As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF ROLL, AFTER FLAP RETRACTION THE NR 4 LEADING EDGE DEVICE INDICATED IN TRANSIT. NO ROLL WAS NOTED, THE AIRCARFT CONTINUED FLIGHT. CLEANED THE NR 4 LEADING EDGE FLAP SWITCH. RAN FLAPS SYSTEM OPS CHECKED NORMAL, THE AIRCRAFT WAS RETURNED TO SERVICE. (M)