As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT NR 4 LEADING EDGE FLAPS RIGHT DOES NOT HAVE A GREEN LIGHT ON THE F/E PANEL POSITION TEST, RETURNED TO THE GATE. TROUBLESHOT AND FOUND NR 4 LEADING EDGE FLAP POSITION SWITCH LEVER ARM MISALIGNED. ADJUSTED THE POSITION SWITCH LEVER ARM IAW MM REF 27-82-0, NOW OPERATES NORMALLY.