What was found
(CAN) UPON LANDING, THE ACFT EXITED THE RUNWAY. DURING THE ON GROUND INVESTIGATION, THE ENGINEER AND THE PILOT ON SITE TRIED TO START THE ACFT ENGINES AND THE LT ENGINE ACCELERATED UNCONTROLLABLY CAUSING THE ITT TO FLASH AMBER AND THE TORQUE TO FLASH RED MOMENTARILY. THE START WAS ABORTED INSTANTLY AND BASIC RIGGING CHECKS WAS CARRIED OUT. DURING THE START ATTEMPTS, THE PROPELLERS WERE STILL IN FEATHER. THE FCU WAS REMOVED AND THE DRIVE SHAFT WAS FOUND TO BE IN GOOD CONDITION. IT HAS NOT BEEN CONFIRMED THAT THE "OFF RUNWAY" INCIDENT AND THE UNCONTROLLED ACCELERATION AFTER START ARE RELATED.