As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE INSPECTION FOUND BOTH OVERWING EXTERNAL EMERGENCY LIGHTS INOPERABLE. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 4 BATTERY AND CHARGER PER MM 33-50-04. THE OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.