As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON DEPARTING, THE TRANSMISSION CHIP LIGHT ILLUMINATED. PILOT LANDED & CALLED MAINTENANCE TECHNICIAN. A VERY SMALL SLIVER WAS FOUND ON THE TRANSMISSION TOP PLUG. THE LOWER PLUG WAS CLEAN & THE FREEWHEELING UNIT PLUG WAS CLEAN. CLEANED THE TOP CHIP PLUG & REINSTALLED. PERFORMED GND RUN & RETURNED TO SERVICE.