What was found
AFTER TAKEOFF, ON CLIMB UP THE SLATS MSG, LE SLAT DISAGREE, RAN QRH & RETURNED, FLAPS 20 ON LANDING. PERFORMED FIM TASK 27-81-00-815-807, FSEU BITE ON BOTH 1 & 2 FSEU`S NOTED MSGS 310 & 331. COMPLIED WITH FIM TASK 27-81-00 101 FIG 104 BLOCK 2 WHICH OPERATES THE SLATS THROUGH SEVERAL CYCLES, TEST PASSED. R & R NR 1 FSEU AS PRECAUTIONARY IAW AMM 27-51-01. TEST PASSED IAW AMM 27-51-01-722. ALSO, PERFORMED OW LANDING INSPECTION, NO DEFECTS NOTED, SEE LOG PAGE 8307554.