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This is not an LER. The reports being made … This is not an LER. The reports being made to the NRC under 10 CFR 50.73(a)(2)(iv)(A), and the 60 day telephone notification option under 10 CFR 50.73(a)(1). The event included invalid '. . .general isolation signals affecting containment isolation valves in more than one system. . .' as discussed in 10 CFR 50.73(a)(2)(iv)(B).</br>The following information is provided as requested in NUREG-1022:</br>(a) The specific train(s) and systems that were actuated?</br>On January 14, 2008 at 13:41 hours. Unit 2 received invalid Division 1 Primary Containment isolation signals to both Group 5 (RHR Shutdown Cooling Isolation valves) and Group 10 (Reactor Core Isolation Cooling (RCIC) system isolation valves) during Division 1 instrumentation surveillance testing. While performing testing, an incorrect lead was lifted causing this invalid actuation.</br>(b) Whether each train actuation was complete or partial.</br>The event resulted in closure of the RCIC steam supply header outboard containment isolation valve. The Division 1 RHR Shutdown Cooling System isolation valves were already closed at the time of the isolation signal.</br>(b) Whether or not the system started and functioned as designed.</br>The Primary Containment isolation instrumentation logic and associated valve closure function (for RCIC) actuated as designed.</br>The licensee took prompt actions to recover the RCIC and RHR systems.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
18:41:00, 14 January 2008 +
43,923 +
20:16:00, 22 January 2008 +
18:41:00, 14 January 2008 +
This is not an LER. The reports being made … This is not an LER. The reports being made to the NRC under 10 CFR 50.73(a)(2)(iv)(A), and the 60 day telephone notification option under 10 CFR 50.73(a)(1). The event included invalid '. . .general isolation signals affecting containment isolation valves in more than one system. . .' as discussed in 10 CFR 50.73(a)(2)(iv)(B).</br>The following information is provided as requested in NUREG-1022:</br>(a) The specific train(s) and systems that were actuated?</br>On January 14, 2008 at 13:41 hours. Unit 2 received invalid Division 1 Primary Containment isolation signals to both Group 5 (RHR Shutdown Cooling Isolation valves) and Group 10 (Reactor Core Isolation Cooling (RCIC) system isolation valves) during Division 1 instrumentation surveillance testing. While performing testing, an incorrect lead was lifted causing this invalid actuation.</br>(b) Whether each train actuation was complete or partial.</br>The event resulted in closure of the RCIC steam supply header outboard containment isolation valve. The Division 1 RHR Shutdown Cooling System isolation valves were already closed at the time of the isolation signal.</br>(b) Whether or not the system started and functioned as designed.</br>The Primary Containment isolation instrumentation logic and associated valve closure function (for RCIC) actuated as designed.</br>The licensee took prompt actions to recover the RCIC and RHR systems.</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>.
100 +
00:00:00, 22 January 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>.
02:15:12, 2 March 2018 +
20:16:00, 22 January 2008 +
true +
false +
8.066 d (193.58 hours, 1.152 weeks, 0.265 months) +
18:41:00, 14 January 2008 +
Invalid Actuation of Group 5 and Group 10 Primary Containment Valves During Surveillance Testing +
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.