As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL330, CABIN WAS CLIMBING 800-1000 FPM. CREW WAS UNABLE TO CONTROL PRESSURE MANUALLY. PERFORMED COM PROCEDURES AND MADE AN EMERGENCY DESCENT. AUTO PRESSURE CONTROLLER BEGAN WORKING AGAIN AT 18,000 FT. CABIN ALTITUDE HAD REACHED 12,500 FT MAXIMUM. FLIGHT LANDED SAFELY AT MCO. MAINTENANCE REPLACED THE RIGHT PACK PRESSURE REGULATOR VALVE AND PILOT PRESSURE REGULATOR. AIRCRAFT RETURNED TO SERVICE.