What was found
FLT 1401, FLL-AUS, SLAT FAIL AFTER TAKEOFF, RETURN TO FLL. TROUBLESHOT PER FIM 27-81-00-810-807-A. FOUND DEFECTIVE AND REPLACED SLAT SKEW SENSORS, RT 2/3 & RT 3/4 OUTBOARDS PER AMM 27-83-01. CLEARED INHIBITS AND CYCLED FLAPS/SLATS NORMALLY. SLAT FAIL MESSAGE CLEARED. A/C IS OK FOR SERVICE.