As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L 2 OVERHEAD LIGHT INOP -SPT- 6482785 TROUBLESHOOT AND FOUND BATTERY PACK M1672 INOP. IAW B737-800 WDM 33-51-14. REMOVED AND REPLACED BATTERY PACK AT STA 952 WL 290 RBL 14 AND OPS CHECK GOOD IAW B737-800 AMM 33-51-06. SSFR REPORT, FORM 46-0024 ENTERED BY UAL INSPECTION U075598 2/18/2020