As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED DUE TO NR 2 ENG ITT RISING ABOVE LIMITS. THRUST LEVER WAS REDUCED TO IDLE, BUT ITT CONTINUED TO CLIMB. NR 2 ENGINE WAS SHUT DOWN IN FLIGHT, BUT ITT CONTINUED TO CLIMB. THIS WAS AN INDICATING ISSUE. REPLACED MAIN ENG HARNESS. OPERATIONS CHECKED GOOD.