As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEVERAL EMERGENCY LIGHTS INOPERATIVE THROUGHOUT THE PASSENGER CABIN.<[01] PERFORMED TROUBLESHOOTING EMERGENCY LIGHTS AS PER REF FIM 33-50 TASK 801 AND USED THE APPLICABLE WDM 35-51-11 AND 33-51-14. REPLACED POWER SUPPLY - BATTERY PACKS AT POSITIONS M2816; M1675 AND M1673 AND PERFORMED INSTALLATION TEST AS PER REF AMM 33-51-06-960-805. TEST FOUND NORMAL.;[02] VERIFIED STEP 1