Really? Another one of what? Need to be a bit more specific.

Let's see. It's already been suggested that he get an aileron so that can't be it.

Torque rod? Nah, that can't be it. Thats built into the wing and he'd probably destroy the wing truing to change that.

The whole wing? Now that would be silly to expect Hobbico (or whoever) to replace all that because he failed to check the part before installing it. Yes, yes I know it should have been straight in the first place but the assembler has to accept SOME responsibility IMO.