As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING B INSPECTION, FOUND THE LEFT OVERWING EMERGENCY LIGHT INOPERATIVE. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 4 BATTERY POWER SUPPLY, NR 4 BATTERY, AND LEFT OVERWING EMERGENCY LIGHT IAW AMM 33-50-04 AND AMM 33-50-07. ACFT RETURNED TO SERVICE.