As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA INFLIGHT T1970/19JAN , CABIN PRESSURE CLIMBED THROUGH 12000 FEET. AT 13000 FEET, THE CAPTAIN MANUALLY DEPLOYED THE OXYGEN MASKS AND DESCENDED TO 10000 FT. NO AUTO INOPERATIVE LIGHT IN AUTO NR 2. RETURNED TO MIA AND LANDED WITHOUT INCIDENT. REPLACED ALL CANNISTERS AND REPACKED MASKS. REPLACED CONTROL PANEL NUMBER 2 PRESSURE CONTROLLER. SYSTEM GROUND CHECKED NORMAL OPERATION.