What was found
AFTER NORMAL CONFIGURATION FOR LANDING, NR 3 SLAT IN TRANSIENT LIGHT ILLUMINATED OVERHEAD & AMBER LIGHT AT FLAP POSITION IND. R & R NR 3 SLAT OTBD POSITION SENSOR IAW AMM 27-88-11 OPS CHECK GOOD. PERFORMED DVI OF PROX SENSOR & WIRING NO ISSUES IAW IFIM 27-81-00-810-810. ADJUSTED CLEARANCE OF PROX SWITCH IAW AMM 27-88-11. PERFORMED FSEU BITE IAW AMM 27-51-00. FOUND NO ACTIVE FAULT. PERFORMED LE FLAP & SLAT PROX. SENSOR TEST IAW AMM 27-88-11 TEST GOOD. PERFORMED BITE CHECK ON FSEU FOUND FAULT MESSAGE 27-81204 PERFORNED FIM TASK 27-81-00-810-810. REPLACED LEADING EDGE SLAT SENSOR S998 OPS CK GOOD AS PER AMM 27-88-11.