What was found
DURING T/O FELT LT TURNING TENDENCY THAT INCREASED WITH SPEED. (AFTER CLEAN UP). AP WOULD NOT HOLD LEVEL FLIGHT AND HAD APP 5 DEGREES (UNITS OF AILERON RUDDER TO HAVE CONTROL OF AC. RETURN TO DEPARTURE DUE TO MALFUNCTION. FOUND LT SPOILER MIXER 2-3 BUNGEE BROKEN. R & R CAM FOLLOWER SPRING ON 2 & 3 SPOILER LATERAL CONTROL MIXER IAW STANDARD MX PRACTICES. PERFORMED A LATERAL FLIGHT CONTROL FUNCTION/SYMMETRY CHECK IAW AMM 27-60-00-5 STEP 3D48 A-E; FOUND LATERALS FUNCTION NORMAL IN CLEAN WING AND TAKEOFF CONFIGURATION.