As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 35,000 FT CABIN ALTITUDE BEGAN TO CLIMB AT 500 FPM TO 1800 FPM. AIRCRAFT INITIATED DESCENT AND CABIN PRESSURE STABILIZED AT 12.000. AIRCRAFT CONTINUED AND LANDED AT STL WITHOUT INCIDENT. RESET PRESSURE CONTROL SYSTEM CIRCUIT BREAKER AND OPERATION CHECKED PER BOEING M/M.