ENS 55693
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ENS Event | |
---|---|
00:37 Jan 7, 2022 | |
Title | Shutdown Initiated in Accordance with Technical Specifications |
Event Description | On January 6, 2022 at 1937 [EST], St Lucie Unit 2 commenced a reactor shutdown as required by Technical Specification 3.1.3.1 Action 'e', due to Control Element Assembly number 27 slipping from 133 inches to 120 inches withdrawn and unable to be recovered within the prescribed time limits.
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: Unit 2 entered 6 hour6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> LCO to shutdown to mode 3 at 1539 EST as required by Technical Specification 3.1.3.1 Action 'e'. There was no impact on Unit 1. |
Where | |
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Saint Lucie ![]() Florida (NRC Region 2) | |
Reporting | |
10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
Time - Person (Reporting Time:+-3.77 h-0.157 days <br />-0.0224 weeks <br />-0.00516 months <br />) | |
Opened: | Stacey Dyer 20:51 Jan 6, 2022 |
NRC Officer: | Thomas Kendzia |
Last Updated: | Jan 6, 2022 |
55693 - NRC Website
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Unit 2 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (68 %) |
After | Power Operation (35 %) |
WEEKMONTHYEARENS 556932022-01-07T00:37:0007 January 2022 00:37:00
[Table view]10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Shutdown Initiated in Accordance with Technical Specifications ENS 521382016-08-01T07:42:0001 August 2016 07:42:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Plant Shutdown Due to Pressure Boundary Leakage Greater than Allowable Limit ENS 509772015-04-12T01:00:00012 April 2015 01:00:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to Safety Injection Tank Outlet Piping Leak ENS 503102014-07-25T15:29:00025 July 2014 15:29:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown, 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Technical Specification Required Shutdown Due to a Safety Injection Valve Defect ENS 444852008-09-14T06:41:00014 September 2008 06:41:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Dropped Control Element Resulting in Entry Into Technical Specification Required Shutdown Lco ENS 438712007-12-28T09:50:00028 December 2007 09:50:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown - Dropped Cea ENS 420522005-10-12T18:40:00012 October 2005 18:40:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Shutdown Based on Loss of Two Channels of Containment Isolation Radiation Monitor 2022-01-07T00:37:00 | |
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