As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMEROUS MAGNETO PROBLEMS. UNUSUAL DROP OFF, COMPLETELY DEAD MAG, AND NO HARD STARTING WERE ATTRIBUTED TO CAPACITORS IN THE DUAL MAG SYSTEM. AFTER THE FACT, TCM NOTIFIED AND STATED CAPACITORS CODED PRIOR TO 9946 WERE TO BE PULLED OUT OF SERVICE. REF TCM CSB NR 662A NEWER CODED CAPACITORS WERE INSTALLED AND MAG OPERATION HAS BEEN SATISFACTORY. (X)