Original Carburetor heat shroud was cleaned and inspected and found to be beyond repair. Main body was replaced with a jig to ensure correct positioning and dimensions of the Carburetor Heat Shroud. Welding material used on exhaust Alloy 347 AMS 5680 Heat # 535815. PO#9408. The repair method and techniques as well as all materials utilized in the performance of such repair are in accordance and approved under AC 43.13-1b.