While this isn't really an answer, I came across this post while looking for information about hard drives dying on MacBook Airs. We've had an inordinate number of hard drives die on our mid 2012 MBAs. We ordered 94 of them in July of 2012 and so far, in 15 months, 7 of the hard drives have died. Anyway, just wanted to see if anyone else is seeing a high rate of failure on these drives.