Originally Posted by
SteinarN
I have read Bjørns posts.
My questions was more like rhetorical. I have no knowledge regarding the regulations aircraft have to comply with. But I have a feeling that if Boeing really is to comply with the regulations, I suspect it might be very difficult to fit a MCAS system that have the required redundancy. In fact I cant see how it can have any redundancy at all. Only two AoA sensors give exactly... zero... redundancy. Only two FCC gives exactly.... zero.... redundancy. Or might there be two separate processors in each computer? But still that would require at a bare minimum that all four processors was in the loop at any time.
So, if MCAS is a system that is regarded as required for safe flight, and thus might be required to have redundancy, can this be done?
If MCAS was required for safe flight the AD addressing the malfunction of MCAS would advise caution in the flight regime it was designed to keep you safe in.