As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - EMERGENCY LIGHTS AT CEILING AND FLOOR AT LEFT AISLE SEAT ROWS 30 TO AFT OF CABIN INTERMITTENTLY ON AND OFF THROUGH OUT FLIGHT. LANDED LAX WITHOUT INCIDENT. REPLACED BATTERY PACK AND CHARGER AT SEAT 39AB FOR EMERGENCY LIGHTS AT CEILING AND FLOOR AT LEFT AISLE SEAT ROWS 30 TO AFT OF CABIN. SYSTEM GROUND CHECKED NORMAL OPERATION.