As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5577 - EN ROUTE ATL-MSP RECEIVED A CABIN DOOR PRESSURE WARNING WITH RAPID CHANGES IN CABIN PRESSURE. CREW PERFORMED AN EMERGENCY DESCENT AND FLIGHT LANDED AT MSP WITHOUT INCIDENT. REMOVED, CLEANED AND REINSTALLED CONNECTORS FOR BOTH CABIN PRESSURE CONTROLLERS.