As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PDC, FOUND EMERGENCY LIGHTS FAILED TEST. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK. NO HELP DEFERRED PER MEL 33-50-4. PLACARD INSTALLED. AFTER BATTERY CHARGING COMPLETE, EMERGENCY LIGHTS OPERATIONAL CHECK GOOD PER AMM 33-50-00.