As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS - DIVERSION - FLT 0504 - AFTER DEPARTURE CREW REPORTED THE LEFT ENG ANTI-ICE C/B POPPED. CREW ATTEMPTED AN AIR TURN BACK TO PHX BUT WAS UNABLE TO DUE TO WEATHER. DIVERTED TO LAS AND LANDED WITHOUT FURTHER EVENT. MAINTENANCE TROUBLESHOT AND FOUND CHAFED WIRES ABOUT THREE INCHES BACK FROM THE INLET COWL TAI VALVE CONNECTOR. REPAIRED WIRES IAW SWPM 20-10-13. OPERATIONAL CHECKS WERE GOOD IAW BOEING 737-300 MM 30-21-13.