Unconnected components
I notice in many of the photos of this tragic crash, pipes which appear to be made of copper with compression flanges and joints on the ends. I assume these must be high pressure fuel transfer pipes or engine components, but there are quite a few smaller diameter pipes too. It surprised me to see these at the scene as I would have thought there are other materials that could have been used in the manufacture, unless copper was used because of fatigue reasons. I wonder if any engineers would be kind enough to enlighten me?