Once cracks are found by inspection, the next steps include making repair decisions and contemplating the risks to other components. Yet the gap between discovering and solving the problem is often complicated by the lack of information about the damage. Whether fatigue cracks, corrosion cracks, manufacturing flaws, creep, graphitization, high temperature hydrogen attack (HTHA), or another damage mode, each requires a different solution—making its diagnosis critical for developing effective solutions. Field replication can be used to nondestructively to identify crack types and damage modes. This talk will demonstrate how field metallography can beused to bridge the gap between inspection finding the problem and diagnosing the crack type needed to develop effective solutions.