As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JAN 9, 2001 WHILE ON A SIGHTSEEING FLIGHT, THE PILOT EXPERIENCED AN ENGINE CHIP WARNING. HE MADE A PRECAUTIONARY LANDING. A MECHANIC WAS FLOWN TO THE SCENE AND A SMALL HAIRLIKE SLIVER WAS FOUND ON THE MAGNETIC PLUG. THE CHIP PLUG WAS CLEANED AND THE AIRCRAFT WAS GROUND RUN. LEAK CHECKED WITH NO FURTHER INCIDENT.