Originally Posted by
DaveReidUK
Wasn't the AoA indication on the PFD (presumably with each side driven independently) a payable option on the MAX from the start, albeit one that few, if any, operators took up ?
IIRC, it was bundled with the "AOA DISAGREE" annunciation option.
The AOA indicator (dial) is practically worthless. For the genuine value that awareness of AOA might have, there are no procedures for its use, no requirement for its use, and with some exceptions of individual preference, out of a pilot’s instrument scan. Consider the accidents where truly essential elements of the basic T (e.g. airspeed) were apparently out of the flight crew’s scan.
The presence of an indicator or display does not necessarily equate to crew awareness, let alone reliance on it, no matter how valuable some think the parameter is.