What was found
LE FLAPS TRANSIT LIGHT ANNUNCIATED DURING CRUISE. SLAT 1 LIGHT O N OVERHEAD PANEL WILL PERFORMED FSEU BITE PER FIM 27-51 TASK 801. FLIGHT HISTORY LEG 0 SHOWS 27-51105 FSEU FAILED WITH NO OTHER MX MSG. EXISTING FAULTS WILL PASS WITH SLATS IN FULL EXTEND BUT FAILS WITH MSG 27-51105 WITH SLATS IN PARTIAL DOWN WITH NO OTHER MX MSG. FOLLOWED FIM 27-88 TASK 801. FSEU NIS DEN. UPON FARTHER TROUBLESHOOTING PERFORMED PROX SENSOR TEST PER AMM 27-88-11. FOUND WITH SLATS UP S1 INBD SENSOR IS READING FAR WHEN SENSOR SHOULD READ NEAR. NOTE* SENSOR S995 WAS ALREADY REPLACED ON LP 5846166. APPLYING SDR, AIRCRAFT DECLARE LENDING EMERGENCY REMOVED AND REPLACED FCEU REF AMM 27-51-01-400-801 ALL OPS CHECK C/W NO DEFECTS NOTED PARTS USED: 29-2751-9-0024,QTY :1 ROTABLE PARTS CHG:TT # 1471632 SN OFF 1442 PN OFF 29-2751-9-0024 UNIT, FLAP & SL OFF 29-2751-9-0024 1442 ON 29-2751-9-0024 0038 CYCLED POSITION OF SLAT SYSTEM WITH NO FAILURES. INSPECTED TARGET OF S1 S995 NO DEFECTS NOTED. PERFRORMED SENSOR TEST 27-88-11 S995 PASSED ALL CHECKS