As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX-YVR - FLT NR 815 - AIR TURNBACK DUE TO NR 1 ENGINE BLEED FAULT. BLEED WENT TO OVERHEAT CONDITION TWO MINUTES AFTER SELECTED ON. AIRCRAFT RETURNED TO PHX AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND SAFETY WIRE BROKEN AND LOCK PIN BACKED OUT OF FAN AIR VALVE. REINSTALLED PIN AND SAFETIED. RAN ENGINE, TEMPERATURE 185 DEGREES CELSIUS. AIRCRAFT RETURNED TO SERVICE. (M)