is what should be done in the event of two pitot tubes, or even all three, icing over. Both situations defeat the voting logic employed in both systems.
@Cool Guys - As Hunter says, the PFD speed tape is blanked out with a big red X over it when UAS is detected, and ECAM shows that there has been an air data fault. The system *does* tell the pilots what has gone wrong.