Thanks for that. It is worth pointing out that the 'Alpha Floor' function I discussed in a previous post will work regardless of the position of the thrust levers or whether or not the autothrust is armed. The only thing that can prevent it from working is if the autothrust is disabled or unserviceable in some way. To actually disable it would require pulling of CBs which is clearly very unwise! If, however, someone is desparate to crash then there is ultimately nothing anyone can do to stop them!