Originally Posted by
jimtx
Is that certification requirement an airframe stabilty criteria. Because MCAS does not operate with the autopilot on and that nacelle effect would still be there. I don't know if the MCAS envelope would be normally encountered with the autopilot on but one case I envision is a long final where you stay clean and get a windshear event. If MCAS wasn't there when you performed the escape would you not still fly attitude no matter what the stick force was? I think you also can do the escape on autopilot and it wouldn't be affected but maybe you can't activate an automatic escape when clean.
The requirement is explicitly about required control forces, which is simply not applicable when the autopilot is engaged.
Bernd