As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF LEADING EDGE SLAT ASYMMETRY EICAS FLAP INDICATOR STUCK BETWEEN UP AND 1. TROUBLESHOT IAW FIM 27-81 FAULT TREE 809. FOUND INBOARD LEADING EDGE PROXIMITY SWITCH FAULTY. REMOVED AND REPLACED NR 4 INBOARD LEADING EDGE PROXIMITY SWITCH IAW AMM 27-88-01. ALL CHECKS GOOD IAW AMM 27-88-01.