ENS 50896
ENS Event | |
|---|---|
16:27 Mar 15, 2015 | |
| Title | Plant Shutdown Due to Failure to Restore Containment Fan Cooler Unit |
| Event Description | This 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> notification is being made pursuant to the requirements of 10 CFR 50.72(b)(2)(i), for 'The initiation of any nuclear plant shutdown required by the plant's Technical Specifications'.
Salem Unit 1 has initiated a unit shutdown at 1227 [EDT] in accordance with Technical Specification Action Statement 3.6.2.3, Action A, for inoperability of the 14 Containment Fan Cooler Unit. Technical Specification 3.6.2.3, Action A requires that with one or two Containment Fan Cooler Units inoperable, operability must be restored within 7 days, or be in at least Hot Standby (Mode 3) within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in Cold Shutdown (Mode 5) within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. The 14 Containment Fan Cooler Unit was declared inoperable on March 8, 2015, at 1158 EDT, following a trip of its low speed breaker on thermal overload during a scheduled surveillance test. 13 Chiller is tagged for scheduled maintenance. The NRC Resident Inspector has been notified. Unit 1 is proceeding to Mode 5. There is no effect on Unit 2. The licensee will notify the Lower Alloways Creek Township, the State of New Jersey, and the State of Delaware. |
| Where | |
|---|---|
Salem  New Jersey (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
| Time - Person (Reporting Time:+-2.97 h-0.124 days <br />-0.0177 weeks <br />-0.00407 months <br />) | |
| Opened: | John Konovalchick 13:29 Mar 15, 2015 |
| NRC Officer: | Daniel Mills |
| Last Updated: | Mar 15, 2015 |
| 50896 - NRC Website | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (60 %) |
| After | Power Operation (55 %) |
WEEKMONTHYEARENS 525812017-02-28T15:00:00028 February 2017 15:00:00
[Table view]10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown, 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Technical Specification Shutdown Due to Reactor Coolant System Pressure Boundary Leakage ENS 521292016-07-28T09:41:00028 July 2016 09:41:00 10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Source Range Instruments Reading Improperly During a Reactor Startup ENS 508962015-03-15T16:27:00015 March 2015 16:27:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Plant Shutdown Due to Failure to Restore Containment Fan Cooler Unit ENS 493002013-08-22T20:26:00022 August 2013 20:26:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Unit 1 Commenced a Ts Required Shutdown Due to Unidentified Rcs Leakage > 1 Gpm ENS 478742012-04-30T14:18:00030 April 2012 14:18:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge Unusual Event Due to a Potential Fire in Containment ENS 470522011-07-15T00:53:00015 July 2011 00:53:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Unusual Event Declared Based on Reactor Coolant Leak Greater than 10 Gpm ENS 442052008-05-12T19:00:00012 May 2008 19:00:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Shut Down Initiated Due to Inoperable Steam Generator Flow Channels ENS 416702005-05-06T03:05:0006 May 2005 03:05:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specifications Required Plant Shutdown Began and Then Terminated ENS 416162005-04-20T01:52:00020 April 2005 01:52:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specificiation Required Shutdown Related to Pressure Boundary Leakage ENS 408232004-06-17T04:22:00017 June 2004 04:22:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Tech Spec Required Plant Shutdown Due to Emergency Core Cooling System Inoperable ENS 407872004-06-02T16:30:0002 June 2004 16:30:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Plant Shutdown Was Initiated to Comply with Tech Spec. 3.6.1.1. Primary Containment Integrity. ENS 407642004-05-21T17:15:00021 May 2004 17:15:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Shutdown ENS 402502003-10-15T20:03:00015 October 2003 20:03:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Feedwater Regulating Valve Issue Forces Initiation of Technical Specification Shutdown 2017-02-28T15:00:00 | |