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ENS 55147
Show incoming properties 
Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +
Current power
0  +
Current reactor mode
Hot Standby +
Description
At 2216 EDT on 3/21/2021, Calvert Cliffs U … At 2216 EDT on 3/21/2021, Calvert Cliffs Unit 2 was manually tripped from 37 percent power due to lowering level in the 21 Steam Generator. All systems responded per design. Main Feedwater was secured and Auxiliary Feedwater was manually initiated. The Site Senior Resident has been notified.</br>The cause of the lowering level in the 21 Steam Generator is under investigation.21 Steam Generator is under investigation.  +
Discovered date
02:16:00, 22 March 2021  +
ENS id number
55,147  +
Emergency class
Non Emergency +
Entered date
23:57:00, 21 March 2021  +
Event date
02:16:00, 22 March 2021  +
Event description
At 2216 EDT on 3/21/2021, Calvert Cliffs U … At 2216 EDT on 3/21/2021, Calvert Cliffs Unit 2 was manually tripped from 37 percent power due to lowering level in the 21 Steam Generator. All systems responded per design. Main Feedwater was secured and Auxiliary Feedwater was manually initiated. The Site Senior Resident has been notified.</br>The cause of the lowering level in the 21 Steam Generator is under investigation.21 Steam Generator is under investigation.  +
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 55147 +, ENS 55147 +, ENS 55147 +, ENS 55147 +, ENS 55147 +, ENS 55147 +, ENS 55147 +, ENS 55147 +, ENS 55147 +, ENS 55147 +, ENS 55147 +, ENS 55147 +, ENS 55147 +  and ENS 55147 +
Initial power
37  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 22 March 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>.
11:30:27, 24 March 2021  +
NRC officer
Jeffrey Whited +
Notification date
23:57:00, 21 March 2021  +
Originated by
Mark Watson +
Reactor critical
false  +
Reactor scram
true  +
Reactor type
CE +
Region
NRC Region 1 +
Reporting criterion
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +
Reporting time
-0.0967 d (-2.32 hours, -0.0138 weeks, -0.00318 months)  +
Scram
Manual Scram +
Site
Calvert Cliffs +
Start date
02:16:00, 22 March 2021  +
State
Maryland +
System
Steam Generator +, Feedwater +  and Auxiliary Feedwater +
Title
Manual Reactor Trip Due to Lowering Steam Generator Level  +
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/2021/20210324en.html#en55147  +
Unit
2  +
 
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