As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VOLTAGE REGULATOR FAILED AND OVERVOLTAGE CONDITION DAMAGED AVIONICS. AS VOLTAGE CLIMBED AND CIRCUIT (50A) BREAKER OPENED, AN ARC DEVELOPED WHICH MELTED THE BI-METAL ELEMENT TO .1250 INCH BACK FROM CONTACT CAUSING SMOKE IN COCKPIT. VERY HIGH VOLTAGE IS REQUIRED TO DO THIS TYPE OF DAMAGE. PARTS NOT AVAILABLE UNTIL 9-30-95.