Not sure what you are asking CONF?
It comes from an explanatory document on the event, what to look for, what to do etc etc. We have got quite a few busses flying around with conical plates.
It comes from our management of that's what you are asking.
Dozy,
Waiting for the research is all fine. But the fact is that the protections will suddenly put you in a dive if some systems fail. This is not limited to any single system, some events cannot be catered for. But switching off ADR's can only be a temporary measure and would be unnecessary if a simple guarded switch would be installed to kill the protections.
Another fact is that applying unwritten procedures, like switching Off 3 ADR's could lead to other unexpected results in the heat of the moment, such as activating BUSS.
What other undiscovered potential issues exist that can lead to unrecoverable spurious protection activation? What other computer controlling flight surfaces can't be switched off, none I believe? Why can't the protections be switched off.
Sure protections are nice but clearly the technology isn't ready yet for unmanned passenger transport.