What was found
VAR NR CAUTION ILLUMINATED DURING FLIGHT. VARTOMS KEPT GETTING SPLITS ON ENGINES AND WOULD MAINTAIN THE ROTOR RPM AT 101 REGARDLESS OF AIRSPEED. ABLE TO MAUAL RE-TRIM, HOWEVER; THE SYSTEM WOULD ALMOST IMMEDIATELY SPLIT AGAIN. DURING MTF FOR VARTOMS ISSUE FOUND NO 2 TRIM MOTOR INOP. CONDUCTED TROUBLESHOOTING BY SWAPING CANNON PLUG POSITIONS AND #2 DID NOT MOVE ON EITHER PLUG, CAUSING VARNR LIGHT AND FLI FLUCTUATIONS DURING FLIGHT AND NR TO STAY AT 101 REGARDLESS OF AIRSPEED. REMOVED AND REPLACED ACTUATOR; MTF COMP IAW 05-60-00, 6-1.