As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MGB CHIP LIGHT CAME ON IN FLIGHT. REMOVED CHIP PLUGS FROM THE MGB AND THE MAST FOUND PARTICLES ON THE MGB PLUG LESS THAN LIMITS CALLED OUT IN AEC AS350B3 SPM 20.08.01.601 NOTHING ON THE MAST PLUG. PERFORMED 10 MIN. HOVER AND RECHECKED CHIP PLUGS IAW AEC AS350B3 MWC 05.53.00.608 NO MORE PARTICLES FOUND AND NO RE-OCCURRENCE OF THE CHIP LIGHT.