What was found
AIR TURN BACK, LE SLAT DISAGREE. PERFORMED FSEU BITE PER FIM 27-51 FT 809. FOUND EXISTING FAULT MSG: LVR RVDT 2 MISRIG WITH FAULT CODE 27-51023. ALSO PREVIOUS LEG FAULT 0. FOUND MSG: LE SLATS SEE FIM WITH FAULT CODE: 27-81045. PERFORMED POSITION RVDT #2 (M603) ADJUSTMENT PER AMM 27-51-26-424-020 STEP I.(6). ALSO R & R FSEU AS PRECAUTIONARY PER AMM 27-51-01/401. OPERATED FLAP/SLATS SEVERAL CYCLES - PASSED. NO EICAS MSG DISPLAYED. RE-PERFORMED FSEU BITE AND NO FAULTS FOUND. A/C OK FOR SERVICE.