But why would you? If it's not authorised, legally, and you can do 1 CH down to 200' then manual land, is that not enough if the RVR is OK. I suspect most of us might pause a little at disconnect time. The a/c will be in trim and a gentle breath on the elevator is all that is required. With the approach ban criteria is anyone suggesting they would commence an approach to autoland outside specified criteria; both RVR and suitable ground aids? Is this discussion not just a academic? Perhaps it can, but can it be used? Rules would have to change. Until then, except in a dire emergency, who s going to try and risk it?