As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) MAIN ROTOR GEARBOX CHIP DETECTOR LIGHT ACTIVATED IN FLIGHT. PILOT LANDED ON GROUND LIGHT WENT OUT. CHIP DETECTOR REMOVED AT MAINTENANCE FACILITY. FUZZ PARTICULATE FOUND, DETECTOR CLEANED, INSPECTED, REINSTALLED. HELICOPTER GROUND RUN ON GROUND FOR 30 MINUTES WITH NO LIGHT INDICATION. GEARBOX OIL REPLACED AT CUSTOMER REQUEST.