As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELEC LIGHT CAME ON AT TOUCHDOWN. ACCOMP FIM 24 31 TASK 829 BAT CHARGER INOP MSG ON P5 13 MODULE. REPLACED BATT CHARGER M5 REF MM 24 31 21. FAILED OPS CHECK. FOUND EVIDENCE OF OVERCHARGING ON MAIN BATT. VERIFIED WIRING IS GOOD REPLACED MAIN BATTERY REF MM 24 31 11. BATTERY AND CHARGER INSTALLED TESTS NORMAL REF MM 24 31 11 AND MM 24 31 21.