As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE INSPECTION FOUND THE AFT EXTERIOR EMERGENCY LIGHTS ON THE LEFT AND RIGHT SIDES INOPERABLE. THE AIRCRAFT WAS REMOVED FROM SERVICE. RE-LAMPED THE LEFT AND RIGHT EXTERIOR EMERGENCY AFT LIGHTS. PART NUMBER 1317. REMOVED AND REPLACED THE NR 4 EMERGENCY BATTERY AND BATTERY POWER SUPPLY IAW EMB AMM 33-50-10. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.