As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PILOT WAS FLYING ON TOUR FLIGHT, NOTICED MAIN GEARBOX CHIP LIGHT ILLUMINATED. PILOT MADE PRECAUTIONARY LANDING. INSPECTED MAIN GEARBOX CHIP PLUG, FOUND A SMALL METAL FLAKE. CLEANED CHIP PLUG AND PERFORMED OPERATIONAL CHECK, FUNCTIONALLY CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. AIRCRAFT TT: 6,706.2 HOURS. (X)