As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON DEPARTURE FROM KPDK, ENG CHIP LIGHT ILLUMINATED ON THE WARNING PANEL. IT WENT OUT AFTER A FEW SECONDS. LANDED AS SOON AS POSSIBLE BACK TO KPDK AND SHUT DOWN ENGINE, CHECKED THE CHIP PLUGS AND THERE WAS NOTHING ON THEM. GROUND RUN THE AIRCRAFT WITH NO LIGHT. RETURNED TO SERVICE.