As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL INFLIGHT T335/26JAN ORD TO SAT. UNABLE TO MAINTAIN PRESSURIZATION MANUALLY. BOTH PRESSURIZATION AUTO CONTROLLERS WERE INOPERATIVE. ALL OXYGEN MASKS DROPPED. LANDED STL WITHOUT INCIDENT. REPLACED NUMBER ONE AND TWO CABIN PRESSURE CONTROLLERS AND OUTFLOW VALVE ACTUATOR. SYSTEM GROUND CHECKED NORMAL OPERATION.