As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALL LIGHTS ASSOCIATED WITH EMERGENCY BATTERY PACK M1676 ARE INOPERATIVE. UPON INVESTIGATION FOUND ALL LIGHTS ASSOCIATED WITH EMERGENCY BATTERY PACK M1676 ARE TURNING ON PER WDM 33-51-13. FOUND ALL LIGHTS ASSOCIATED WITH EMERGENCY BATTERY PACK M1671 INOPERATIVE IAW WDM 33-51-14. REMOVED & REPLACED BATTERY PACK M1671 AND PERFORMED GOOD EMERGENCY LIGHTS TEST PER AMM 33-51-06-960-805.