As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST AFTER IGN OVER-RIDE WAS SELECTED ARCING OCCURRED IN AREA OF IGN SWITCH. COCKPIT HAD SMOKE. DIVERTED TO LIT. CONTRACT MTC REPORTS IGN C/BERS ARE TRIPPED AND IGN SW TERMINALS ARE BURNT ALONG WITH 2 FUEL HETA SWITCHES AND THE DC STREAT PUMP SW ALL DAMAGED WHEN WIRING TOUCHED SWITCHES. REPLACED AFFECTED SWITCHES AND REPAIRED WIRING AS NECESSARY.