For JT610, the data shows the following: AOA IS NOT FAULTY. IT IS INSTALLED INCORRECTLY. There is a constant offset between L & R, that is not a fault of the sensor, that is an install error.
As I've stated before - an early lionair thread went thru that scenario-
and supposedly impossible due to unequal spacing of install holes - This is not to rule it out
Cases described historically had to do with wrong template used from day one at factory - ( which in this case seems unlikely )
with both physical and electrical ( bad or wrong connector plug ) being possible again does not rule out an incorrect install
and then the fubar airspeed and other warnings may lead to a code flaw of some sort
all of which could lead to more than one gotcha in the system -
Hopefully a closer look at FDR and CVR data plus inspect records/calibration will be made available ... or perhaps the acrtual part (AOA sensor)