I've owned an S-2A with a single-piece canopy for about a year. Since purchase the tube on the RH side of the canopy frame has been on its last legs. The forward slot that the plastic dowel rides in has spread open and I've discovered two cracks in the tube pictured below. Is anyone familiar with somebody who is able to repair this by removing the damaged tube and welding in a new one? Or suggestions for making the repair myself? I've called Aviat and aside from selling me a new canopy they didn't have any remedy.