What was found
ELEC LIGHT ILLUMINATED. ACFT GROUNDED. PERF ELEC LT MSG BITE PROC REF FIM 24-31-TASK 801 FOUND MAIT MSG FOR BATT CHG INOP. ABLE TO RESET MSG. PERF FIM 24-31 TASK 825 MAIT MSG CLEARED., VEFIRIED TWO GREEN LTS ON AUX BATT CHGR. FAULT DETERMINED TO BE INT GRND VERIFICATION SUCCESSFUL REF FIM 24-31-TASK 825. PRIOR TO NEXT FLIGHT, ELEC LT ILLUM. PERFORMED BITE ELEC LT REF AMM 24-31-TASK 801 FOUND AUX BATT CHARGER INOP FAULT MSG. R & R THE AUX BATT CHARGER REF MM 24-31-31. RAN ELEC LT MSG BITE TEST REF FIM 24-31 TASK 801. VERIFIED NO FAULT LOGGED, OPS CK OK.