As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLT 3189 CREW REPORTED A LANDING GEAR UNSAFE INDICATION (RIGHT MAIN GEAR) DURING FLIGHT. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED UNLOCK BOX ASSEMBLY. OPERATIONAL CHECKED GOOD. AIRCRAFT WAS RELEASED BACK TO SERVICE.