As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PILOT IN COMMAND REPORTED THE NR 2 INVERTER CIRCUIT BREAKER POPPED. ON INVESTIGATION, THE NR 2 INVERTER AND ASSOCIATED RELAY WIRING SHOWED SIGNS OF OVERHEATING. THE WIRING FOR THE RELAY OVERHEATED TO THE POINT THAT ONE OF THE WIRES SEPARATED FROM THE POLE OF THE RELAY.