This AOA probe issue is not new. There was a proposed AD from 2012 that suddenly was withdrawn. Makes you wonder.
It was withdrawn because all conic plates should have been replaced by 'new' flat plates.
Apparently the conic plates, although suspected, were not the source of this issue after all.
Airbii crew are informed by FOT and there is sufficient explaining material on the Flight OPS section of 'Airbus World'.