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 EMERGENCY LIGHT BATTERIES TO BE DEAD. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 1, 2, 3 & 4 EMERGENCY LIGHT BATTERY PACKS PER AMM 33-51-17. BATTERY PACK PART NUMBERS: 82284, 105203, 10181, 68861. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.