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ENS 43892
Show incoming properties 
Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor +, 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat +  and 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident +
Current power
100  +
Current reactor mode
Power Operation +
Description
Both centrifugal charging pumps and both s … Both centrifugal charging pumps and both safety injection pumps (were) declared inoperable due to 5% to 7% voiding identified in a portion of common suction piping. (The) pumps were inoperable for 27 minutes. (The) line was vented to remove (the) void and (the) pumps restored to operable. (These pumps are the High Head and Intermediate Head Emergency Core Cooling Pumps.)</br>The source of the voiding is not understood and is under investigation. All systems functioned as required. </br>R4DO (Bywater) notified. </br>The licensee has notified the NRC Resident Inspector.</br> * * * UPDATE FROM PRESTON LAWSON TO P. SNYDER AT 1733 ON 3/7/08 * * *</br>Wolf Creek engineering evaluated the effects of the voids found in the common suction piping for the high head and the intermediate head emergency core cooling pumps. The pumps and their systems would have been able to perform their intended safety functions.</br>The licensee will notify the NRC Resident Inspector.</br>Notified R4DO (Cain). Resident Inspector. Notified R4DO (Cain).  +
Discovered date
00:12:00, 11 January 2008  +
ENS id number
43,892  +
Emergency class
Non Emergency +
Entered date
20:34:00, 10 January 2008  +
Event date
00:12:00, 11 January 2008  +
Event description
Both centrifugal charging pumps and both s … Both centrifugal charging pumps and both safety injection pumps (were) declared inoperable due to 5% to 7% voiding identified in a portion of common suction piping. (The) pumps were inoperable for 27 minutes. (The) line was vented to remove (the) void and (the) pumps restored to operable. (These pumps are the High Head and Intermediate Head Emergency Core Cooling Pumps.)</br>The source of the voiding is not understood and is under investigation. All systems functioned as required. </br>R4DO (Bywater) notified. </br>The licensee has notified the NRC Resident Inspector.</br> * * * UPDATE FROM PRESTON LAWSON TO P. SNYDER AT 1733 ON 3/7/08 * * *</br>Wolf Creek engineering evaluated the effects of the voids found in the common suction piping for the high head and the intermediate head emergency core cooling pumps. The pumps and their systems would have been able to perform their intended safety functions.</br>The licensee will notify the NRC Resident Inspector.</br>Notified R4DO (Cain). Resident Inspector. Notified R4DO (Cain).  +
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>.
ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +, ENS 43892 +  and ENS 43892 +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 7 March 2008  +
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>.
02:14:53, 2 March 2018  +
NRC officer
Karl Diederich +
Notification date
20:34:00, 10 January 2008  +
Originated by
James M. Kuras +
Reactor critical
true  +
Reactor scram
false  +
Reactor type
Westinghouse PWR 4-Loop +
Region
NRC Region 4 +
Reporting criterion
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor +, 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat +  and 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident +
Reporting time
-0.151 d (-3.63 hours, -0.0216 weeks, -0.00497 months)  +
Site
Wolf Creek +
Start date
00:12:00, 11 January 2008  +
State
Kansas +
Title
Voiding Discovered in High Head and Intermediate Head Si Common Suction  +
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.
http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2008/20080310en.html#en43892  +
Unit
1  +
 
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