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 11-13 AND 18-21 OF THE CABIN WERE TOO DIM TO PROVIDE ESCAPE GUIDANCE IF OBSCURED BY SMOKE OR DARKNESS. MAINTENANCE REPLACED THE BATTERY PACK AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.