As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN CRUISE PILOTS LOST THE LEFT ELECTRICAL BUS, THE PILOT ELECTED TO DECLARE AN EMERGENCY AND MADE AN UNEVENTFUL LANDING AT THE DESTINATION AIRPORT. MAINTENANCE FOUND THE A RELAY 71PC HAD FAILED AND CAUSED THE LEFT ELECTRICAL BUS TO FALL OFF LINE. RELAY WAS REPLACED FUNCTIONAL TEST WAS OK AND AIRCRAFT WAS RETURNED TO SERVICE.