As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL, THE LEADING EDGE INDICATOR WENT AMBER AND TAKEOFF WAS ABORTED AT 30 KNOTS. AIRCRAFT RETURNED TO BLOCKS WITHOUT INCIDENT. BROKEN GROUND WIRE WAS FOUND ON THE NR 8 LEADING EDGE SLAT EXTEND SWITCH. REPAIRED WIRE AND OPERATIONAL CHECK OK.