MDT COMMUTER FLC OVERTAKE AND PASS A CESSNA CARAVAN ON DOWNWIND LEG AT A NON CTLED ARPT RESULTING IN CUTTING IN FRONT OF THE C208 DURING BASE TO FINAL. THE C208 REGISTERED A COMPLAINT WITH CTR.

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I WAS THE PIC OF A FLT TO KAPALUA. CTR CLRED US FOR VISUAL AND TOLD US TO FOLLOW C208 CARAVAN. THEN; WE WERE SWITCHED TO UNICOM FREQ. UPON CONTACTING UNICOM; WE WERE ADVISED TO OVERTAKE THE CARAVAN WHICH WAS A SLOWER ACFT. MY FO AND I UNDERSTOOD THE SAME EXACT THING THAT WAS TO OVERTAKE THIS CARAVAN. THUS; I DECIDED IT WAS REASONABLE AND SAFE FOR US TO OVERTAKE THIS ACFT. THE CARAVAN WAS IN CONTACT WITH UNICOM BEFORE US; THEREFORE; WE BELIEVED THAT THEY COMMUNICATED WITH EACH OTHER TO LET US OVERTAKE AS A COURTESY GESTURE. SAFETY WAS NOT JEOPARDIZED IN ANYWAY; AT ANYTIME; WHEN WE OVERTOOK THE CARAVAN WELL CLRED ON THE R SIDE. WHEN WE WERE TURNING FROM BASE TO FINAL; THE CARAVAN WAS APPROX 3 MI BEHIND US. HOWEVER; THE CARAVAN PLT DECIDED TO TAKE A 360 DEG TURN BECAUSE HE FELT HE WAS GETTING TOO CLOSE TO OUR ACFT; ACCORDING TO HIS JUDGEMENT. AFTER WE LANDED AND PARKED THE ACFT; I RECEIVED A MESSAGE FROM CTR STATING THAT THE CARAVAN PLT HAS MADE A COMPLAINT AGAINST US FOR NOT FOLLOWING BEHIND HIM TO THE ARPT. I WAS SURPRISED BY HIS COMPLAINT BECAUSE WE THOUGHT THE OVERTAKE WAS A COURTESY GESTURE FROM HIM. THEREFORE; I AM RPTING THIS CONFLICT IN A GOOD MERIT TO AVOID FURTHER MISUNDERSTANDING AND MISCOM BTWN PLTS AND UNICOM.