As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 100-HOUR INPSECTION OF MAGNETO, IMPULSE WAS FOUND TO BE NEAR TOTAL FAILURE. BOTH PAWL PINS WERE LOOSE IN BODY OF IMPULSE WITH ONE NEARLY READY TO PULL FREE. THIS ASSY HAD BEEN INSPECTED 98 HOURS PRIOR AND FOUND TO HAVE NORMAL WEAR.