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ENS 56176
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Category
ENS Notification  and Power Reactor
ASME section
ASME Section XI +
CFR
10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded +  and 10 CFR 50.72#b3iiA +
Current power
0  +
Current reactor mode
Refueling +
Description
The following information was provided by … The following information was provided by the licensee via email:</br>At 0830 PDT on 10/23/2022, during routine outage inspections on Unit 2, it was determined that the RCS Pressure Boundary did not meet ASME Section XI acceptance criteria on a 2-inch vacuum refill connection line. This event is being reported pursuant to 10 CFR 50.72(b)(3)(ii)(A).</br>There was no impact on the health and safety of the public or plant personnel. </br>The NRC Resident Inspector has been notified. NRC Resident Inspector has been notified.  +
Discovered date
15:30:00, 23 October 2022  +
Emergency class
Non Emergency +
Entered date
19:05:00, 23 October 2022  +
Event date
15:30:00, 23 October 2022  +
Event description
The following information was provided by … The following information was provided by the licensee via email:</br>At 0830 PDT on 10/23/2022, during routine outage inspections on Unit 2, it was determined that the RCS Pressure Boundary did not meet ASME Section XI acceptance criteria on a 2-inch vacuum refill connection line. This event is being reported pursuant to 10 CFR 50.72(b)(3)(ii)(A).</br>There was no impact on the health and safety of the public or plant personnel. </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 56176 +, ENS 56176 +, ENS 56176 +, ENS 56176 +, ENS 56176 +, ENS 56176 +, ENS 56176 +, ENS 56176 +, ENS 56176 +, ENS 56176 +, ENS 56176 +, ENS 56176 +, ENS 56176 +  and ENS 56176 +
Initial power
0  +
Initial reactor mode
Refueling +
Last update date
00:00:00, 23 October 2022  +
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, 25 October 2022  +
NRC officer
Adam Koziol +
Notification date
19:05:00, 23 October 2022  +
Originated by
Brian Engleton +
Reactor critical
false  +
Reactor scram
false  +
Reactor type
Westinghouse PWR 4-Loop +
Region
NRC Region 4 +
Reporting criterion
10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded +
Reporting time
0.149 d (3.58 hours, 0.0213 weeks, 0.0049 months)  +
Site
Diablo Canyon +
Start date
15:30:00, 23 October 2022  +
State
California +
System
Reactor Coolant System +
Title
Reactor Coolant System (RCS) Pressure Boundary Degradation  +
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/2022/20221025en.html#en56176  +
Unit
2  +
 
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