As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INFLIGHT T46/26SEP ORD TO LHR. NR 1 ENGINE HIGH ENGINE GAS TEMPERATURE INDICATION. CREW SHUT DOWN NR 1 ENGINE. LANDED YYZ WITHOUT INCIDENT. SINGLE ENGINE TIME 15 MINUTES. REPLACED ELECTRONIC ENGINE CONTROL. SYSTEM GROUND CHECKED NORMAL OPS.