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 FORWARD CABIN AISLE EMERGENCY LIGHT INOPEARBLE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 1 EMERGENCY POWER SUPPLY AND EMERGENCY LIGHTING BATTERY IAW AMM 33-50-04. THE OPERATIONAL CHECK WAS GOOD. NO DEFECTS NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE.