What was found
LE FLAP TRANSIT LIGHT ON FINAL FLAPS 10 SPEED 190 FLIGHT CREW ADVISED THE FAULT WAS FOR THE #4 LEADING EDGE FLAP. FSEU EXISTING FAULT FLAP LEVER 27-51427. FLIGHT LEG 0 HAD 4 FAUL TS, SAME FLAP LEVER, LE SLAT EXT UCM 27-81354, L LE SL EXT UCM 2 7-81352 AND FSEU FAILED 27-51110. CONFIMED FSEU IS AT FAULT. REPLACED FLAP/SLAT ELECTRONICS UNIT INSTALLATION REFERENCE: TASK 27-51-01-400-801 . ALL TEST PAST. PARTS USED: 29-2751-9-0049, QTY :1 1684775,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1684775 SN OFF 0087 UNIT, FLAP & SL OFF 29-2751-9-0049 0087 ON 29-2751-9-0049 0756