What was found
ENGINE CHIP LIGHT CAME ON IN FLIGHT, PILOTS REFERENCED EMERGENCY CHECKLIST AND IT INSTRUCTED THEM TO MONITOR ENGINE TEMP AND OIL PRESSURE AND TO LAND AS SOON AS PRACTICAL. INSPECTED CHIP DETECTOR AND FOUND A SINGLE METALLIC SLIVER, ALSO MAIN OIL FILTER BUTTON WAS POPPED. REF MM. REMOVED AND REPLACED OIL FILTER AND PERFORMED AN ENGINE GROUND RUN. REINSPECTED OIL FILTER AND FOUND MORE PARTICLES ON FILTER. ENGINE WAS DETERMINED TO UNSERVICEABLE. ENGINE WAS CHANGED AND AC RETURNED TO SERVICE. HAVE NOT YET DETERMINED THE SOURCE THE METAL SLIVER. (2003-001)