05000298/FIN-2011003-09
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Finding | |
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Title | Failure to Initiate Condition Reports for Nonconformances Identified During System Walk Downs |
Description | The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Actions, for the failure of licensee personnel to take actions to promptly correct a condition adverse to quality. Specifically, the licensee did not take any interim actions to eliminate procedure steps that allowed venting of emergency core cooling systems without determining the amount of gas accumulated and the potential impact on system operability. The performance deficiency associated with this finding involved the failure to correct a condition adverse to quality. This finding was more than minor because it affected the equipment performance attribute of the Mitigating Systems cornerstone objective to ensure the availability, reliability, and capability of the emergency core cooling systems to respond to initiating events and prevent undesirable consequences. Specifically, licensee personnel failed to promptly correct the previously identified condition adverse to quality of not tracking emergency core cooling system gas accumulation and its potential effects on system operability during surveillance testing. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609.04, Phase 1 Initial Screening and Characterization of Findings. The finding was determined to be of very low safety significance (Green) because it was not a design or qualification deficiency confirmed not to result in loss of operability or functionality; did not result in loss of a safety function, did not result in loss of safety function of a single train for longer than its allowed outage time, did not result in loss of a risk-significant nontechnical specification system per 10 CFR 50.65, and did not screen as potentially risk significant because of a seismic, flooding or severe weather initiating event. The finding was determined to have a cross-cutting aspect in the area of human performance, associated with the resources component, in that, the licensee failed to provide maintenance of design margins. Specifically, the licensee did not ensure that station procedure were adequate to assure nuclear safety, in that they did require measuring of the amount of entrained gas and any impact on equipment operability. |
Site: | Cooper |
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Report | IR 05000298/2011003 Section 4OA5 |
Date counted | Jun 30, 2011 (2011Q2) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | NRC identified |
Inspection Procedure: | |
Inspectors (proximate) | G Pick J Josey L Ricketson M Chambers M Young N Greene V Gaddy |
CCA | H.6, Design Margins |
INPO aspect | WP.2 |
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Finding - Cooper - IR 05000298/2011003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Cooper) @ 2011Q2
Self-Identified List (Cooper)
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