SoaringtheSkies,
I'm not sure of the RA logic, but its always going to be problematic ascertaining which one is right if you've only got two isn't it? Redundancy isn't that simple but I'll leave that to the systems engineers...
My only other post on the thread suggested that this problem was somehow related to the operation (or lack thereof) of the AT...and it would appear that it is now heavily implicated.
However, for me, this accident demonstrates that we still don't have the man-machine interface sorted out yet.
From 1950-450ft I hazard a guess there was some confusion about what the automation was doing.
A salutary lesson to all of us and a reminder that, we are in control not vice versa.
Some will use this accident to defend, with renewed vigour, the elimination of pilots from the flightdeck.
We need to use it to justify our ongoing participation in commercial aviation.