normal to alternate law in bumps
In severe turbulence the AOA probes on the bus can be triggered into a disagree position which will trigger alternate law - removing many protections including the ability to stall the aircraft.
THe auto pilot will also disconnect at this point.
A reset of prims/secs etc may reengage normal law ( I think??? but not sure if it can only be done on the ground) .. then the AP becomes available again.
In big bumps it could always be possible to over control and overload the airframe if not careful.
Not saying any of this happened but if the ACARS was sending this type of report then might have occurred.
Will wait for the FDR but the airbus is certainly NOT uncrashable as AB would like us to believe..
W