As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PILOT REPORTED THAT THE SAS NR1 , NR1 INVERTER AND THE NR2 ECU FAILED DURING FLIGHT. THE PILOT MADE A PRECAUTIONARY LANDING AT AIRPORT WITH OUT INCIDENT. AFTER TROUBLESHOOTING THE DISCREPANCY THE MECHANIC FOUND THAT THE EMERGENCY BUS CIRCUIT BREAKER SHORTED OUT WHICH SHORTED OUT THE HSI INDICATOR AND THE K8601 RELAY AFTER REPLACING COMPONENTS OPS CHECK WAS GOOD.