As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON BASE LEG TO GOODYEAR AIRPORT, THE LEFT ENGINE LAGGED POWER TO LANDING. A SAFE LANDING WAS MADE AND THE AIRCRAFT WAS TAKEN TO MAINTENANCE FOR INSP OF THE LEFT ENGINE. ON GROUND RUN-UP, FOUND THE LEFT ENGINE WAS RUNNING RICH AT LOW POWER SETTINGS. THE LEFT FUEL SERVO WAS REMOVED AND SENT TO TCM FOR WARRANTY. A NEW FUEL SERVO WAS INSTALLED FROM STOCK AND TRIM RUN COMPLETED, THE AIRCRAFT RETURNED TO SERVICE. (X)