What was found
PILOT REPORTED A TAIL ROTOR CHIP LIGHT FLICKER AND THE LIGHT WENT ON SOLID AT LANDING. PILOT CALLED THE MECHANIC WHO INSPECTED THE CHIP DETECTOR AND FOUND A CHIP. MECHANIC THEN DRAINED THE GEAR BOX, SERVICED AND DID A 30 MINUTE GROUND RUN. INSPECTED THE CHIP DETECTOR AND FOUND METAL PARTICLES. THE GEARBOX WAS THEN DRAINED AGAIN AND METAL PARTICLES WERE FOUND IN THE OIL. THE ACFT IS OUT OF SERVICE AND AN O/H GEARBOX AND TOOLS ARE BEING SENT TO REPLACE THIS TAIL ROTOR GEARBOX.