Surely a multistory wind turbine that can be removed only by detonating several bombs at a cost topping a half million dollars qualifies as a lienable property improvement, does it not?Not if the turbine is a “trade fixture” that remains its manufacturer’s personal property.That’s the essential holding from AUI Construction Group LLC v\ Vaessen, 2016 IL App (2d) 160009, a recent 2nd District Appellate Court case that examines issues including the property improvement-versus-trade fixture dichotomy …