Appears to have last landed in Mel early morning on the 15th. 4 1/2 days seems to be a long time for a piece of machinery like this sitting around. We are aware it at least has massive TCAS issues with every component replaced and unable to fix. That may be the reason it is on the deck but the issues with a heavy landing are still circulating. It could almost kill the 787 if true so the security and secrecy over the matter would be a high priority.