What was found
ON DESCENT INTO KJAC THE PILOT REPORTED THAT HIS LEFT ENGINE POWER LEVER WOULD REDUCE POWER, BUT THERE WAS NO RESPONSE FROM THE LEFT ENGINE WHEN THE PILOT ADVANCED THE LEFT POWER LEVER. THE PILOT SHUT DOWN THE LEFT ENGINE, DECLARED AN EMERGENCY AND LANDED AT KJAC WITHOUT INCIDENT. CONTRACT MAINTENANCE AT KJAC INSPECTED THE LEFT ENGINE; ALL ENGINE CONTROLS, THROTTLE, PROP AND CONDITION LEVER FUNCTIONED NORMALLY. INSPECTED THE P3 FILTER NO DISCREPANCIES FOUND. BLEW AIR THROUGH THE P3 LINES NO DEBRIS FOUND. GROUND PERFORMANCE RUN COMPLETED ON THE LEFT ENGINE AND THE ENGINE PERFORMED SATISFACTORY. A CHECK FLIGHT WAS COMPLETED AND THE ENGINE PERFORMED SATISFACTORY. NO DISCREPANCIES REPORTED ON SUBSEQUENT FLIGHTS.