As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS OPERATIONAL CHECK EMERGENCY LIGHTS OPERATIONAL CHECK - EMERGENCY LIGHTS INOP FROM ROW 22ABC TO THE AFT OF A/C. REMOVED AND REPLACED BATTERY PACK FROM POWER SUPPLY AT LOCATION M1670 IN REF W AMM 33-51-06-960-805 OPS CHECK GOOD.