News is a bit scrappy, as you would expect, various comments/reports are in the Wings Over NZ thread on the show.
http://rnzaf.proboards.com/post/236784/threadQuote:
Re Harvards, yes there were two incidents on Monday morning. Earlier media reports appeared to provide some form of confusion between the two seperate incidents. I did not witness them, but what i can offer is that one scraped a wingtip during an attempted takeoff. I did later see NZ1092 with her starboard wingtip removed and being looked at.
NZ1057 was during landing, not takeoff as has been reported in some media.
This happened the day after the 3-day Warbirds Over Wanaka show.