As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) LT WING FLAP DRIVE TORQUE TUBE ASSEMBLY BEARING SEIZED BETWEEN INNER AND OUTER RACES AND ALSO IN THE BEARING RETAINER ASSEMBLY PNO 720534A. THE SHAFT PNO 741156A HAD BEEN TURNING INSIDE THE INNER RACE AND HAD WORN ENOUGH TO LET THE TENSION OFF THE BEARING RETAINING NUT. THE NUT WAS STILL LOCKED IN POSITION BY THE KEYED RETAINING WASHER.