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The following information was obtained fro … The following information was obtained from the licensee via facsimile:</br>At 1630 (hrs CST) the control room was performing head lift and pre-rod drive unlatching checkout and discovered R-12 (Containment Radiation Monitor) would not isolate reactor ventilation isolation. Investigation found that work on Engineered Safeguards Features pre-startup logic test had defeated both Train A and B automatic isolation signals to (Reactor Building Ventilation). This test was started and signals defeated at 0803 (hrs.) and 0804 (hrs.). Refueling evolutions, upper internals lift and rod latching were performed. Technical Specifications require auto-isolation capability for (Reactor Building Ventilation) during refueling ops.</br>Both R-12 and R-21 would respond to high radiation and manual isolation of Reactor Building Ventilation was still available.</br>Currently, refueling operations are stopped until auto-isolation of Reactor Building Ventilation is restored.</br>The licensee has determined that no increased gaseous or particulate radiation levels existed while the auto-isolation features were defeated.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
22:30:00, 18 November 2004 +
18:59:00, 18 November 2004 +
22:30:00, 18 November 2004 +
The following information was obtained fro … The following information was obtained from the licensee via facsimile:</br>At 1630 (hrs CST) the control room was performing head lift and pre-rod drive unlatching checkout and discovered R-12 (Containment Radiation Monitor) would not isolate reactor ventilation isolation. Investigation found that work on Engineered Safeguards Features pre-startup logic test had defeated both Train A and B automatic isolation signals to (Reactor Building Ventilation). This test was started and signals defeated at 0803 (hrs.) and 0804 (hrs.). Refueling evolutions, upper internals lift and rod latching were performed. Technical Specifications require auto-isolation capability for (Reactor Building Ventilation) during refueling ops.</br>Both R-12 and R-21 would respond to high radiation and manual isolation of Reactor Building Ventilation was still available.</br>Currently, refueling operations are stopped until auto-isolation of Reactor Building Ventilation is restored.</br>The licensee has determined that no increased gaseous or particulate radiation levels existed while the auto-isolation features were defeated.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
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>.
00:00:00, 18 November 2004 +
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>.
02:22:19, 2 March 2018 +
18:59:00, 18 November 2004 +
false +
false +
-0.147 d (-3.52 hours, -0.021 weeks, -0.00482 months) +
22:30:00, 18 November 2004 +
Both Trains of Radiation Monitoring Automatic Isolation Features Disabled During Refueling Operations +
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.