As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING B INSPECTION FOUND THE EMERGENCY POWER SUPPLY UNIT NEEDS TO BE REPLACED. THE AIRCRAFT WAS REMOVED FROM SERVICE. REPLACED EMERGENCY BATTERY PACK AND CHARGER REF EMB 140 AMM 33-50-04. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.