In my book, that's a pass, but you should have a discussion where you walk through the code and ask the interviewee what happens when i is 15, and hopefully they'll spot the problem, maybe with a little bit of nudging.

But the main point of Fizzbuzz is that some people who call themselves programmers are incapable of producing a loop, some conditionals, and some print statements. Your solution had that, which is why you passed it. The point is to find the people who can't even get that part right.