As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 9806, CREW REPORTED BLEED 1 OVERTEMP WARNING ALTERNATING WITH BLD 2 LOW TEMP CAUTION MESSAGE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED NR 1 FAN AIR VALVE IAW AMM 36-11-03. OPS CHECK GOOD IAW AMM 36-00-00. THE AIRCRAFT RETURN TO SERVICE.