As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALL EMERGENCY EXIT LIGHTS CONNECTED TO BATTERY PACK M1673 ARE INOP. / [01] REMOVED AND REPLACED BATTERY PACK M1673 AND TEST GOOD IAW AMM 33-51-06-960-805.;[02] CERTIFIED REMOVED AND REPLACED BATTERY PACK M1673 AND PERFORMED GOOD INSTALL TEST AS PER AMM 33-51-06-960-805;[03] VERIFIED CORRECTIVE ACTIONS STEP 1.