ENS 54524: Difference between revisions

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| unit = 2
| unit = 2
| utype = W-4-LP, W-4-LP
| utype = W-4-LP, W-4-LP
| cfr = 10 CFR 50.72(b)(2)(i), 10 CFR 50.72(b)(3)(ii)(B)
| cfr = 10 CFR 50.72(b)(2)(i)
| emergency class = Non Emergency  
| emergency class = Non Emergency
| notification date = 02/13/2020 17:17
| notification date = 02/13/2020 17:17
| notification by = John Whetsler
| notification by = John Whetsler
Line 17: Line 17:
| last update date = 02/13/2020
| last update date = 02/13/2020
| title = Technical Specification Required Shutdown
| title = Technical Specification Required Shutdown
| event text =
| event text = On February 13, 2020, at 1025 hours [PST], during the performance of the quarterly control rod exercise surveillance test, Shutdown Bank 'B' Group 1 became misaligned greater than 12 steps from its group demand position. In accordance with Technical Specification 3.1.4, 'Rod Group Alignment Limits,' Action D, a Unit 2 shutdown to Mode 3 was commenced at 1233 hours. Investigation into the cause of the rod bank misalignment is in progress.
On February 13, 2020, at 1025 hours [PST], during the performance of the quarterly control rod exercise surveillance test, Shutdown Bank 'B' Group 1 became misaligned greater than 12 steps from its group demand position. In accordance with Technical Specification 3.1.4, 'Rod Group Alignment Limits,' Action D, a Unit 2 shutdown to Mode 3 was commenced at 1233 hours. Investigation into the cause of the rod bank misalignment is in progress.
There is no impact to the health and safety of the public or plant personnel.
 
There is no impact to the health and safety of the public or plant personnel.
The NRC Resident Inspector has been notified.
The NRC Resident Inspector has been notified.
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2020/20200214en.html#en54524
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2020/20200214en.html#en54524
}}{{unit info
| Unit =  2
| type =
| Scram code = 
| Reactor critical =  Y
| Initial power =  100
| Initial reactor mode =  Power Operation
| Current power =  51
| Current reactor mode =  Power Operation
}}
}}


{{ENS-Nav}}[[Category:Power Reactor]]
{{ENS-Nav}}[[Category:Power Reactor]]

Latest revision as of 11:55, 15 January 2021

ENS 54524 +/-
Where
Diablo Canyon Pacific Gas & Electric icon.png
California (NRC Region 4)
Reporting
10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown
Time - Person (Reporting Time:+-1.13 h-0.0471 days <br />-0.00673 weeks <br />-0.00155 months <br />)
Opened: John Whetsler
17:17 Feb 13, 2020
NRC Officer: Kerby Scales
Last Updated: Feb 13, 2020
54524 - NRC Website
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