What was found
THE STANDBY/MAIN VOLTAGE REGULATOR SWITCH FAILED INTERNALLY CAUSING THE NOISE FILTERS, PN CM221, TO SHORT AND CATCH ON FIRE. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
THE STANDBY/MAIN VOLTAGE REGULATOR SWITCH FAILED INTERNALLY CAUSING THE NOISE FILTERS, PN CM221, TO SHORT AND CATCH ON FIRE. (X)