A PS to my last comment re the CVR transcript: The two "black boxes" (actually orange), were located at the crash site reasonably quickly. They were taken back to Auckland around a week later and then sent off to the US for transcription. The union, quite rightly, insisted on being represented at the transcription. So a three man team was sent off with the CVR tape. One was a union man. One was a company man. And the other was the senior F/O, who you could call "exec", but maybe he was sent because he knew the voices of the F/Os on the flight. But it doesn't really matter about the 2-1 thing, because they all had to agree - and all agreed that when F/O Brooks said that he didn't like it, he was worried.
It should be noted that F/O Brooks had an excellent reputation amongst pilots.