I asked for the part back too. they would not give it to me. I have repaired many of these ribbon type conductors in aircraft applications and believe I could do these too. There is nothing special about these in our sols where the break occurs. That particular spot is just a conductor.
For further clarity, the conductor is actually frangible conductive paint glued and sandwiched between the two layers of mylar-like material. As soon as you try to open up the outer layers, the conductive paint trace just falls - or gets pulled - apart.Repairs have been tried, here and by a couple of European owners, without success. It is an ultra-thin circuit trace on a very thin substrate, with a relatively thick coating. I may end up with a failed sensor. If I do, are you interested in having it?