As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA T921/17 EN ROUTE MCO-MIA TRAILING EDGE FLAPS DISAGREE LIGHT ON ENGINE INDICATING AND CREW ALERT SYSTEM. LANDED MIA WITHOUT INCIDENT WITH FLAPS AT 20 ABNORMAL CONFIGURATION. RESEATED NUMBER ONE FLAP/SLAT ELECTRICAL UNIT. SYSTEM GROUND CHECKED NORMAL OPERATION. CLOSED