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ENS 50142
Show incoming properties
Category
ENS Notification  and Power Reactor
Area
Switchyard +
Atomic Element
Lead +
CFR
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration +, 10 CFR 50.72(b)(3)(iv)(A), System Actuation +, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness +  and 10 CFR 50.72#b3xiii +
Current power
0  +
Current reactor mode
Hot Standby +
Description
At 0702 EDT on 5/25/14, Millstone Units 2 … At 0702 EDT on 5/25/14, Millstone Units 2 and 3 experienced a loss of offsite power and subsequent trip of both units. An Unusual Event was declared by Millstone Units 2 and 3 at 0715 EDT.</br>Power is currently being supplied to all emergency busses by the emergency diesel generators. Offsite power is not available.</br>At this time, it appears that the loss of offsite power is due to a localized issue in the Millstone switchyard. The surrounding areas were not affected.</br>A decision was made to take the NRC to monitoring mode at 0749 EDT with Region 1 in the lead.</br>Notified DHS SWO, FEMA Ops Center, NICC Watch Officer, DOE Ops Center, USDA Ops Center, HHS Ops Center, and Nuclear SSA via email.</br>* * * UPDATE FROM MICHAEL CICCONE TO CHARLES TEAL AT 1330 EDT ON 5/25/14 * * *</br>All EDGs have been secured and offsite power has been restored.</br>The licensee is reporting the loss of two stack radiation monitors - 8168 and 8169. This is reportable under 10CFR50.72(b)(3)(xiii).</br>Notified R1DO (Gray), R1DRA (Lew), NRR EO (Kokajko), IRD MOC (Grant).</br>* * * UPDATE FROM MICHAEL CICCONE TO DANIEL MILLS AT 1548 EDT * * *</br>At 1414 EDT the licensee terminated the Unusual Event.</br>Notified R1DO (Gray), R1DRA (Lew), NRR EO (Kokajko), IRD MOC (Grant), DHS SWO, FEMA Ops Center, NICC Watch Officer, DOE Ops Center, USDA Ops Center, HHS Ops Center, and Nuclear SSA via email.HHS Ops Center, and Nuclear SSA via email.  +
Discovered date
11:02:00, 25 May 2014  +
ENS id number
50,142  +
Emergency class
Unusual Event +
Entered date
07:30:00, 25 May 2014  +
Event date
11:02:00, 25 May 2014  +
Event description
At 0702 EDT on 5/25/14, Millstone Units 2 … At 0702 EDT on 5/25/14, Millstone Units 2 and 3 experienced a loss of offsite power and subsequent trip of both units. An Unusual Event was declared by Millstone Units 2 and 3 at 0715 EDT.</br>Power is currently being supplied to all emergency busses by the emergency diesel generators. Offsite power is not available.</br>At this time, it appears that the loss of offsite power is due to a localized issue in the Millstone switchyard. The surrounding areas were not affected.</br>A decision was made to take the NRC to monitoring mode at 0749 EDT with Region 1 in the lead.</br>Notified DHS SWO, FEMA Ops Center, NICC Watch Officer, DOE Ops Center, USDA Ops Center, HHS Ops Center, and Nuclear SSA via email.</br>* * * UPDATE FROM MICHAEL CICCONE TO CHARLES TEAL AT 1330 EDT ON 5/25/14 * * *</br>All EDGs have been secured and offsite power has been restored.</br>The licensee is reporting the loss of two stack radiation monitors - 8168 and 8169. This is reportable under 10CFR50.72(b)(3)(xiii).</br>Notified R1DO (Gray), R1DRA (Lew), NRR EO (Kokajko), IRD MOC (Grant).</br>* * * UPDATE FROM MICHAEL CICCONE TO DANIEL MILLS AT 1548 EDT * * *</br>At 1414 EDT the licensee terminated the Unusual Event.</br>Notified R1DO (Gray), R1DRA (Lew), NRR EO (Kokajko), IRD MOC (Grant), DHS SWO, FEMA Ops Center, NICC Watch Officer, DOE Ops Center, USDA Ops Center, HHS Ops Center, and Nuclear SSA via email.HHS Ops Center, and Nuclear SSA via email.  +
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 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +, ENS 50142 +  and ENS 50142 +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 25 May 2014  +
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>.
01:50:43, 2 March 2018  +
NRC officer
Donald Norwood +
Notification date
07:30:00, 25 May 2014  +
Originated by
Mike Ciccone +
Person
Daniel Mills +  and Charles Teal +
Reactor critical
true  +
Reactor type
CE +
Region
NRC Region 1 +
Reporting criterion
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration +, 10 CFR 50.72(b)(3)(iv)(A), System Actuation +  and 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness +
Reporting time
-0.147 d (-3.53 hours, -0.021 weeks, -0.00484 months)  +
Site
Millstone +
Start date
11:02:00, 25 May 2014  +
State
Connecticut +
System
Emergency Diesel Generator +
Title
Unusual Event Due to Loss of Offsite Power  +
Topic
Loss of Offsite Power +
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.
http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2014/20140527en.html#en50142  +
Unit
2  +
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