In the case of a spill it's most likely the case that something in your top case has been ruined. I had this happen to me on 2008 macbook that was otherwise fin

In the case of a spill it's most likely the case that something in your top case has been ruined. I had this happen to me on 2008 macbook that was otherwise fine. I looked into the used parts market and you can get a fine topcase for $50 and the install if pretty easy if you can use a screw driver. (I'm assuming the MBA is different in this regard, browsing around this seems to be the case) Looking into it further at the time there's actually a good chunk of your macbook that you can fix yourself it's just not officially blessed by Apple