As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) DURING CLIMB THE NR 2 BLEED OVERHEATED. SUSEQUENTLY, THE NO1 BLEED ALSO OVERHEATED, CABIN COULD NOT BE PRESSURISED. STRIP REPORT HIGH LIGHTED THAT THE NR 1 FAN AIR VALVE AND THE NR 2 TEMPERATURE CONTROL THERMOSTAT WERE BOTH FAULTY.