As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVD BENDIX MAGNETO AS A FACTORY OVERHAULED UNIT FROM TELEDYNE CONTINENTAL. INSTALLED MAG, RAMP TEST GROUND RUN OK. AIRCRAFT FLEW FOR 45 MINUTES AND HAD COMPLETE ENGINE FAILURE DUE TO MAG FAILURE. FOUND BOTH BREAKER POINTS NOT GROUNDING TO MAG CASE. RECOMMEND TELEDYNE REVIEW OVERHAUL PROCEDURES AND POINTS MOUNTING METHODS.