ORIGINAL: muzzlemaggot
I'd still call 'em up and see what they could/couldn't do for you. Carb screws backing out on their own are pretty uncommon. You'd be surprised at what a little legitimate complaining can accomplish.
There is nothing legitimate about it. That's like trying to get them to replace a plane because it crashed when the batteries weren't charged. Screws and bolts loosening on a new plane is VERY common and it something that needs be checked on the plane. Especially on a new motor. As I said above, all the bolts and screws on a motor need to be checked, the do loosen up as the motor breaks in. IMHO to ask Tower to replace the plane in this instance isn't right. It wasn't their fault that it happened.
Ken