What was found
SLAT FAIL INFLIGHT, NO SLATS AT ALL, APPROACH SLAT 0/FLAP 2, FLAPS OPERATED NORMALLY. UPON TROUBLESHOOTING THROUGH CMC, FOUND FAULT CODE 27811013ACE, L WING OUTBD SLAT PANEL SKEW, REMOVED & REPLACED LEFT OUTBOARD SLAT SKEW SENSOR 3/4 IAW EMB 190 AMM 27-83-01 AND PERFORMED OPERATIONAL TEST PER EMB 190 AMM 27-83-01-710-801-A/500. OPS CHECK GOOD AND MESSAGE CLEARED AT THIS TIME. A/C IS OK FOR RETURN TO SERVICE.