As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IMPULSE HUB ASSY FOUND BROKEN AND CRACKED AT FLYWEIGHT BASE PLATE. DEFECT FOUND DURING "500 HR INSPECTION" OF MAGNETO. MAGNETIC PARTICLE INSPECTION REVEALED CRACKS RADIATING FROM SHARP CORNERED FEATURE OF STAMPED BASE PLATE. CONTACT HAS BEEN MADE WITH MFG ABOUT THIS ISSUE.