As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 19-22 OF THE CABIN AND IN THE TAIL COMPARTMENT WERE INOPERATIVE. MAINTENANCE REPLACED THE BATTERIES IN THE BATTERY PACK AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION. (A)