What was found
LE SLAT ASYM ON TAKEOFF OUT OF BOS DEBRIEFED CREW SLATS WILL NOT GO UP FROM 5 TO 1 HYDRAULICS AND ALTERNATE. SLATS WILL NOT RETRACT. PERFORMED FSEU BITE PER FIM 27-51-00. FOUND FAULTS ON FSEU1(-32)-SLAT LOSS, SLAT SYS FAULT FSEU2(-40) SLAT ARM DISAGREE #330. FSEU3(-40)- NO FAULTS. CYCLED FLAPS AND SLATS ON GROUND WITH HYDRAULICS THEY OPERATE NORMALLY. WENT FROM 0-35 AND FROM 35-0 ALL CHECKS GOOD. REQUIRES FURTHER T/S DUE TO FAULTS FOUND FSEU BITE T/S PER FIM 27-81-00-815-804, SSM 27-81-05, AND WDM 27-81-31. PERFORMED RESISTANCE/MEG TEST ON SLAT LOSS SENSING SW CIRCUIT TO GROUND. S10339 R OB SLAT LOSS SENSING SWITCH READS LOW RESISTANCE TO GROUND FROM D41396J RECEPTACLE. REF AMM 27-81-41, REMOVED AND REPLACED RIGHT OUTBD LOSS SENSING SWITCH S10339, OPS CKS NORMAL, NO FAULT MESSAGES.