As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR PS -1 MAINTENANCE CHECK FOUND THE AFT EMERGENCY LIGHTS INOPERABLE. THE AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 4 BATTERY AND CHARGER ASSEMBLY IAW AMM 33-50-04. THE OPERATIONAL CHECK WAS GOOD IAW W/C 33-70-17. THE AIRCRAFT WAS RETURNED TO SERVICE.