As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD FLT 5959 THE CREW REPORTED A BLEED 1/2 LOW TEMPERATURE MESSAGE ON THE EICAS DURING CLIMBOUT. THE AIRCRAFT RETURNED TO ORD AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND RE-SECURED THE NR 1 FAN AIR VALVE CLAMP. OPERATIONAL CHECKS WERE GOOD.