Hooray! Somebdy spoke on 9032kHz - I just listened to the recording that ran from 0400 to 1000 local time so that was 1500UTC to 2100UTC - Ice 285 called MAC centre twice but I heard no reply and there was no further communication after that. I suspect he was southbound at that time of day - they used to leave Christchurch in the wee small hours and the returning aircraft arrived about 1600 local.
I'll have to work out how I can record 8867 on one track and 9032kHz on the other.... "Scanrec" is a clever little programme!