Hi, thanks for your answer, yes the a/c is manually flown as double ADR failure, with no sidestick input. Well, it is not always 0.5 deg/min sometimes it will be faster, and when you plot the yaw history it looks really like a deviation and not an oscillatory behavior. With ADRs back to normal it starts oscillating around the newly reached back angle (which makes sense as the a/c will be kept in the desired bank angle less than 33 deg with no side stick input).