As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FUNCTIONAL CHECK OF THE EMERGENCY LIGHT SYSTEM THE FORWARD LT EMERGENCY LIGHT BATTERY PACK WAS FOUND INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE LT FORWARD EMERGENCY LIGHT BATTERY PACK AT EMERGENCY POWER SUPPLY UNIT (10WL), OPERATIONAL CHECK WAS GOOD.