As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, THE NR 1 ENGINE STARTED TO ACCELERATE UNCOMMANDED. PULLED THE THROTTLE TO IDLE, ENGINE DID NOT RESPOND. THE NR 1 ENGINE WAS SHUTDOWN. THE AIRCRAFT RETURNED TO ILN WHERE IT LANDED UNEVENTFULLY. REPLACED THE LEFT TT2 SENSOR AND THE LEFT FUEL CONTROL UNIT IAW B767 MM.