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The following information was provided by … The following information was provided by the licensee via phone and email:</br>At 0002 EDT on 4/4/25, Unit 2 was in mode 3 with all three reactor coolant pumps (RCPs) running in preparation for a reactor startup when an alarm for the 'B' RCP vibration alert/danger was received due to the indication of elevated vertical proximity vibrations. At 0014, the 'B' RCP vertical proximity vibration indication exceeded the pump trip setpoint and the reactor trip breakers were manually opened, followed by the 'B' RCP being manually tripped. All rods were fully inserted prior to the reactor protection system (RPS) actuation, and all required equipment responded as designed.</br>This event is reportable in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the RPS.</br>NRC Resident has been notified.f the RPS.
NRC Resident has been notified. +
04:14:00, 4 April 2025 +
57,645 +
06:35:00, 4 April 2025 +
04:14:00, 4 April 2025 +
The following information was provided by … The following information was provided by the licensee via phone and email:</br>At 0002 EDT on 4/4/25, Unit 2 was in mode 3 with all three reactor coolant pumps (RCPs) running in preparation for a reactor startup when an alarm for the 'B' RCP vibration alert/danger was received due to the indication of elevated vertical proximity vibrations. At 0014, the 'B' RCP vertical proximity vibration indication exceeded the pump trip setpoint and the reactor trip breakers were manually opened, followed by the 'B' RCP being manually tripped. All rods were fully inserted prior to the reactor protection system (RPS) actuation, and all required equipment responded as designed.</br>This event is reportable in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the RPS.</br>NRC Resident has been notified.f the RPS.
NRC Resident has been notified. +
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, 4 April 2025 +
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>.
11:20:08, 7 April 2025 +
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0.0979 d (2.35 hours, 0.014 weeks, 0.00322 months) +
04:14:00, 4 April 2025 +
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.