What was found
DURING DESCENT SHUT DOWN RIGHT ENGINE, S/N 1605, DUE TO ENGINE DID NOT REDUCE TO IDLE WHEN THRUST LEVER WAS MOVED TO IDLE POSITION. FOUND FUEL CONTROL HAD INTERNAL MALFUNCTION. REPLACED FUEL CONTROL, MFG P/N 743602-5. ENGINE OPERATION CHECKED NORMAL. ENGINE TOTAL TIME 27,452, TOTAL CYCLES 23,975.