Very truly yours
desire a regulatory conference. As the Inspection Report cover letter notes, North Atlantic has a view of the event significance that differs from the Special Inspection Team's view. The enclosure provides North Atlantic's assessment of specific assumptions and conclusions and the overall...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
| Published: |
2001
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.382.2885 http://pbadupws.nrc.gov/docs/ML0110/ML011020221.pdf |
| Summary: | desire a regulatory conference. As the Inspection Report cover letter notes, North Atlantic has a view of the event significance that differs from the Special Inspection Team's view. The enclosure provides North Atlantic's assessment of specific assumptions and conclusions and the overall conclusion of the Inspection Report. North Atlantic recognizes that the Regulatory Oversight process contains some uncertainties and has evaluated the Inspection Report to provide insight and perspective based upon our analysis of the data and events. Our conclusion is that emergency diesel generator 1B was operable throughout cycle 7 and until the initiation of the failure during the refueling outage on October 29, 2000. A combination of monthly surveillance runs, oil sample analysis and lubricating oil strainer differential pressure data throughout the operating cycle provide ample assurance that the diesel generator was operable during the cycle. The diesel generator failed following multiple fast starts conducted during the refueling outage and lubricating oil strainer differential pressure data provides uncontroverted evidence regarding the point of failure initiation on October 29, 2000. Our risk evaluation determined that this event was of low significance corresponding to the color |
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