What was found
BATTERY DISCHARGE LIGHT ILLUMINATED FOR GREATER THAN ONE MINUTE. DID NOT EXTINGUISH WITH GROUND POWER APPLIED. ACFT GROUNDED. REMOVED AND REPLACED THE MAIN BATTERY CHARGER IAW AMM 24-31-21 OPS CHECKED NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BATTERY DISCHARGE LIGHT ILLUMINATED FOR GREATER THAN ONE MINUTE. DID NOT EXTINGUISH WITH GROUND POWER APPLIED. ACFT GROUNDED. REMOVED AND REPLACED THE MAIN BATTERY CHARGER IAW AMM 24-31-21 OPS CHECKED NORMAL.