05000298/FIN-2012003-08
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Finding | |
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Title | Non-conservative Service Water Booster Pump A and D Differential Pressure Operability Limits During In-Service Surveillance Testing |
Description | The inspectors identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion XI, Test Controls, for the licensees non-conservative service water booster pump A and D differential pressure operability limits. The licensee entered this deficiency into their corrective action program for resolution as Condition Report CR-CNS-2012-02497 and CR-CNS-2012-02500. The licensees nonconservative service water booster pump A and D differential pressure operability limits was a performance deficiency. The performance deficiency was determined to be more than minor because it was associated with the procedural quality attribute of the Mitigating Systems Cornerstone, and affected the associated cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences, and is therefore a finding. Specifically, the pump differential pressure operability limit for service water booster pump A and D was not correctly stated in the In-service Testing program so that the pumps would meet their 30 day mission time for a design basis accident with a degrading pump differential pressure. The inspectors evaluated the finding using Inspection Manual Chapter 0609.04, Phase 1 Initial Screening and Characterization of Findings. The inspectors determined that the finding is of very low safety significance (Green) because the finding: (1) was not a design or qualification issue confirmed not to result in a loss of operability or functionality; (2) did not represent an actual loss of safety function of system or train; (3) did not result in the loss of one or more trains of nontechnical specification equipment; (4) did not screen as potentially risk significant due to seismic, flooding, or severe weather initiating event. The finding was determined to have a cross cutting aspect in the area of problem identification and resolution associated with the corrective action component because the licensee failed to thoroughly evaluate concerns with operability limit for service water booster pump A and D such that the resolution address causes an extent of conditions, as necessary. Specifically, operability lower limit was identified during the initiation of Condition Report CR-CNS-2011-07980, but the licensee failed to update the operability limits during the review of the condition report. |
Site: | Cooper |
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Report | IR 05000298/2012003 Section 1R22 |
Date counted | Jun 30, 2012 (2012Q2) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | NRC identified |
Inspection Procedure: | IP 71111.22 |
Inspectors (proximate) | G Pick G George L Carson J Josey V Gaddy C Alldredge B Hagar C Henderson |
CCA | P.2, Evaluation |
INPO aspect | PI.2 |
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Finding - Cooper - IR 05000298/2012003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Cooper) @ 2012Q2
Self-Identified List (Cooper)
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