As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT ON ARRIVAL WHEN THE AUTOPILOT WAS DISCONNECTED, THE CAPTAIN LOST TOTAL CONTROL OF THE AILERONS DURING SHORT FINAL. F/O'S SIDE HAD MINIMAL INPUT. LANDED WITHOUT INCIDENT. MAINTENANCE R & R THE AILERON DISCONNECT UNIT, AND AS A PRECAUTION THE DISCONNECT CABLE. THE UNITS WERE OPS TESTED WITH NO DEFECTS NOTED, ACFT TEST FLOWN SATISFACTORILY, AND WAS APPROVED FOR RETURN TO SERVICE.