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 EMERGENCY LIGHT POWER SUPPLY NR 1 NOT WORKING PROPERLY, HAS MULTIPLE EMERGENCY LIGHTS OUT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 1 EMERGENCY LIGHT POWER SUPPLY AND NR 1 EMERGENCY BATTERY. ALL CHECKS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.