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 ROW 12 EMERGENCY EXIT SIGNS INOP. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED NR 3 EPSU BATTERY IAW EMB 145 AMM 33-50-04-000-802-AS AND 33-50-04-400-802-A. NO FIX. REMOVED AND REPLACED NR 3 EPSU BATTERY POWER SUPPLY IAW EMB 145 AMM 33-50-04-000-801-A AND 33-50-04-400-801-A OPERATIONAL CHECK WAS GOOD IAW WC 33-700-17 DID NOT REMOVE SEAT. THE AIRCRAFT WAS RETURNED TO SERVICE.