As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) TRAILING EDGE FLAP POWER DRIVE UNIT BYPASS VALVE ROTARY ACTUATOR FAULTY. INVESTIGATION FOUND THE ROTARY ACTUATOR PURPLE INDICATION ARM PIVOT RETAINING PIN ADRIFT AND CAUSING INTERFERENCE BETWEEN THE ACTUATOR DRIVE AND ACTUATOR HOUSING.