Originally Posted by
FCeng84
AOA vane position is not valid until up to an airspeed well above that for taxi. Revised MCAS logic keeps MCAS from acting at all if an AOAs signals differ by anywhere near as much as appears to have been the case with the Lion Air accident data. I don't think the MCAS changes do anything for stick shaker so the shaker on the side with AOA failed high would activate as it did on Lion Air, but no MCAS.
Yes, I think the software fix will be mcas disabled due aoa disagree or limiting it power. Hopefully the aircraft still in stable envelope. The training with mcas should be mandatory. Since there no mention of mcas notification.
The ground aoa sensor system troubleshooting need to be fixed also, since it somehow seems more fragile than NG series, and lion air ground crew can't fix it.