As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)METAL ON THE RGB CHIP DETECTOR. #18 BEARING BALLS SPALLED. ELECTRICAL PITTING FOUND ON #15 AND #19 BEARINGS ON IDLER DRIVE, THEREFORE THE SPALLING ON THE #18 BEARING IS LIKELY DUE TO ELECTRICAL DISCHA RGE FROM AN EXTERNAL AIRCRAFT SOURCE.