What was found
AILERONS, WHEN TURNING RIGHT REQUIRES STRAINED PRESSURE AND SOME RESISTANCE SPEEDS ABOVE 200 KTS VERY NOTICEABLE. AILERON CABLE RUN INSPECTION, TENSION, AND RIGGING. FUNCTIONAL TEST OF ROLL SPOILERS AND TIGHTENING OF LEAKING B-NUT ON THE RT OTBD SPOILER. TEST FLIGHT FAILED. YAW DAMPER NOT CENTERED AND YAW DAMPER DISENGAGED MESSAGE DURING FLIGHT, DID NOT RESET. REPLACED YAW DAMPER ACTUATOR IAW AMM 22-11-00-710-801, AND ALSO ROLL SERVO MOTOR. RETURNED TO SERVICE.