As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
M1673 EMERGENCY EXIT LIGHT BATTERY PACK AT STA 952 WL 290 LBL 13 ALL ASSOCIATED LIGHTS INOP / [01] REMOVED AND REPLACED EMERGENCY EXIT LIGHT BATTERY PACK M1673 WITH SERVICEABLE UNIT AND PERFORMED GOOD INSTALLATION TEST PER AMM 33-51-06-960-805;[02] VERIFIED CORRECTIVE ACTION #1