Alright, alright, Jeebus Christ, it was a simple question.
Attrite during OCS, assuming you came straight from Civvieland and the Navy hasn't paid for your schooling: back to Civvieland you go. Thanks for playing, enjoy your new haircut.
Once you're comissioned, you can't be "made" enlisted, no matter what happens to you. Doesn't work like that. Either you'll do some other officer job in the Navy or you'll be sent home.
Attrite from the flight program, pre-wings: if you're comissioned through OCS, and if the Navy hasn't paid for your schooling and you weren't prior enlisted, right now policy is to seperate you, i.e., back to Civvieland. Otherwise, you'll be re-designated to a non-aviation job (SWO, Intel, so on).