As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED THE OVER WING EMERGENCY EXIT ISLE LIGHTS COMES ON WITH EMERGENCY LIGHTING SWITCH IN OFF POSITION, AND LIGHTS GO OUT WHEN GROUND POWER IS APPLIED. MAINTENANCE REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK UNDER SEAT ROW 11 LT, OPERATIONAL CHECK IS GOOD.