What was found
(CAN) ON DEPARTURE, AIRCRAFT WAS UNABLE TO RETRACT THE LANDING GEAR. THE CREW ELECTED TO RETURN BACK WHERE. AN EMERGENCY WAS NOT DECLARED. MTC CONTROL, THE DUTY PILOT AND CORPORATE SAFETY WERE ADVISED. LANDING GEAR CONTROL LEVER REPLACED AND GEAR SWINGS CARRIED OUT, GROUND CHECKED SERVICEABLE. AMM 32-33-01/401.