As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF ROLL, THE AIRCRAFT HAD NO BLUE LIGHT ON FORWARD PANEL WITH SLATS EXTENDED. TAKEOFF WAS ABORTED WITHOUT INCIDENT. AIRCRAFT RETURNED TO GATE. PLACARDED LEADING EDGE FLAP INDICATOR INOPERATIVE ON INSTRUMENT PANEL PER MEL. CYCLED FLAPS SEVERAL TIMES. ALL INDICATIONS WERE NORMAL.