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The following information is provided as a … The following information is provided as a 60 day telephone notification to NRC under 10 CFR 50.73(a)(1) in lieu of submitting a written LER to report a condition that resulted in an invalid actuation of the WBN (Watts Bar Nuclear) Train A Containment Vent Isolation signal. NUREG1022 Revision 2 identifies the Information that needs to be reported as discussed below.</br>(a) The specific train(s) and system(s) that were actuated.</br>On September 15, 2004, at 0914 EDT, a Train A Containment Vent Isolation (CVI) signal was received when the A Train Containment Purge Radiation Monitor momentarily spiked above the High Radiation Trip set-point. The B Train Containment Purge system was in operation at the time of the CVI signal and automatically shutdown as designed.</br>(b) Whether each train actuation was complete or partial.</br>The actuation was considered complete. The CVI signal for Train A automatically isolated the containment ventilation system as designed. The A Train Containment Purge Radiation Monitor was removed from service and considered inoperable due to no supporting indication of actual radiation by redundant radiation monitors or recorded trend data. </br>(c) Whether or not the system started and functioned successfully. </br>Train A Containment Vent Isolation signal automatically actuated and functioned successfully. The CVI signal was not in response to an actual plant condition. Maintenance on the Train A Containment Purge Radiation Monitor, revealed a loose connection in the detector cable. The radiation monitor was repaired and returned to service and the containment ventilation air cleanup unit was also returned to service." </br>The NRC Resident Inspector was notified of this by the licensee.ctor was notified of this by the licensee. +
14:14:00, 15 September 2004 +
13:52:00, 9 November 2004 +
14:14:00, 15 September 2004 +
The following information is provided as a … The following information is provided as a 60 day telephone notification to NRC under 10 CFR 50.73(a)(1) in lieu of submitting a written LER to report a condition that resulted in an invalid actuation of the WBN (Watts Bar Nuclear) Train A Containment Vent Isolation signal. NUREG1022 Revision 2 identifies the Information that needs to be reported as discussed below.</br>(a) The specific train(s) and system(s) that were actuated.</br>On September 15, 2004, at 0914 EDT, a Train A Containment Vent Isolation (CVI) signal was received when the A Train Containment Purge Radiation Monitor momentarily spiked above the High Radiation Trip set-point. The B Train Containment Purge system was in operation at the time of the CVI signal and automatically shutdown as designed.</br>(b) Whether each train actuation was complete or partial.</br>The actuation was considered complete. The CVI signal for Train A automatically isolated the containment ventilation system as designed. The A Train Containment Purge Radiation Monitor was removed from service and considered inoperable due to no supporting indication of actual radiation by redundant radiation monitors or recorded trend data. </br>(c) Whether or not the system started and functioned successfully. </br>Train A Containment Vent Isolation signal automatically actuated and functioned successfully. The CVI signal was not in response to an actual plant condition. Maintenance on the Train A Containment Purge Radiation Monitor, revealed a loose connection in the detector cable. The radiation monitor was repaired and returned to service and the containment ventilation air cleanup unit was also returned to service." </br>The NRC Resident Inspector was notified of this by the licensee.ctor was notified of this by the licensee. +
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00:00:00, 9 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>.
02:22:22, 2 March 2018 +
13:52:00, 9 November 2004 +
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54.943 d (1,318.63 hours, 7.849 weeks, 1.806 months) +
14:14:00, 15 September 2004 +
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.