Browse wiki
Jump to navigation
Jump to search
100 +
On 5/4/2010 at 15:12 CDT when attempting t … On 5/4/2010 at 15:12 CDT when attempting to flush CH-1A charging pump, a loss of charging flow occurred. </br>CH-193 discharge valve for CH-1A charging pump was found to be open. This resulted in a flow path to the auxiliary building sump tank when CH-356 charging pump CH-1A discharge drain valve to waste disposal system was opened. This resulted in an approximately 38 gpm leak from the reactor coolant system via letdown to waste. This leak was isolated within 1 minute.</br>The site entered and exited the conditions for NOUE before the shift manager was able to make an E-plan call. There are currently no emergency conditions on site and an NOUE was never declared. The reactor continued to operate at 100% power throughout the event. The cause of this event is believed to be a valve line-up error.</br>The NRC Resident Inspector has been notified. The site plans to notify the State of Nebraska. No other notifications are planned.</br>* * * RETRACTION AT 1625 EDT ON 5/5/10 FROM MATZKE TO HUFFMAN * * * </br>The declaration of Unusual Event SU 5 EAL 2, RCS leakage, on 5/4/10 is being retracted, because the declaration was inaccurate. The leak was an intersystem leak of the CVCS, not RCS leakage, and the leak was isolated as previously noted. Therefore, the leakage did not meet the initiating condition for the EAL.</br>The licensee has notified the NRC Resident Inspector and plans to notify the State of Nebraska. Notified R4DO (Farnholtz), NRR EO (Quay), and IRD (McDermott).oltz), NRR EO (Quay), and IRD (McDermott). +
20:12:00, 4 May 2010 +
45,898 +
16:56:00, 4 May 2010 +
20:12:00, 4 May 2010 +
On 5/4/2010 at 15:12 CDT when attempting t … On 5/4/2010 at 15:12 CDT when attempting to flush CH-1A charging pump, a loss of charging flow occurred. </br>CH-193 discharge valve for CH-1A charging pump was found to be open. This resulted in a flow path to the auxiliary building sump tank when CH-356 charging pump CH-1A discharge drain valve to waste disposal system was opened. This resulted in an approximately 38 gpm leak from the reactor coolant system via letdown to waste. This leak was isolated within 1 minute.</br>The site entered and exited the conditions for NOUE before the shift manager was able to make an E-plan call. There are currently no emergency conditions on site and an NOUE was never declared. The reactor continued to operate at 100% power throughout the event. The cause of this event is believed to be a valve line-up error.</br>The NRC Resident Inspector has been notified. The site plans to notify the State of Nebraska. No other notifications are planned.</br>* * * RETRACTION AT 1625 EDT ON 5/5/10 FROM MATZKE TO HUFFMAN * * * </br>The declaration of Unusual Event SU 5 EAL 2, RCS leakage, on 5/4/10 is being retracted, because the declaration was inaccurate. The leak was an intersystem leak of the CVCS, not RCS leakage, and the leak was isolated as previously noted. Therefore, the leakage did not meet the initiating condition for the EAL.</br>The licensee has notified the NRC Resident Inspector and plans to notify the State of Nebraska. Notified R4DO (Farnholtz), NRR EO (Quay), and IRD (McDermott).oltz), NRR EO (Quay), and IRD (McDermott). +
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>.
100 +
00:00:00, 5 May 2010 +
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>.
02:09:44, 2 March 2018 +
16:56:00, 4 May 2010 +
true +
false +
-0.136 d (-3.27 hours, -0.0195 weeks, -0.00448 months) +
20:12:00, 4 May 2010 +
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.