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Old 12th Mar 2019, 02:42
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GordonR_Cape
 
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Originally Posted by oldoberon
lancs said " From the Lion Air thread, I believe MCAS cycles between the 2 AOAs between each flight..""..

If the system uses 1 &2 on alternate flights both are wired in, I would think it is relatively simple to put a 1-2 switch in the cockpit but it is only active when the red light / HUD shows there is a difference, that could possibly immediately allow crew to rectify problem
Boeing's software update for the 737 MAX should address the AOA-1 vs -2 inconsistency (assuming that is its scope), obviating the need for physical switches. That also seems a good stage to include reasonability checks on AOA data before triggering MCAS.
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