What was found
(AUS) RUDDER TRIM SWITCH FAULTY - INVESTIGATION FOUND CONTAMINATION BETWEEN THE SWITCH KNOB AND THE LIGHT PLATE CAUSING THE SWITCH TO STICK
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(AUS) RUDDER TRIM SWITCH FAULTY - INVESTIGATION FOUND CONTAMINATION BETWEEN THE SWITCH KNOB AND THE LIGHT PLATE CAUSING THE SWITCH TO STICK