As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH- FLIGHT 2908 NR 1 BLEED OVERTEMP WHILE CLIMBING THROUGH FL200 WHEN ENTERING ICING CONDITIONS QRH COMPLETED. MAINTENANCE REMOVED AND REPLACED NR 1 FAN AIR BYPASS VALVE, PERFORMED A OPERATIONAL CHECK, NO DEFECTS NOTED, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.