Originally Posted by
Mesabah
I doubt that, from the FARs
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The nacelle on the Max creates lift during high AoA, this is negative stability condition that violates the above FAR. The FAA approved the MCAS system to comply with that based on 0.6degrees of pitch, which they may rescind now that it requires 2.5. I would think the aircraft is in violation of part (d) regardless of a software fix.
I guess all the airbuses are illegal! The nacelles by the way don’t create negative stability. They did however change the handling from the 737NG such that a common type rating may not have been granted. MCAS was designed to provide handling like the NG’s in high AOA situations.