1. Cleaning / inspection incl mpi/dye check (pressure test)

2. Cleaning / inspection incl mpi/dye check

3. Premachining / check by mpi to ensure crack free

4. Preheating / SAW welding

5. Heat treatment

6. Redrilling of all pockets and cooling bores

7. Inconel welding / grinding radius

8. Cnc maching to origianal dimension

9. Final inspection / pressure test (evt class approval