As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING PREFLIGHT INSPECTION THE CREW REPORTED THAT THE EMERGENCY LIGHTS WOULD NOT EXTINGUISH. MAINTENANCE INSPECTED THE AIRCRAFT, AND REMOVED AND REPLACED RELAY K0275, OPERATIONALLY TESTED THE EMERGENCY LIGHTS WITH NO DEFECTS NOTED. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.