What was found
AFTER LEVELING OFF AT 14000' LEFT FUEL PRESSURE ANNUNCIATION CAME ON, STNADBY PUMP TURNED ON, FUEL PRESSURE ANNUMC REMAINED ON, FLOW DROPPED, ENGINE ROLLED BACK. PUSHED PROPS/POWER UP, LEFT ENGINE REMINED ROLLED BACK (11%) N1. SHUTDOWN ENGINE CUTOFF, FEATHERED, FIREWALL, RAQN THROUGH QRH FIRE/FAILURE ABOVE 1500. NO FOD/FIRE/OIL LEAK, RAN QRH FOR AIR START RESTARTED NORMAL RAN WITH AND WITHOUT STANDBY PUPMP FOR REST OF FLIGHT. LANDED WITH L STANBY PUMP ON AS PRECAUTIN, TEMPS PRESSURES NORMAL.