What was found
(CAN) DURING CLIMB, JUST AFTER THE BLEEDS WERE SELECTED ON, THE LT ENG TORQUE STARTED FLUCTUATING. THE PILOT THEN SHUT DOWN THE ENG IAW THE PILOT`S QUICK REFERENCE HANDBOOK & THE ACFT FLEW BACK TO THE AIRPORT & LANDED UNEVENTFULLY. AFTER GROUND INSPECTIONS WERE PERFORMED WITH NO FINDINGS, THE PILOT DECIDED TO PERFORM A REPOSITION FLIGHT WITH NO PAXS. AS THE ACFT WAS DESCENDING AT THE DESTINATION, THE LT ENG TORQUE STARTED TO FLUCTUATE AGAIN WITH MINOR YAW. THE ENG WAS SHUTDOWN & THE ACFT LANDED UNEVENTFULLY.