As it happens John, when I read a thread such as this I have a little look around to see what other articles there are around about the subject. The report I linked to was available since way before the beginning of this thread so I knew about the Westpac cab from the start. I'm surprised that those of us 'over there' didn't!
You say that the Westpac controllers called Kaikoira helicopters, where did you get that information and why do you think they would ask a R44 to do the job that a fully equipped 117 couldn't?
There is actually very little coverage about this considering it happened last year. Is Mr A still suspended?