As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING MX INSPECTION THE NR 1 MFD WENT BLANK AFTER AN ELECTRICAL BURNING SMELL AND FLICKERING SCREEN. MAINTENANCE REMOVED AND REPLACED THE NR 1 MFD, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.