As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED ON APPROACH WHEN FLAPS WERE MOVED TO 25 FROM 20 TRAILING EDGE FLAP 95YM MESSAGE. ACCOMPLISHED GO AROUND. WHEN FLAPS WERE MOVED BACK 20 MESSAGE DISSAPEARED. FLIGHT LANDED MIA WITHOUT INCIDENT. FOUND NUMBER 1 CONTROLLER AT FAULT. REPLACED NUMBER 1 FLAP SLAT ELECTRONICS UNIT. SYSTEM GROUND CHECK NORMAL OPERATION.