05000266/FIN-2017004-01
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Finding | |
|---|---|
| Title | Failure to Implement Required Provisions of NFPA 805 |
| Description | A finding of very low safety significance and associated NCV of Point Beach Nuclear Plant Units 1 and 2, Renewed Operating License Condition 4.F (fire protection) was identified by the inspectors for the licensees failure to either de-energize chemical and volume control system (CVCS) valve 1(2)CV285 or implement applicable compensatory measures. Specifically, the licensees National Fire Protection Association (NFPA) Standard 805 license basis and their fire protection program credited 1(2)CV285 as being de-energized to prevent fire-induced spurious operation from causing a loss of reactor coolant inventory. Immediate corrective actions included opening the 1CV285 circuit breaker on April 12, 2017. The circuit breaker for 2CV285 had been previously opened by the Unit 2 CVCS operations checklist on April 6, 2017.The finding was determined to be more than minor because it was associated with the Initiating Events cornerstone attribute of Protection Against External Factors (Fire) and affected the cornerstone objective of limiting the likelihood of events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. Specifically, by failing to de-energize 1CV285 and 2CV285, both Units 1 and 2 were vulnerable to a fire-induced intersystem loss of coolant accident through their respective excess letdown lines. In accordance with IMC 0609, Significance Determination Process, Attachment 0609.04, Phase 1 - Initial Screening and Characterization of Findings, Table 3b the inspectors determined the finding degraded the fire protection defense-in-depth strategies. Therefore, screening under IMC 0609, Appendix F, Fire Protection Significance Determination Process, was required and directed the inspectors to continue to Significance Determination Process (SDP) Phase 2 Quantitative Screening Approach in IMC 0609, Appendix F. The Regional Senior Reactor Analyst (SRA) performed a detailed risk evaluation, which concluded that the risk was of very low safety significance or Green. This finding has a cross-cutting aspect in the area of human performance, Change Management, because the licensee did not use a systematic process for evaluating and implementing change so that
3 nuclear safety remains the overriding priority. Specifically, the licensee updated their operations checklist to maintain the CV285 valves de-energized, but failed to implement the checklist on the day the station transitioned to their NFPA 805 licensing basis. [H.3] |
| Site: | Point Beach  |
|---|---|
| Report | IR 05000266/2017004 Section 1R05 |
| Date counted | Dec 31, 2017 (2017Q4) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | T Hartman K Barclay G Edwards M Garza J Hanna J Cameron |
| Violation of: | License Condition - Fire Protection |
| CCA | H.3, Change Management |
| INPO aspect | LA.5 |
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Finding - Point Beach - IR 05000266/2017004 | |||||||||||||||||||||||||||||||||||||||
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Finding List (Point Beach) @ 2017Q4
Self-Identified List (Point Beach)
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