What was found
(CAN) THE ACFT DEPARTED AND WHEN REACHING 200 FT ENGINE NR 2 SHUTDOWN. THE PILOT COMPLETED A SINGLE ENGINE FIRST PHASE CLIMB AND THEN RE-STARTED ENGINE NR 2 WITHOUT PROBLEMS. AFTER 20 MINUTES OF FLIGHT THE RT ANALOG TORQUE INDICATOR WAS SHOWING ZERO AND REMAINED LIKE THAT FOR 5 MINUTES AND RETURNING TO NORMAL AT THE END OF THIS PERIOD. THE PILOT RESUMED THE FLIGHT TO AIRPORT WHERE A UNEVENTFUL LANDING WAS PERFORMED, BOTH ENGINES IN OPERATION. TROUBLESHOOTING ONGOING.