As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2992 THE CREW REPORTED A BLD 1 OVERTEMP MESSAGE ON EICAS AT 1000FT ON T/O IN ICING CONDITIONS. THE MESSAGE CLEARED IN LESS THAN ONE MINUTE, THE QRH WAS ACCOMPLISHED WITH NORMAL OPS AFTER THAT. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 1 FAN AIR VALVE FILTER, LEAK AND OPERATIONAL CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.