As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE BASE VISIT FOUND THE EMERGENCY EXIT SIGN ON THE LOWER SIDE OF THE SERVICE DOOR DOES NOT ILLUMINATE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE BATTERY PACK WITH CHARGER IAW EMB-145 AMM 33-50-04, REMOVED AND REPLACED THE NR 2 INVERTER IAW AMM 33-50-11. THE OPERATIONAL CHECK WAS GOOD.