Clandestino, … on -800 it's possible to have AOA DISAGREE without AOA indication.
Does this imply that with the EFIS AoA display modification, the AoA displays are removed with a disagree alert ?
Or if without the EFIS display mod, the alert is given because AoA is used in other systems apart from stall warning ?
Thus IAS and ALT disagree alerts may be given simultaneously (with speed/alt errors), a consequence of AoA disagree, like the MAX ?