Check Airman
A previous poster mentioned that BA doesn't allow the AT to be disconnected. Can anyone confirm that?
Depends on the fleet - it is certainly the case on the 777, I believe that's also the SOP on the Airbus fleet,
Is the AT considered a no-go item?
It is not a no-go item.
Is it an emergency if the AT fails in flight?
No.
Please note that I am not saying whether I am a supporter of the policy...or not...