Hi All,
I have a technical question about the B737(NG) stabilizer trim system.
Assuming the two brakes on the stabilizer trim actuator assembly fail (to engage), now the stabilizer is free to backdrive the jackscrew and change its position based on aerodynamic loads, i.e., the stabilizer can float freely between the stops. Is it in such a situation possible to simply grab the trim wheel and hold it in order to prevent a stabilizer trim runaway? Or are the forces way too high to do so (breaking thumbs).
Also, if those brakes fail, is it an option to leave the AP on and let it control the stabilizer by means of the electric stabilizer actuator system? I guess this would lead to a continuous trim input from the AP, which may be prevented by the system.
Thank you
