What was found
PDIS 773 27-80 4178 16JUL19 BUF OPEN U LOGPAGES:2977364 AFTER TAKEOFF WHEN CLIMBING OUT FLAPS INDCATORS STOPPED BETWEEN 1 AND THE UP POSITION, WITH FLAP HANDLE IN UP POSITION. NO EICAS INDICATIONS. PUT FLAP HANDLE TO 1 AND LE SLAT DISAGREE EICAS ILLUMINATED. COMPLIED WITH QRH AND RETURNED TO AIRPORT. ALSO HAS FLAP/SLAT ELE STATUS MESSAGE. ACCOMPLISHED TECH TIP 18-0044 AND FIM 27-81-00-815 F/T 803 FIG 104. #1 FSEU BITE DISPLAYED A LEFT SLAT XMT FAULT AND # 2 FSEU BITE DISPLACED SLAT SYSTEM FAULT BALL. RESOLVER INPUTS FOR THE SLATS AND FLAPS ON THE THE LEFT AND RIGHT SIDE DISPLAYED WITHIN IN LIMITS. SLAT PDU TORQUE LIMITERS WERE NOT TRIPPED. REMOVED AND REPLACED LEFT SIDE SLAT POSITION TRANSMITTER PER AMM 27-88-01-4. ACCOMPLISHED OPS CK OF THE SLATS AND FLAPS WITH THE HYDRAULIC SYSTEM AND WITH THE ELECTRIC SYSTEM. NO FAULTS OR WARNINGS NOTED. OK FOR SERVICE.