As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ENROUTE THE NR 2 ENGINE REDUCTION GEARBOX CHIP LIGHT ILLUMINATED. PRECAUTIONARY SHUTDOWN ACCOMPLISHED. MAINTENANCE FOUND A SMALL METALLIC SLIVER ON SIDE MAGNETIC PLUG. MAINTENANCE CLEANED AND REINSTALLED PLUGS, GOUND RUN CARRIED OUT BEFORE RETURN TO SERVICE.