05000333/FIN-2008006-01
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Finding | |
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Title | |
Description | The team identified a Green non-cited violation of technical specification 5.4.1.d for failure to provide adequate procedure directions in Attachment 6 of AOP-28, Operation During Plant Fires, Rev. 18, for operators to restore the RCIC system and secure the A RHR pump from potential fire-induced cable failures. The licensee entered this issue into their corrective action program and implemented procedure changes to provide operators appropriate guidance to address the spurious failures of both RCIC and LPCI A systems in the event of fire in fire zone RB-1C. The finding was more than minor because it affected the procedure quality attribute of the Mitigating Systems cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences (i.e., core damage). Specifically, Entergy had not established adequate procedure guidance to restore the RCIC system and secure the A RHR pump from fire-induced cable failures in the event of a fire in fire zone RB-1C. The team assessed this finding in accordance with NRC IMC 0609, Appendix F, Fire Protection Significance Determination Process. This finding screened to very low safety significance (Green) in Phase 1 of the SDP because it was assigned a low degradation rating. The low degradation rating was assigned based on the teams review of the BWR Owners Group response and walkdowns conducted of procedure AOP-28, Operation During Plant Fires, Rev. 18. The team concluded that, although a spurious start of the A RHR pump with minimum flow condition could occur, an operator would reach the LPCI mode step in the procedure within the maximum expected minimum flow condition evaluated and specified in BWR Owners Group response of thirty minutes. As a result, a low degradation rating was assigned |
Site: | FitzPatrick |
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Report | IR 05000333/2008006 Section 1R05 |
Date counted | Jun 30, 2008 (2008Q2) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | NRC identified |
Inspection Procedure: | IP 71111.05 |
Inspectors (proximate) | M Patel K Young J Tifft J Rogge |
INPO aspect | |
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Finding - FitzPatrick - IR 05000333/2008006 | |||||||||||||||||||||
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Finding List (FitzPatrick) @ 2008Q2
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