What was found
THE PILOT REPORTED THAT SHORTLY AFTER LEVEL OFF, ACFT EXPERIENCED AN ABNORMAL INCREASE IN TORQ ASSOCIATED WITH POWER ADJUSTMENTS FOR CRUISE POWER. INCREASE IN TORQ WAS IN THE 5 MIN POWER RANGE WITH AN IMMEDIATE DECREASE IN TORQ WITHOUT ANY COLLECTIVE MOVEMENT. FOLLOWING TORQ FLUCTUATIONS A DECREASE IN ROTOR RPM WITH A SLIGHT RT YAW WAS OBSERVED. AFTER ONLY A SECOND, POWER WAS RESTORED WITH ILLUMINATION OF BOTH MASTER CAUTION & FADEC DEGRADED LIGHTS. AFTER LANDING, PIC CALLED OCC TO REPORT A PRECAUTIONARY LANDING. TROUBLE SHOT THE SYS IAW TASK 73-25-04-113. A BAD TRANSDUCER WAS DETERMINED TO BE THE CAUSE. THIS TRANSDUCER WASR & R. THE ACFT WAS RTS.