As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A HELICOPTER ENGINE PERFORMANCE CHECK AT 2000 FT CRUISE, THE TAIL ROTOR GEARBOX CHIP LIGHT ILLUMINATED AND STAYED LIT. AFTER LANDING AT BASE, THERE WAS METAL FLAKES PRESENT ON CHIP DETECTOR. T/R GEARBOX WAS FLUSHED, CHIP DETECTOR CLEANED, & RE-INSTALLED. AIRCRAFT WAS GROUND RUN FOR 10 MIN AND SHUTDOWN.T/R GEARBOX CHIP DETECTOR REMOVED AGAIN.METAL WAS FOUND ON DETECTOR - T/R GEARBOX REMOVED FROM AIRCRAFT.