What was found
AFTER DEPARTING, EXPERIENCED MAIN BATT FAILURE STATUS MESSAGE. DIVERTED TO NEWARK. *S/D* GROUND SERVICE SELECT RELAY FAILED. THIS CAUSED BOTH THE APU AND MAIN BATTERY CHARGER TO FAIL RESULTING IN BATTERY DISCHARGE. RELAY WAS REPLACED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER DEPARTING, EXPERIENCED MAIN BATT FAILURE STATUS MESSAGE. DIVERTED TO NEWARK. *S/D* GROUND SERVICE SELECT RELAY FAILED. THIS CAUSED BOTH THE APU AND MAIN BATTERY CHARGER TO FAIL RESULTING IN BATTERY DISCHARGE. RELAY WAS REPLACED.