As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5445 DURING CLIMBOUT OF CVG RECEIVED A CABIN DOOR CAUTION. CREW DECLARED AN EMERGENCY AND RETURNED TO THE FIELD. PERFORMED AN OPERATIONAL CHECK OF CABIN DOOR INDICATION SYSTEM AND PERFORMED PRESSURIZATION CHECK. DISCREPANCY COULD NOT BE DUPLICATED.