The investigators have the ability to superimpose the CVR data over an accurate map of the aircraft's position, height and heading. They may be able to achieve a better understanding of exactly what was being referred to, being in possession of far more information than is contained in the preliminary report.
Replicating the path of the accident flight with a similarly equipped helicopter and recording the cockpit displays, should reveal any shortcomings in the navigational or radar displays.
I can't help feeling that modern navigation equipment is perhaps too accurate and is capable of luring pilots into a false sense of security. The old hard learned lessons about flying to a position that is known to be offset from a waypoint to a certain extent appear to have been forgotten. Of course there is no need given GPS positioning to a couple of metres, except when that waypoint is a lighthouse above your current altitude. The apparent failure of the navigation system to be able to distinctly highlight the danger presented by Black Rock is inexcusable. The information may have been there on the screen, but it should not have needed to be interpreted in order to appreciate its significance.
Last edited by G0ULI; 4th May 2017 at 11:52.
Reason: Edited last paragraph