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H.4 + and H.5 +

A self-revealing, NCVof 10 CFR 50, Appendi … A self-revealing, NCVof 10 CFR 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, was identified for Dominion\'s failure to have an adequate procedure for operating the Unit 3 charging pumps. Specifically, Dominion operating procedure (OP) 3304A, Charging and Letdown, did not require verification of Reactor Plant Closed Cooling Water (RPCCW) flow to the seal water heat exchanger, which resulted in overheating of the \'B\' charging pump during a reactor coolant system (RCS) vacuum fill on May 1, 2010. Dominion has created corrective actions to make procedural enhancements to OP-3304A, Charging and Letdown, and OP-3353.MB1C, Main Board Annunciator Response. The inspectors determined this finding was more than minor because it was associated with the Configuration Control attribute of the Mitigating Systems cornerstone, and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors performed an initial screening of the finding in accordance with IMC 0609.04, Phase 1 - Initial Screening and Characterization of Findings. The inspectors then evaluated the significance of the finding using Inspection Manual Chapter 0609, Appendix G, Shutdown Operations - Significance Determination Process, Checklist 3, PWR Cold Shutdown and Refueling Operation; RCS Open and Refueling Cavity Level < 23\' Or RCS Closed and No Inventory in Pressurizer; Time to Boiling < 2 hours, and determined that the finding was of very low safety significance (Green) because all of the shutdown safety function guidelines were met. The inspectors determined that this finding had a cross-cutting aspect in the Human Performance cross-cutting area, Work Control component, because Dominion relied on the work control process to assure that the RPCCW cooling water was in service to the seal water heat exchanger at the time that the RCS vacuum fill was scheduled. Specifically, the work control process was insufficiently robust to ensure that cooling water was supplied to the seal water heat exchanger during charging pump operations (H.3(b)).hanger during charging pump operations (H.3(b)).

Discovered date

23:59:59, 30 June 2010 +

Docket

05000336 + and 05000423 +

Event date

23:59:59, 30 June 2010 +

Finding integer

4 +

Finding type

Non-cited violation +

Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.

Hours

2.314815e-5 d (5.555556e-4 hours, 3.306878e-6 weeks, 7.61e-7 months) +

INPO aspect

WP.1 +

Identified by

Self-revealing +

Inspection Manual Chapter

NRC Inspection Manual 0609.04 + and NRC Inspection Manual 0609, Appendix G +

Inspection procedure

IP 71111.02 +

Inspection report

IR 05000336/2010003 +

Inspector

J Richmond +, P Kaufman +, T Moslak +, Carey Bickett +, Brian Haagensen +, Jeff Rady +, James Krafty +, Diane Jackson +, Douglas Dodson + and Sarah Shaffer +

Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.

00:40:01, 21 February 2018 +

Person