As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL - AFTER TAKEOFF SHUTDOWN NR 2 ENGINE, S/N 4413, DUE TO OVERSPEED AND NO RESPONSE TO THRUST LEVER MOVEMENT. FOUND INTERNAL MALFUNCTION IN FUEL FLOW REGULATOR MFG P/N FFR101MK10. REPLACED FUEL FLOW REGULATOR. ENGINE OPERATION THEN CHECKED NORMAL.