As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) VOLTAGE REGULATOR A WIRE SHORTED TO GROUND. THE 60 AMP ALTERNATOR CIRCUIT BREAKER SMOKED BUT DID NOT TRIP. THE MANUFACTURING DATE ON THE CIRCUIT BREAKER WAS FEB, 1972. THE CIRCUIT BREAKER WAS REPLACED WITH ONE SUPPLIED IN A CESSNA SERVICE KIT. INTERNAL EXAMINATION SHOWED HEAVY CONTACT MELTING WHILE STILL EXHIBITING CONTINUITY.