As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN THE CONTACT HSG WAS OPENED, IT WAS DISCOVERED THAT THE RETARD LEAD HAD COME INTO CONTACT WITH COIL PRIMARY WIRE PUSH CONNECTOR, CHAFED AND SHORTED. THE MAIN POINTS WERE ALSO FOUND BURNED AWAY ON ONE SIDE. THE MAGNETO WAS OVERHAULED BUT WAS UNABLE TO BE RETURNED TO SERVICE, IT REPEATEDLY FAILED BENCH TESTS. MAGNETO IS B.E.R.