Originally Posted by
Smooth Airperator
...at this time is there any suggestion we are going to get a third AoA wired up?
I think the proposed solution is that both existing vanes will be used simultaneously rather than consecutively to provide a dual channel input to to the system which requires only a software change. Adding a third vane to existing aircraft is a whole different ball game and will delay things even further.
Even with three AoA inputs and polling software, there is no guarantee that MCAS would be sensor error free. Depending on where this extra vane is located, there are still certain situations such as uncoordinated flight, where all three vanes are outputting a different value to the FCC.