As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT EMERGENCY LIGHT BATTERY PACK POSITION M1669 INOP. / [01] REMOVED AND REPLACED EMERGENCY LIGHTS BATTERY PACK AT L/H POSITION M1669 AS PER REFERENCE B737 AMM TASK 33-51-06-960-805; INSTALLATION TEST FOUND NORMAL. BATTERY PACK P/N D717-01-100SWA & S/N 53914.; [02] INSPECTION COMPLETED