As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEVERAL EXTERIOR AND INTERIOR EMERGENCY LIGHTS INOPERATIVE.<[01] PERFORMED TROUBLESHOOTING AND FOUND BATTERY PACKS DEFECTIVE AT POS. M1670 AND M1672 AS PER B737 SSM 33-51-14 & 33-51-13; REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACKS AT POS. M1670 AND M1672 PERFORMED INSTALLATION TEST NORMAL AS PER REF B737 AMM 33-51-06-960-805.;[02] FINAL INSPECTION; VERIFIED STEP #1.