Browse wiki
Jump to navigation
Jump to search
At 0928 EDT on May 14, 2012, the 'B' Emerg … At 0928 EDT on May 14, 2012, the 'B' Emergency Service Water (ESW) pump started during testing from the Unit 1 remote shutdown panel (RSP). The likely cause of the start was either human error in performing continuity checks or inadvertent contact with the manual start circuit in the RSP. Based on the likely cause, this was an invalid actuation of a system listed in 10 CFR 50.73(a)(2)(iv).</br>As indicated in 10 CFR 50.73(a)(1), in the case of an invalid actuation reported under 10 CFR 50.73(a)(2)(iv) other than actuation of the reactor protection system (RPS) when the reactor is critical, the licensee may, at its option, provide a telephone notification to the NRC Operations Center within 60 days after discovery of the event instead of submitting a written LER. This 60-day telephone notification is being made to meet the reporting requirements instead of submitting an LER since the actuation was invalid and was not an RPS actuation with the reactor critical. </br>The following additional information is being provided as specified in NUREG-1022: </br>The specific train(s) and system(s) that were actuated: The 'B' ESW pump inadvertently started during testing from the Unit 1 remote shutdown panel.</br>Whether each train actuation was complete or partial: This was a partial actuation (one of four ESW pumps).</br>Whether or not the system started and functioned successfully: The 'B' ESW pump started successfully, operated properly, and continued running until manually secured via normal controls.</br>At the time of the event, the licensee was performing a surveillance where control was shifted from the control room to the remote shutdown panel.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
13:28:00, 14 May 2012 +
48,092 +
12:26:00, 11 July 2012 +
13:28:00, 14 May 2012 +
At 0928 EDT on May 14, 2012, the 'B' Emerg … At 0928 EDT on May 14, 2012, the 'B' Emergency Service Water (ESW) pump started during testing from the Unit 1 remote shutdown panel (RSP). The likely cause of the start was either human error in performing continuity checks or inadvertent contact with the manual start circuit in the RSP. Based on the likely cause, this was an invalid actuation of a system listed in 10 CFR 50.73(a)(2)(iv).</br>As indicated in 10 CFR 50.73(a)(1), in the case of an invalid actuation reported under 10 CFR 50.73(a)(2)(iv) other than actuation of the reactor protection system (RPS) when the reactor is critical, the licensee may, at its option, provide a telephone notification to the NRC Operations Center within 60 days after discovery of the event instead of submitting a written LER. This 60-day telephone notification is being made to meet the reporting requirements instead of submitting an LER since the actuation was invalid and was not an RPS actuation with the reactor critical. </br>The following additional information is being provided as specified in NUREG-1022: </br>The specific train(s) and system(s) that were actuated: The 'B' ESW pump inadvertently started during testing from the Unit 1 remote shutdown panel.</br>Whether each train actuation was complete or partial: This was a partial actuation (one of four ESW pumps).</br>Whether or not the system started and functioned successfully: The 'B' ESW pump started successfully, operated properly, and continued running until manually secured via normal controls.</br>At the time of the event, the licensee was performing a surveillance where control was shifted from the control room to the remote shutdown panel.</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>.
00:00:00, 11 July 2012 +
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>.
02:03:42, 2 March 2018 +
12:26:00, 11 July 2012 +
false +
57.957 d (1,390.97 hours, 8.28 weeks, 1.905 months) +
13:28:00, 14 May 2012 +
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.