Originally Posted by
GemDeveloper
Will the FAA and the other airworthiness authorities insist on flight tests that demonstrate the stalling and handling characteristic of the bare aeroplane?
I'm pretty sure that flight testing was done as part of the original certification process, and it was the results of these tests that determined the need for something like MCAS. I believe I also read that MCAS inop testing was part of the recertification protocol since the new protections put in place may create a situation where MCAS is deactivated when it might actually be needed (i.e. a single AOA vane failure, but this time the aircraft is actually approaching a stall).