Although ILI technology is advancing by leaps and bounds, smart pigs are still not the magic cure-all for all piping inspection needs. An integrated approach needs to be developed to address the shortcomings of ILI or any other single assessment method. We will review a case incident where we wished our 20 – 20 hindsight had been included in our foresight. The case involves the rupture of a propylene pipeline at about 85% of MAOP. ILI technology had been used to inspect the line just 15 months prior to the rupture and no anomaly was indicated at the rupture point.

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