What was found
CLIMBING THROUGH 39,000 FT WHILE DOING A LEFT TURN. WHEN WINGS ARE RETURNING TO LEVEL THERE IS A BIND IN THE CONTROLS AND THEN A RELEASE. ONLY HAPPENS WITH AUTOPILOT ON AND TURNING LEFT. REMOVED SUSPECT FAILED ROLL SERVO GEARBOX PN: 011-02214-10 SN:2Q7008852 AND INSTALLED CUSTOMER SUPPLIED REPAIRED ROLL SERVO GEARBOX PN: 011-02214-10 SN: 2Q7008968. WORK DONE IAW AMM / 22-10-10. REMOVED SUSPECT FAILED ROLL SERVO ACTUATOR PN: 011-02213-10 SN: 21009920 AND INSTALLED CUSTOMER SUPPLIED REPAIRED ROLL SERVO ACTUATOR PN: 011-02213-10 SN: 2JL007740. WORK DONE IAW CE 680A AMM 22-10-05 PERFORMED CABLE TENSION CHECKS AND FOUND CABLE TENSION ON ROLL SERVO TO BE AT 10 LBS. ADJUSTED CABLE TENSION TO 40 LBS PER CE 680A AMM 22-10-12. OPS CHECK GOOD NO FURTHER DEFECTS NOTED.