As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STATUS MESSAGE FOR THE APU BATTERY CHARGER. TRIED TO RESET THE APU BATTERY CHARGER CIRCUIT BREAKER BUT NO HELP. REMOVED AND REPLACED APU BATTERY IAW AMM 24-31-04, AND REMOVED AND REPLACED THE APU BATTERY CHARGE IAW AMM 24-31-05, TESTED OK.