What was found
ON 11/25/08 CREW REPORTED "ENGINE CHIP DETECT R". MAINTENANCE INSPECTED THE CHIP PLUG WITH NO METAL FOUND. ON 12/13/08 CREW REPORTED INTERMITTENT ILLUMINATION OF THE SAME LIGHT. MX REMOVED CHIP DETECTOR AND FILTER WITH NO METAL FINDINGS. ON 02/09/09 THE SAME INDICATION OCCURRED THE CHIP DETECTOR WAS INSPECTED WITH NO DEFECTS NOTED. THE ENGINE WAS REMOVED AND REPLACED WITH A RENTAL UNIT. ENGINE WAS TORN DOWN BY MFG WHO DETERMINED THAT THE NR 2 BEARING AND CAGE SILVER COATING WAS FLAKING OFF. WHILE NON-FERROUS, THE NICKEL BASE COAT CREATED CONTINUITY ON THE DETECTOR AND TRIPPED THE LIGHT. THE ORIGINAL ENGINE IS SCHEDULED TO BE INSTALLED ON THE AIRFRAME 04/20/09.