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At 0041 hours (EST) on 11/05/2013, while p … At 0041 hours (EST) on 11/05/2013, while placing the Condensate Polishers into service, a secondary side perturbation occurred, resulting in a loss of the one running Main Feedwater Pump ('A' Pump) on low suction pressure. At the time, the plant was in Mode 2 with Startup Low Power Physics Testing in progress. By design, this condition resulted in an automatic start of Auxiliary Feedwater. Both 'A' and 'B' Motor-Driven Auxiliary Feedwater (AFW) Pumps started as designed. Steam generator water levels were maintained by the Auxiliary Feedwater flow. The 'B' Motor Driven AFW pump was secured following its automatic start to stabilize steam generator water levels and reactor coolant system temperature. Plant conditions including steam generator water levels have been stabilized. At 0250 hours (EST) 'A' Main Feedwater Pump was restarted and at 0252 hours (EST), the 'A' Motor-Driven AFW pump was secured.</br>At this time, the cause of the secondary side perturbation is being investigated. The plant remains in Mode 2 and Startup Low Power Physics Testing has resumed.</br>Due to the valid actuation of AFW, this event is being reported as an 8-hour non-emergency per 10CFR50.72(b)(3)(iv)(A). At no time during this occurrence was the public or plant staff at risk as a result of this event.</br>The NRC Resident Inspector has been notified. NRC Resident Inspector has been notified. +
05:41:00, 5 November 2013 +
05:00:00, 5 November 2013 +
05:41:00, 5 November 2013 +
At 0041 hours (EST) on 11/05/2013, while p … At 0041 hours (EST) on 11/05/2013, while placing the Condensate Polishers into service, a secondary side perturbation occurred, resulting in a loss of the one running Main Feedwater Pump ('A' Pump) on low suction pressure. At the time, the plant was in Mode 2 with Startup Low Power Physics Testing in progress. By design, this condition resulted in an automatic start of Auxiliary Feedwater. Both 'A' and 'B' Motor-Driven Auxiliary Feedwater (AFW) Pumps started as designed. Steam generator water levels were maintained by the Auxiliary Feedwater flow. The 'B' Motor Driven AFW pump was secured following its automatic start to stabilize steam generator water levels and reactor coolant system temperature. Plant conditions including steam generator water levels have been stabilized. At 0250 hours (EST) 'A' Main Feedwater Pump was restarted and at 0252 hours (EST), the 'A' Motor-Driven AFW pump was secured.</br>At this time, the cause of the secondary side perturbation is being investigated. The plant remains in Mode 2 and Startup Low Power Physics Testing has resumed.</br>Due to the valid actuation of AFW, this event is being reported as an 8-hour non-emergency per 10CFR50.72(b)(3)(iv)(A). At no time during this occurrence was the public or plant staff at risk as a result of this event.</br>The NRC Resident Inspector has been notified. NRC Resident Inspector has been notified. +
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00:00:00, 5 November 2013 +
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>.
01:52:45, 2 March 2018 +
05:00:00, 5 November 2013 +
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-0.0283 d (-0.68 hours, -0.00405 weeks, -9.31464e-4 months) +
05:41:00, 5 November 2013 +
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