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TS 5.4 requires, in part, that the applica … TS 5.4 requires, in part, that the applicable procedures recommended in Regulatory Guide 1.33, Appendix A, November 1972,be established, implemented, and maintained, Regulatory Guide 1.33, Section D, Procedure for Startup, Operation, and Shutdown of Safety-Related BWR Systems, specifies, in part, that instructions for draining should be prepared, as appropriate, for the shutdown cooling, fuel storage pool cooling, and condensate systems. Entergy staff identified that, contrary to the above, they had not complied with TS 5.4.1 on October 3, 2010, when Entergy personnel did not adequately implement procedure OP-30A, Attachment 2, Checklist for Draining, step F.4.1. Specifically, upon performing additional reviews as a result of finding the B RHR valve mispositioned, Entergy staff identified that the B RHR auto control bypass and A and B CS auto actuation bypass switches had been in bypass when step F.4.1 was performed, which through verifying compliance with various technical specifications, required the verification that two low pressure emergency core cooling systems be operable prior to installing the spent fuel pool gates. However, with the three switches placed in bypass, only one emergency core cooling system, A RHR, was operable. Entergy personnel documented this condition in CR-JAF-2010-06659. The inspectors determined the significance of this finding using IMC 0609, Appendix G, Shutdown Operations Significance Determination Process. The issue was determined to screen as very low safety significance (Green) because the B RHR and A and B CS subsystems could be considered available with respect to Appendix G, Section 4.0, and Attachment 3, Section 2.2.3. Specifically, the inspectors determined that operators had more than twice the time available than would have been required to identify and take action to restore an additional injection source given an inadvertent RCS inventory loss. given an inadvertent RCS inventory loss. +

Discovered date

23:59:59, 31 December 2010 +

Docket

05000333 +

Event date

23:59:59, 31 December 2010 +

Finding integer

3 +

Finding type

Non-cited violation +

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Identified by

Licensee-identified +

Inspection Manual Chapter

NRC Inspection Manual 0609 +

Inspection report

IR 05000333/2010005 +

Inspector

James Noggle +, Mel Gray +, David Jones +, R Latta +, Ed Knutson +, Scott Rutenkroger +, Paul Prescott +, Douglas Dodson + and Thomas Burns +

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>.

15:40:50, 30 May 2018 +

Operating procedure

OP-30A +

Person