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ENS 56564
Show incoming properties
Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72(b)(3)(iv)(A), System Actuation +  and 10 CFR 50.72#b3ivA +
Current power
100  +
Current reactor mode
Power Operation +
Description
The following information was provided by … The following information was provided by the licensee via email:</br>On April 12, 2023, with Seabrook Station Unit 1 in Mode 6 at zero percent power, a valid actuation of the 'B' emergency diesel generator (EDG) emergency power sequencer occurred due to a loss of power to the 'B' train emergency bus. The 'B' EDG was removed from service for scheduled maintenance during this time.</br>This event is being reported pursuant to 10 CFR 50.72(b)(3)(iv)(A) for a valid actuation of the 'B' EDG emergency power sequencer.</br>The NRC Resident Inspector has been notified. NRC Resident Inspector has been notified.  +
Discovered date
15:07:00, 12 April 2023  +
ENS id number
56,564  +
Emergency class
Non Emergency +
Entered date
09:37:00, 8 June 2023  +
Event date
15:07:00, 12 April 2023  +
Event description
The following information was provided by … The following information was provided by the licensee via email:</br>On April 12, 2023, with Seabrook Station Unit 1 in Mode 6 at zero percent power, a valid actuation of the 'B' emergency diesel generator (EDG) emergency power sequencer occurred due to a loss of power to the 'B' train emergency bus. The 'B' EDG was removed from service for scheduled maintenance during this time.</br>This event is being reported pursuant to 10 CFR 50.72(b)(3)(iv)(A) for a valid actuation of the 'B' EDG emergency power sequencer.</br>The NRC Resident Inspector has been notified. NRC Resident Inspector 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>.
ENS 56564 +, ENS 56564 +, ENS 56564 +, ENS 56564 +, ENS 56564 +, ENS 56564 +, ENS 56564 +, ENS 56564 +, ENS 56564 +, ENS 56564 +, ENS 56564 +, ENS 56564 +, ENS 56564 +  and ENS 56564 +
Initial power
0  +
Initial reactor mode
Refueling +
Last update date
00:00:00, 8 June 2023  +
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>.
11:30:16, 12 June 2023  +
NRC officer
Kerby Scales +
Notification date
09:37:00, 8 June 2023  +
Originated by
Andrew Ferraioli +
Reactor critical
false  +
Reactor scram
false  +
Reactor type
Westinghouse PWR 4-Loop +
Region
NRC Region 1 +
Reporting criterion
10 CFR 50.72(b)(3)(iv)(A), System Actuation +
Reporting time
56.771 d (1,362.5 hours, 8.11 weeks, 1.866 months)  +
Site
Seabrook +
Start date
15:07:00, 12 April 2023  +
State
New Hampshire +
System
Emergency Diesel Generator +
Title
Automatic Actuation of "B" Emergency Diesel Generator Emergency Power Sequencer  +
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.
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2023/20230612en.html#en56564  +
Unit
1  +
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