As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - INFLIGHT MCO-LAX. CREW REPORTED AIRCRAFT DEPRESSURIZED DURING CLIMB WITH CONTROLLER IN AUTO POSITION. EMERGENCY DECLARED FLIGHT DIVERTED DFW LANDED WITHOUT INCIDENT. FOUND NUMBER 2 CABIN PRESSURE FAULTED. REPLACED NUMBER 2 PRESSURE CONTROLLER. SYSTEM GROUND CHECKED NORMAL OPERATION.