I cannot find anything on this on google.

Essentially my ex gf's 2010 macbook air has died.

While looking on ebay there are 2011/2012 MBA system boards available reasonably cheap and the thought crossed my mind if this can be done.

Now from my understanding the MBA chassis has remained the same for the subsequent 3 MBA releases. Even retaining the same LCD screens and ports etc. So the newer System board should fit perfect, just a question of does everything plug in and does it work, or have apple changed the connectors for things like the keyboard, battery etc