Just checked mine and all is good. (2007 Airborne XT-912 Tourer). (12/1/2013)
Well it's doesn't need an xray...
Upon closer inspection of a photo from Saturday, and another closer inspection today - I found a crack. (14/1/2013). It wasn't too obvious but it's there.
I spoke to Airborne too, and they were quite reserved and not overly concerned. Well - I found a crack and I don't know what to do next - buy a new one? And then replace it in 5 more years?
My trike has been used for training in the past, and now also for me, so I guess the landing cycles will play a part in this. I haven't had any hard landings.