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The inspectors identified a self-revealing … The inspectors identified a self-revealing Green non-cited violation of Technical Specification 5.4.1, Procedures, because Entergy did not provide adequate procedures in that appropriate operator actions to recover systems and components important to safety were not included within operating procedures 2.1.1, Startup from Shutdown, and 2.2.93, Main Condenser Vacuum System, as well as abnormal operating procedure 2.4.36, Decreasing Condenser Vacuum. Corrective actions include, in part, for Entergy engineers to establish operational limits for the offgas system, to include the factors of reactor power, air in-leakage, sea water system alignment, status of the augmented offgas system, status of the main turbine, and sea water inlet temperature, and to incorporate these limitations into site procedures. Entergy entered this issue into their corrective action program as condition report CR-PNP-2015-5197. This finding was more than minor because it was associated with the procedure quality attribute of the Initiating Events cornerstone and adversely affected the cornerstone objective to limit the likelihood of events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. Additionally, this performance deficiency is similar to example 4.b in IMC 0612, Appendix E, Examples of Minor Issues, in that it contributed to a reactor trip. The inspectors evaluated the finding using IMC 0609, Appendix A, Exhibit 1, Initiating Events Screening Questions. The inspectors determined this finding was of very low safety significance (Green) because it did not cause a loss of mitigation equipment relied upon to transition the plant from the onset of the trip to a stable shutdown condition. This finding had a cross-cutting aspect in the area of Human Performance, Design Margins, because Entergy did not operate equipment within design margins. Specifically, Entergy staffs lack of awareness of the limitations of offgas system during startup and while placing the main turbine in service resulted in operators establishing conditions that were outside those limitations.tions that were outside those limitations.
23:59:59, 30 September 2015 +
23:59:59, 30 September 2015 +
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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>.
12:57:49, 25 September 2017 +
23:59:59, 30 September 2015 +