As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE STARTS, WE GOT A ELEC LIGHT, STAYED ON. GROUNDED - YES. CW FIM 24-31 TASK 801 BITE CHECK SHOWS BAT CHGR INOP MSG. PULLED AND TAGGED 2 CB'S. REMOVED REPLACED AND TESTED MAIN BATTERY CHARGER REF FIM 24-31 TASK 829 AND AMM 24-31-21-000/400-802-002. REMOVED TAGS AND RESET 2 CB'S. OPERATIONAL TEST AND GROUND VERIFICATION TESTS GOOD.