Thanks Pilot Pete, you arguments demand respect as allways.
Just one or two points, the 404 is a single crew aircraft, the reason two pilots were on board was due to the request from Airtours. Only one of them had to be qualified on type, the commander.
Due to the nature of this failure it must ahve been very difficult to identify the failure in the time available. A bang was heard from the right side of the aircraft with possable fluctuations in power associated with possable water ingestion (mentioned in the report) at the same time there is a gradual loss in power from the left engine. The commander may have shut down the right engine thinking about a return to the airfield, then the problem with the left engine becomes apparent, but the right is already featherd. All this with conflicting yaw indications and the lack of time make this very difficult to recover from.