As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TOP OF DESCENT, NR 2 ENGINE WOULD NOT THROTTLE BACK BELOW 83 PERCENT N1. ALL ENGINE PARAMETERS WERE NORMAL. NR 2 ENGINE WAS SHUTDOWN. POST-FLIGHT INSPECTION FOUND THE NR 2 ENGINE FUEL FLOW REGULATOR (FFR) INTERNAL DAMAGED. FFR REPLACED. AIRCRAFT GROUND RUN SERVICEABLE AND RETURNED TO SERVICE.