Comment by cccbbbaaa

The same thing happens on the 777 and 787: if too much opposite force is applied on both yokes, they lose their linkage and are averaged. There is no warning or priority button, unlike on Airbus planes.

Older Boeing planes also have a mechanism to unlink the controls if too much opposite force is applied. The left yoke would control the left side of the plane, the right yoke would control the right side.

Interestingly, the dual-input rate is roughly the same on Airbus and Boeing planes: 0.44 per 1000 flights and 0.4 per 1000 flights, respectively: https://bea.aero/fileadmin/user_upload/F-GSQJ_finalreport_EN... pages 45 and 47.