As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE PERFORMING 100 HOUR INSPECTION, IT WAS FOUND THAT 2 BRUSH ASSEMBLIES HAD SHEARED THE RIVETS ATTACHING THE SPRING BRACKETS. HOWEVER, THE SPRINGS HELD THE BRACKETS IN PLACE, BUT COULD HAVE VIBRATED OUT POSSIBLY CAUSING SEVERE DAMAGE IN-FLIGHT. BRUSHES REPLACED.