Comment by will_asouka

I stand corrected.

Sidestick priority logic — When only one pilot operates the sidestick his demand is sent to the computers. — When the other pilot operates his sidestick in the same or opposite direction both pilots inputs are algebraically added. The addition is limited to single stick maximum deflection. Note : In the event of simultaneous input on both sidesticks (2° deflection off the neutral position in any direction) the two green SIDE STICK PRIORITY lights on the glareshield come on. In addition on A330E, the "DUAL INPUT" voice message activates). A pilot can deactivate the other stick and take full control by pressing and keeping pressed his takeover pushbutton. For latching the priority condition, it is recommended to press the takeover pushbutton for more than 40 seconds. The takeover pushbutton can then be released without losing priority. However, at any time, a deactivated stick can be reactivated by momentarily pressing either takeover pushbutton. If both pilots press their takeover push buttons, the last pilot to press will get the priority. Note : If an autopilot is engaged, the first action on a take over pushbutton will disengage it.