A major fire incident in a gas turbine was traced to the improperly welded tubes in the natural gas regeneration coil section of the GT. Improper welding has given rise to many process incidents and it is important for you to have an adequately staffed inspection team to ensure proper welding procedures are followed and inspection is carried out. However, in many organisations, I observe an erosion of inspection capability as senior experienced personnel retire and are not replaced either due to lack of personnel or lack of experience. This is a recipe for disaster.
Read about the GT fire incident in this link.
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