What was found
EICAS MSG LE SLAT DISAGREE DISPLAYED. LEADING EDGE LIGHT ILLUM WITH THE FLAP LEVER IN 1, BOTH FLAP POINTERS. FSEU CHECKED, NO FAULT EPSU CHECKED FOUND SENSOR 302. FAULTY TARGET FOUND FULL OF GREASE, CLEANED SYSTEM. OPERATED SEVERAL TIMES, OP`S OK.