As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING CLIMB-OUT ON FLGHT 3764 - THE CREW REPORTED A LANDING GEAR WARNING. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR RELAY BOX, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (M)