As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING AN AUTOLAND, BOTH AUTOPILOTS DISCONNECTED AT 1000 FEET. ACFT GROUNDED. FOUND DFCS A FAULT 22-11189 AILERON SYNC INVALID LAST LEG. ACCOMPLISHED FIM 22-12 TASK 813. AILERON SENSOR RIGGING WITHIN TOLERANCE, REPAIR CONFIRMATION, OPS NORMAL. ACFT REMAINS CAT3 AUTOLAND AND HGS, SCREW REFLECTS SAME.