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High Pressure Coolant Injection (HPCI) sys … High Pressure Coolant Injection (HPCI) system was declared inoperable due to failure of the turbine governor valve to open with the Auxiliary Oil Pump (AOP) running. The AOP had been started to obtain oil samples for routine maintenance. The turbine was not expected to roll since there was no initiation signal, but the HPCI governor valve was expected to open to try to raise HPCI speed. Failure of the governor valve to open would prevent HPCI from achieving rated system flow and pressure. HPCI is also considered unavailable. All remaining ECCS systems and RCIC are operable. Cause of the condition is currently unknown. Troubleshooting activities are being planned.</br>HPCI is a single train system. This report is submitted in accordance with 10 CFR 50.72(b)(3)(v) as a condition that at time of discovery could prevent the fulfillment of the safety function of an SSC (Structure, System and Components) needed to mitigate the consequence of an accident.</br>The NRC Resident Inspector has been notified of this event.Inspector has been notified of this event. +
19:37:00, 21 December 2009 +
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19:37:00, 21 December 2009 +
High Pressure Coolant Injection (HPCI) sys … High Pressure Coolant Injection (HPCI) system was declared inoperable due to failure of the turbine governor valve to open with the Auxiliary Oil Pump (AOP) running. The AOP had been started to obtain oil samples for routine maintenance. The turbine was not expected to roll since there was no initiation signal, but the HPCI governor valve was expected to open to try to raise HPCI speed. Failure of the governor valve to open would prevent HPCI from achieving rated system flow and pressure. HPCI is also considered unavailable. All remaining ECCS systems and RCIC are operable. Cause of the condition is currently unknown. Troubleshooting activities are being planned.</br>HPCI is a single train system. This report is submitted in accordance with 10 CFR 50.72(b)(3)(v) as a condition that at time of discovery could prevent the fulfillment of the safety function of an SSC (Structure, System and Components) needed to mitigate the consequence of an accident.</br>The NRC Resident Inspector has been notified of this event.Inspector has been notified of this event. +
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>.
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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>.
22:31:08, 24 September 2017 +
20:17:00, 21 December 2009 +
true +
false +
0.0279 d (0.67 hours, 0.00399 weeks, 9.17766e-4 months) +
19:37:00, 21 December 2009 +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.