As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ROTATING MAGNET FOUND GRINDING AGAINST STATIONARY MAGNET DUE TO MAIN BALLBEARING COMING LOOSE. MAG TOTAL TIME 535.2 HRS. DESIGN OF MAG PROMOTES NON-INSPECTION AT REQUIRED 500-HOUR INTERVALS. SUBMITTER SUGGESTS THE INSPECTIONS SHOULD BE MANDATORY AS THESE MAGNETOS ARE WELL KNOWN FOR PROBLEMS.