Cazalet33 -
They all believed the waypoint was at McMurdo Station, but thought that a route to that point would take them down the Sound with Erebus to the left.
That's the nub of the thing, right there.
It is what was in the heads of the crew which led to disaster.
That mental model had been set up by the airline and to a lesser extent by the CAD. That is why the prime responsibility rests with the airline management and its overseer.
The fact that the crew members were hopelessly inexperienced in the task at hand and their training was woefully inadequate compounds the culpability.
Perfect summation. The will to engage in ceaseless debate is mystifying . ..
. . unless it is human nature to fasten the teeth lock them there fixedly no matter what. Many are the cases of accidents plumbed at great depth about which in the end a whiff of natural justice prevails. For when the accused are unable to say one word in their own defence a point is reached when it as well to emulate the wisdom of Solomon and draw a veil upon irreconcilable dispute.