As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKEOFF, THE FLIGHT CREW WAS UNABLE TO THROTTLE BACK THE ENGINE. THEY SUBSEQUENTLY SHUT THE ENGINE DOWN AND RETURNED TO FIELD. REPLACEMENT OF FUEL FLOW REGULATOR CORRECTED THE PROBLEM. DEFECTIVE FFR UNDER INVESTIGATION AT RRC. (X)