What was found
THE AIRCRAFT WAS ON A FLIGHT WHEN A TRANSMISSION CHIP LIGHT OCCURRED, APPROPRIATE ACTION WAS TAKEN. THERE WAS FERROUS METAL FOUND ON THE TRANSMISSION OIL MONITOR AND TRANSMISSION CHIP DETECTORS. THE TRANSMISSION AND MAST WERE REMOVED FOR INVESTIGATION. THE M/R MAST ASSEMBLY WAS DISASSEMBLED, THE INNER RACE OF THE MAST BEARING WAS FOUND TO HAVE SPALLED AND WAS CREATING THE FERROUS METAL. NOTE: THE M/R TRANSMISSION WAS ALSO DISASSEMBLED AND NO DISCREPANCY WAS FOUND FOR THE CHIP LIGHT.