As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLT 3861 - PILOT REPORTED THAT THE RIGHT GEAR UNLOCK LIGHT REMAINED ILLUMINATED AFTER GEAR WAS UP. THE AIRCRAFT RETURNED TO THE FIELD WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RIGHT GEAR LIMIT SWITCH, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (X)