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At 0522 EST on November 25, 2011, operator … At 0522 EST on November 25, 2011, operators manually started all Auxiliary Feedwater (AFW) pumps in response to a manual trip of the Unit 1 East Main Feedwater Pump due to bearing failure.</br>Operators were responding to increasing vibrations on the East Main Feedwater Pump and reducing turbine load when the East Main Feedwater Pump was manually tripped (at approximately 90% power) due to high vibrations. Operators entered the abnormal operating procedure for Loss of One Main Feedwater Pump, which directs starting all three AFW pumps.</br>Plant power was stabilized at approximately 58%.</br>The licensee has notified the NRC Senior Resident Inspector.</br>This notification is being made in accordance with 10CFR50.72(b)(3)(iv)(A) due to the valid actuation of the AFW system in response to equipment failure.W system in response to equipment failure. +
10:23:00, 25 November 2011 +
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06:32:00, 25 November 2011 +
10:23:00, 25 November 2011 +
At 0522 EST on November 25, 2011, operator … At 0522 EST on November 25, 2011, operators manually started all Auxiliary Feedwater (AFW) pumps in response to a manual trip of the Unit 1 East Main Feedwater Pump due to bearing failure.</br>Operators were responding to increasing vibrations on the East Main Feedwater Pump and reducing turbine load when the East Main Feedwater Pump was manually tripped (at approximately 90% power) due to high vibrations. Operators entered the abnormal operating procedure for Loss of One Main Feedwater Pump, which directs starting all three AFW pumps.</br>Plant power was stabilized at approximately 58%.</br>The licensee has notified the NRC Senior Resident Inspector.</br>This notification is being made in accordance with 10CFR50.72(b)(3)(iv)(A) due to the valid actuation of the AFW system in response to equipment failure.W system in response to equipment failure. +
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>.
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00:00:00, 25 November 2011 +
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>.
22:26:24, 24 September 2017 +
06:32:00, 25 November 2011 +
true +
false +
-0.16 d (-3.85 hours, -0.0229 weeks, -0.00527 months) +
10:23:00, 25 November 2011 +
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.