ENS 49715
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ENS Event | |
|---|---|
17:00 Jan 11, 2014 | |
| Title | Plant Shutdown Required by Technical Specifications |
| Event Description | On January 10, 2014, at 0919 CST, the plant voluntarily entered multiple required action statements in Technical Specifications 3.3.1 Reactor Trip System Instrumentation and 3.3.2 Engineered Safety Feature Actuation System to conduct surveillance testing of the B-train Solid State Protection System (SSPS). During testing, abnormal indications were received. As a result of the abnormal indications, the SSPS has not been returned to operable status within the required completion time of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. At 1100 CST on January 11, 2014, Unit 2 commenced a plant shutdown required by technical specifications and will be in Mode 3 by 1519. Therefore, this is reportable under 10 CFR 50.72(b)(2)(i), plant shutdown required by technical specifications.
The NRC Resident Inspector has been notified. |
| Where | |
|---|---|
Farley  Alabama (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
| Time - Person (Reporting Time:+-3.6 h-0.15 days <br />-0.0214 weeks <br />-0.00493 months <br />) | |
| Opened: | John Andrews 13:24 Jan 11, 2014 |
| NRC Officer: | Nestor Makris |
| Last Updated: | Jan 11, 2014 |
| 49715 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (51 %) |
WEEKMONTHYEARENS 523742016-11-18T00:59:00018 November 2016 00:59:00
[Table view]10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Initiated ENS 510472015-05-07T10:09:0007 May 2015 10:09:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Shutdown Due to Reactor Coolant Pump Trip ENS 497152014-01-11T17:00:00011 January 2014 17:00:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Plant Shutdown Required by Technical Specifications ENS 481402012-07-27T02:51:00027 July 2012 02:51:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Tech Spec Required Shutdown for Diesel Maintenance Exceeding Allowed Outage Time ENS 461752010-08-15T05:45:00015 August 2010 05:45:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Ts Required Shutdown Entered Due to High Containment Temperature ENS 443582008-07-22T01:58:00022 July 2008 01:58:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Loss of Accident Mitigation Capabilities Due to Two Emergency Diesel Generators Out of Service ENS 426742006-06-30T13:19:00030 June 2006 13:19:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Main Steam Isolation Valve Stuck During Testing 2016-11-18T00:59:00 | |
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