As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5573 - DURING CVG APPROACH RECEIVED A GEAR DISAGREE WARNING WHEN LOWERED. CREW DECLARED AN EMERGENCY, ABORTED APPROACH, CYCLED GEAR AGAIN WITH NORMAL INDICATION AND THEN LANDED WITHOUT INCIDENT ON SECOND ATTEMPT. REPLACED THE MLG PRIORITY VALVE.