As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW CREW REPORTED PRESSURIZATION PROBLEMS DURING CLIMB-OUT. EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED BOTH CABIN PRESSURE CONTROLLERS & PRESSURIZATION CONTROL PANEL MPN 130590-5. SYSTEM GROUND CHECKED NORMAL OPERATION CLOSED.