As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED WITH OVERRIDE SWITCH IN "ARMED" POSITION THE EMERGENCY AISLE LIGHTS FROM DOOR 3 AFT COME ON INTERMITTENTLY. FLIGHT CONTINUED ON AND LANDING WAS UNEVENTFUL. MAINTENANCE FOUND A SHORTED SWITCH, WHICH THEY REPLACED, AND ALSO REMOVED AND REPLACED BATTERY PACK. OPERATIONAL CHECKED GOOD, AND AIRCRAFT RETURNED TO SERVICE.