What was found
DURING SLAT EXTENSION, SLATS STUCK AT 0 DEGREES. BOTH OVERHEAD SLAT FAULT LIGHTS CAME ON. CYCLED HANDLE AND SLATS STAYED STUCK. DURING TAXI IN CYCLED HANDLE AND SLATS WORKED NORMALLY. BITE TEST OF SFCC 1 SHOWED "MAIN CONT VLV" ON ARRIVAL, SLATS WORKING NORMAL. SFCC 2 SHOWED "JAM". FAULT CLEARED & SLAT SYS FUNCTIONED NORMAL WITH NO FURTHER FAULTS. FOUND LT TORQUE LIMITER TRIPPED. RESET OF TORQUE LIMITER CUTOUT. LT SLAT SCREW JACKS SERVICED IAW AMM 12-13-27. ALL GEAR BOXES OIL FOUND WITHIN LIMITS. PERFORMED GREASING OF LT SCREW JACK BALL NUTS IAW AMM 12-22-27. SLAT SYS FUNCTIONED AGAIN WITH NO FAULTS NOTED. ACFT OK FOR SERVICE.