Originally Posted by
sbiddle
How long it's for is going to depend entirely on what the exact reason is for the 787 flights - the two most obvious are increased capacity on WLG-AKL and the other is to give extra hours to 787 crews who have had downtime. There is another possibility which does also tie in with why PPQ was pulled so quickly - and that's a shortage of ATR crews.
It looks like they are using an code two 789 - the IAH 789 doesn't have enough time for an return Tasman trip during NS18, therefore they are running it AKL-IAH-AKL-CHC-AKL-IAH etc.