What was found
PDIS 173 27-80 0984 07MAY20 LAX FACT U LOGPAGES:3195391 LE SLAT DISAGREE SHGN 07MAY20 05:15 LAX U ACCOMPLISHED A BITE CHECK OF THE FLAP/SLAT SYSTEM ELECTRONICS UNIT PER FIM 27-51-00 WITH NO FAULTS NOTED. PERFORMED LEADING EDGE SLAT SENSOR SWITCH OPERATIONAL TEST PER M/M 27-88-00-5 AND A PROXEMITY SENSOR TARGET TEST PER FIM 32-09-804 ALL CHECKS PASSED AT THIS TIME. CYCLED SLATS AND FLAPS SEVERAL TIMES AND ALL INDICATIONS ARE GOOD. FACT 07MAY20 09:19 LAX U PER MOCC REQUEST REMOVED AND REPLACED FSEU. REF AMM 27-51-01-4 OPS CHECK GOOD NO FAULTS NOTED ALL POSITION TRANSMITTERS CHECK GOOD REF AMM 27-51-45-2. PERFORMED GVI ON FLAPS AND SLATS AT ALL SETTING'S WITH NO DISCREPANCY'S NOTED. A/C OK FOR SERVICE.