What should be done if indications are found during MPI?

When indications are found during Magnetic Particle Inspection (MPI), it is crucial to further evaluate and test the area to confirm the nature of the indication. This step is essential because not all indications signify a detrimental defect; they may be benign or a result of surface irregularities. By thoroughly assessing the indication, an inspector can determine whether it is relevant to the integrity and safety of the component being inspected.

Confirming the nature of the indication often involves different techniques, such as closely examining the area with more refined inspection methods or utilizing additional magnetic particle techniques. This careful evaluation helps in making informed decisions on the necessary actions, be it repair, further monitoring, or acceptance of the component.

Ignoring the indications could lead to overlooking critical defects that might compromise the component's structural integrity. Similarly, re-inspecting the entire component or switching to a different type of inspection without addressing the specific indication could result in unnecessary time loss or misdiagnosis of the component's condition. Each of these alternatives fails to address the priority of accurately understanding what the indications represent before proceeding.