Originally Posted by
Momoe
I wasn't thinking about the Amsterdam crash (which had a lot of other factors) but had a similar train of thought, given that a failed AoA sensor appears to cause serious trim issues, why not have a comparator between left and right AoA. If values are outside parameters, set trim to neutral, maintain AT (Reducing thrust will reduce nose up moment but pilots are familiar with this on 737) and climb which isn't perfect but seems to be a damn sight better than the current situation.
Because this means your total architecture needs to be different, with computers comparing signals and reverting to different flight laws with failures, as in FBW on Airbus and newer Boeing types (777, 787). This would require the entire system to have to be recertified and it no longer being type compatible with older 737's.