As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEVERAL EMERGENCY LIGHTS INOP THROUGH OUT PASSENGER CABIN.<[01] PERFORMED TROUBLESHOOTING FOR EMERGENCY LIGHTS AS PER WDM 33-51-11; AND FOUND EMERGENCY BATTERY PACKS AT POSITION: M2816; M1675; AND M1670 DEFECTIVE.<BR>REMOVED AND REPLACED EMERGENCY BATTERY PACKS AT POSITION: M2816; M1675; AND M1670 PER B737 AMM 33-51-06-960-805.<BR>PERFORMED EMERGENCY LIGHTS - OPERATIONAL TEST PER AMM 33-51-00-710-801. FOUND NORMAL.;[02] VERIFIED STEP # 1.