What was found
FACTORY REBUILT CONTINENTAL MOTORS INC. MAGNETO FAILED PRIOR TO FIRST FLIGHT. MAGNETO INSTALLED DURING THE ENGINE OVERHAUL. TEST CELL AND GROUND RUNS IN ACFT SATISFACTORY BUT FAILED PRIOR TO THE FIRST FLIGHT. SUSPECT POINTS FAILURE. THIS REPAIR STATION HAS EXPERIENCED 2 PREVIOUS CONFIRMED MAGS WITH FAILED POINTS, BOTH ON CONTINENTAL FACTORY REBUILDS.