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ENS 43645
Show incoming properties
Category
ENS Notification  and Power Reactor
CFR
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
During performance of the quarterly HPCI v … During performance of the quarterly HPCI valve stroke test the HV-055-2F093, HPCI Vacuum Breaker Outboard PCIV, failed to close. The PCIV was declared inoperable. The valve was subsequently closed and de-energized to meet Technical Specification requirements. The valve did close from the handswitch on the subsequent attempt, investigation into the cause is in progress. The closure of this valve at 0149 on 9/17/07 prevents Unit 2 HPCI from performing it's safety related function. Unit 2 RCIC and all other Unit 2 ECCS systems remain operable.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector.  +
Discovered date
05:49:00, 17 September 2007  +
ENS id number
43,645  +
Emergency class
Non Emergency +
Entered date
03:16:00, 17 September 2007  +
Event date
05:49:00, 17 September 2007  +
Event description
During performance of the quarterly HPCI v … During performance of the quarterly HPCI valve stroke test the HV-055-2F093, HPCI Vacuum Breaker Outboard PCIV, failed to close. The PCIV was declared inoperable. The valve was subsequently closed and de-energized to meet Technical Specification requirements. The valve did close from the handswitch on the subsequent attempt, investigation into the cause is in progress. The closure of this valve at 0149 on 9/17/07 prevents Unit 2 HPCI from performing it's safety related function. Unit 2 RCIC and all other Unit 2 ECCS systems remain operable.</br>The licensee notified the NRC Resident Inspector.ensee 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>.
ENS 43645 +, ENS 43645 +, ENS 43645 +, ENS 43645 +, ENS 43645 +, ENS 43645 +, ENS 43645 +, ENS 43645 +, ENS 43645 +, ENS 43645 +, ENS 43645 +, ENS 43645 +, ENS 43645 +  and ENS 43645 +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 17 September 2007  +
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>.
02:15:57, 2 March 2018  +
NRC officer
Jeff Rotton +
Notification date
03:16:00, 17 September 2007  +
Originated by
Ned Dennin +
Reactor critical
true  +
Reactor scram
false  +
Reactor type
GE-4 +
Region
NRC Region 1 +
Reporting criterion
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident +
Reporting time
-0.106 d (-2.55 hours, -0.0152 weeks, -0.00349 months)  +
Site
Limerick +
Start date
05:49:00, 17 September 2007  +
State
Pennsylvania +
Title
Hpci Unable to Perform It'S Safety Related Function  +
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/2007/20070918en.html#en43645  +
Unit
2  +
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