PLT OF BK117 HELI EXPERIENCES CHIP DETECTOR WARNING. SHUTS DOWN 1 OF 2 ENGS AND PROCEEDS TO NEAREST SUITABLE ARPT.

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I DEPARTED A RURAL COMMUNITY WITH 2 FLT NURSES AND 1 PATIENT FOR A LCL HOSPITAL. APPROX 15 MINS INTO THE FLT; ENG #2 CHIP LIGHT ILLUMINATED. I ACTIVATED THE CHIP PULSE SWITCH 3 TIMES TO TURN OFF ANY FUZZ ON THE CHIP DETECTOR. STILL; THE CAUTION LIGHT REMAINED ILLUMINATED. I CONSULTED THE CHKLIST AND EXECUTED IT. #2 ENG WAS SECURED AND THE HELI WAS FLOWN TO A LCL ARPT AT 3000 FT. THE LNDG WAS UNEVENTFUL AND THE PATIENT WAS TRANSPORTED BY AMBULANCE TO THE HOSPITAL. AN EMER WAS NOT DECLARED SINCE I DEEMED IT UNNECESSARY. THE FLT AND LNDG WERE CONDUCTED SAFELY WITHOUT CREATING A HAZARD TO ANY PAX; PROPERTY; OR PEOPLE ON THE GND. ZZZ WAS THE CLOSEST ARPT AT THE TIME OF THE INCIDENT. HOWEVER; I WAS REQUIRED TO FLY 5 MI ACROSS OPEN WATER. LIFE VESTS WERE AVAILABLE TO ALL PAX ON BOARD THE HELI. CORRECTIVE ACTION: I FEEL VERY CONFIDENT ABOUT MY DECISIONS; AS IN THE ACTION OF NOT DECLARING AN EMER; AND FLYING OVERWATER ON 1 ENG. THAT IS OF COURSE UNTIL SOMEBODY CONVINCES ME OTHERWISE. I'M ALWAYS OPEN FOR SUGGESTIONS.