As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) SERVICEABLE TRANSMISSION INSTALLED AND ALTERNATE RUN-IN PROCEDURE CARRIED OUT IAW WITH BELL MM. FILTERS REMOVED AND FOUND CLEAN. TWO TEST FLIGHTS OF 0.3 AND 0.2 CARRIED OUT. DURING SECOND FLIGHT, THE TRANSMISSION CHIP WARNING LIGHT CAME ON AND AIRCRAFT RETURNED TO BASE. EXCESSIVE AMOUNTS OF FERROUS METAL WAS FOUND ON THE CHIP PLUG AND IN THE FILTER. TRANSMISSION RETURNED FOR INVESTIGATION.