As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GRK - THE CREW REPORTED THAT THE CABIN OVERHEAD LIGHTS WOULD NOT TURN OFF, ARE STUCK IN THE ON POSITION WITH A STRONG ELECTRICAL SMELL. THE AIRCRAFT WAS FERRIED TO IAH WHERE MAINTENANCE REMOVED AND REPLACED THE CABIN LIGHT CONTROLLER, OPERATIONALLY TESTED WITH NO DEFECTS NOTED AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.