Original Heat Shroud was inspected and found to be beyond repair. An overhaul was performed on the Exhaust shroud with respect to the original dimensions. Material used was Stainless Steel 321. Welding material used on exhaust Alloy 347 AMS 5680. Heat # 535815. PO # 9386. 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.