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ENS 55416
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Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +  and 10 CFR 50.72(b)(3)(iv)(A), System Actuation +
Current power
0  +
Current reactor mode
Hot Standby +
Description
At 1036 CDT on 8/18/2021, Wolf Creek exper … At 1036 CDT on 8/18/2021, Wolf Creek experienced a reactor trip due to low level in B Steam Generator. Auxiliary feedwater system actuated as designed. All systems actuated as expected. Decay heat is currently being removed by the auxiliary feedwater system. The NRC Senior Resident Inspector has been informed.</br>All control rods fully inserted, and offsite power remained available.ted, and offsite power remained available.  +
Discovered date
15:36:00, 18 August 2021  +
ENS id number
55,416  +
Emergency class
Non Emergency +
Entered date
13:51:00, 18 August 2021  +
Equipment trip
Reactor Trip +
Event date
15:36:00, 18 August 2021  +
Event description
At 1036 CDT on 8/18/2021, Wolf Creek exper … At 1036 CDT on 8/18/2021, Wolf Creek experienced a reactor trip due to low level in B Steam Generator. Auxiliary feedwater system actuated as designed. All systems actuated as expected. Decay heat is currently being removed by the auxiliary feedwater system. The NRC Senior Resident Inspector has been informed.</br>All control rods fully inserted, and offsite power remained available.ted, and offsite power remained available.  +
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 55416 +, ENS 55416 +, ENS 55416 +, ENS 55416 +, ENS 55416 +, ENS 55416 +, ENS 55416 +, ENS 55416 +, ENS 55416 +, ENS 55416 +, ENS 55416 +, ENS 55416 +, ENS 55416 +  and ENS 55416 +
Initial power
100  +
Initial reactor mode
Power Operation +
LER
05000482/LER-2021-004, Low Steam Generator Level Due to Main Feedwater Valve Failure Caused Automatic Reactor Trip +  and Low Steam Generator Level Due to Main Feedwater Valve Failure Caused Automatic Reactor Trip +
Last update date
00:00:00, 18 August 2021  +
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>.
20:04:24, 4 January 2024  +
NRC officer
Mike Stafford +
Notification date
13:51:00, 18 August 2021  +
Originated by
Justin Marchant +
Reactor critical
true  +
Reactor type
Westinghouse PWR 4-Loop +
Region
NRC Region 4 +
Reporting criterion
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +  and 10 CFR 50.72(b)(3)(iv)(A), System Actuation +
Reporting time
-0.0729 d (-1.75 hours, -0.0104 weeks, -0.0024 months)  +
Site
Wolf Creek +
Start date
15:36:00, 18 August 2021  +
State
Kansas +
System
Steam Generator +, Auxiliary Feedwater +  and Control Rod +
Title
Automatic Reactor Trip  +
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/2021/20210820en.html#en55416  +
Unit
1  +
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