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 | | cfr = 10 CFR 50.72(b)(2)(i) | ||
| emergency class = | | 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. | 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 | ||
}} | }} | ||
{{ENS-Nav}}[[Category:Power Reactor]] | {{ENS-Nav}}[[Category:Power Reactor]] |
Latest revision as of 12:55, 15 January 2021
Where | |
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Diablo Canyon ![]() 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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