Safety Concerns:
So how exactly ed do you determine which from the 3 serviceable systems are u/s?
Exactly what I wanted to know when I asked earlier, and never got an answer to, is if there is an AoA readout in the cockpit. Before driving an airplane into a situation where accurate AoA input is essential to control of the aircraft, we should be confident that at least one of the three AoA sensors is providing good data. From your question, I must assume that there is no way to adequately assess that aspect of the congtrol system. I suggest that there should be and it should be part of the preparation for that kind of test.
Hardcore hits a home run when he says:
Can we point the finger at the pilots as the sole cause? Maybe! Do we lose the chance to isolate and identify an inherent systemic flaw. Yes