As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT EXPERIENCE AN ENGINE CHIP LIGHT. PERFORMED AN UNSCEDULED LANDING. MX FOUND A 1MM SLIVER ON THE LOWER ENGINE CHIP DETECTOR. A 30 MINUTE GROUND PENALTY RUN WAS PERFORMED, THE PLUGS WERE CHECKED AND FOUND CLEAN. THE ACFT WAS RETURNED TO SERVICE.