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 RIGHT FORWARD EXTERIOR EMERGENCY LIGHT AND NR 2 CABIN CEILING EMERGENCY LIGHT WOULD NOT ILLUMINATE. THE AIRCRAFT WAS REMOVED FROM SERVICE. INSTALLED SERVICEABLE BATTERY/ CHARGER ASSEMBLY AND OPERATION CHECKED GOOD IAW EMBRAER AMM 33-50-04. THE AIRCRAFT WAS RETURNED TO SERVICE.