Actually, no I don't think there is for steering. Apologies.
Originally Posted by
sonicbum
The "dual input" is a big no-no and must not be used, in any circumstance. In Your scenario, if your trainer added his input to yours on the NWS on an A330 in a poorly lit taxiway, that would have been the perfect recipe for wheels on the grass.
In normal ops, I agree; it should be a very rare occurrence. But in my case the TRE would have steered back towards the correct centreline, arithmetically neutralising my input and taking us away from the wrong line or the grass - while simultaneously saying "I have control", or GENTLY applying the brakes. (we weren't heading for the grass by the way
)
My point is that by fearing "Dual Input" even for a second, more drastic intervention is the only course of action left.