As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT EXPERIENCED A MAIN ROTOR GEARBOX CHIP LIGHT ENROUTE TO THE AIRPORT. MAINTENANCE EXAMINED THE SYSTEM CHIP DETECTORS AND ELECTRICAL SYSTEM AND FOUND NO CHIP OR ABNOMALIES. AN OPERATIONAL TEST FLIGHT WAS PERFORMED AND FOUND SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.