As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OVERNIGHT LINE CHECK, FOUND ESCAPE PATH LIGHTS ON FLOOR INOP BETWEEN ROWS 23 THRU 32. MAINTENANCE REMOVED AND REPLACED 2 BATTERY PACKS AND A TEST SWITCH AT THE FORWARD FLIGHT ATTENDANT PANEL. OPERATIONAL CHECKED GOOD AND AIRCRAFT WAS RETURNED TO SERVICE.