BENGT LYDELL

The approach is documented in “Base Case Report No. 2.” For systems other than the five Base Case Systems, the base case results established anchor distributions for BWR and PWR Code Class 1 reference piping systems. As an example, the base case results for PWR hot legs were applied to PWR cold legs but adjusted to account for insights about the service conditions and degradation susceptibility specific to cold legs. For the other BWR and PWR piping systems not covered by the base case study, the base case results were adjusted downwards or upwards as appropriate by accounting for unique piping design features (e. g., size, material, and weld population), service conditions and field experience. For non­piping passive components the base case report again was used as the main reference (or source of calibration parameters) in combination with reviews of relevant operating experience. In summary, this Panel Member’s response to the elicitation questions is based on insights from degradation mechanism analyses in combination with reviews and statistical evaluations of operating experience.