What was found
(CAN) DURING FLAP EXTENSION ON GROUND EICAS WARNING MESSAGE LE SLAT DISAGREE ON FLAPS LEVER AND THE LEADING EDGE ALTERNATE SWITCH CYCLED AND MESSAGE CLEARED. AFTER TAKE OFF SAME MESSAGE APPEARED AND CLEARED ITSELF AFTER FLAP RETRACTION. FOUND LEADING EDGE AND TRAILING EDGE FLAPS LOCKED OUT. FLAP SLAT ELECTRONICS UNIT REPLACED AND OPERATION CHECKED, DID NOT FIX. HYDRAULIC FLAP AND SLAT SHUT-OFF VALVE MOULE REPLACED AS PER MM TASK 27-51-48-022-001. OPERATION AND LEAK CHECK CARRIED OUT, CHECKED SERVICEABLE.