As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5662 - ON FINAL APPROACH INTO CVG SELECTED GEAR DOWN AND RECEIVED GEAR DISAGREE WARNING FOR THE NOSE LANDING GEAR. EMERGENCY DECLARED, RAN QRH, CYCLE GEAR HANDLE ALL GEAR SHOWED DOWN AND LOCKED. A/C LANDED SAFELY AT CVG. REMOVED AND REPLACED NLG SELECTOR VALVE.