ENS 49832
ENS Event | |
---|---|
17:16 Feb 16, 2014 | |
Title | Unit 2 Experienced a Partial Loss of Offsite Power with Autostart of Division I and III Edgs |
Event Description | An automatic initiation of Emergency Diesel Generators was received due to a loss of one of two off-site power sources.
On February 16, 2014 at 1216 [EST], Nine Mile Point Unit 2 experienced an automatic initiation of the Division 1 and 3 Emergency Diesel Generators [EDGs] due to a loss of Line 5. Line 5 is one of the two 115KV offsite power sources. Line 5 was lost due to an offsite event that is currently being evaluated by the grid operator. During the electrical transient, Nine Mile Point Unit 2 also experienced a feedwater level control lockup, requiring manual control. No Emergency Core Cooling Systems actuated, and feedwater level control was returned to automatic. Nine Mile Point Unit 2 remained at 100% power during the loss of Line 5, one of the offsite power sources. The NRC resident has been notified. The licensee also notified the State of New York. Unit 2 is currently in a 24-hour Technical Specification Limiting Condition of Operation [TS LCO] Action Statement 3.8.1.A3. Once Division III is realigned to the "B" side Line 6 offsite power, Unit 2 will be in a 72-hour LCO. Both EDGs are currently running. There was no effect on Unit 1.
In addition to the initiation of Division 1 and 3 Emergency Diesel Generators, Service Water Radiation Monitor 2SWP*RE146A and Radwaste/Reactor Building Vent Gaseous Effluent Monitoring Systems were also lost. Compensatory actions were established as required by station procedures and the Offsite Dose Calculation Manual. The loss of these instruments is reportable as a major loss of Emergency Assessment Capability per 10CFR50.72(b)(3)(xiii). The Service Water Radiation Monitor 2SWP*RE146A was restored to service on February 16, 2014 at 1450 EST. The Radwaste/Reactor Building Vent Gaseous Effluent Monitoring Systems were restored to service on February 17, 2014 at 0240. It is recognized that this notification is not within eight hours of the event. Line 5 is restored to OPERABLE February 17, 2014 at 1628. The NRC Resident Inspector has been informed of this additional reportable condition [and the update on the lost off-site power source]. The condition has been entered into the corrective action program. The licensee also notified the State of New York Public Service Commission. The licensee exited the 72-hour LCO for the lost off-site power at 1628 on February 17, 2014. Notified R1DO(Krohn), NRREO (Monninger) and ILTAB (Whitney). |
Where | |
---|---|
Nine Mile Point New York (NRC Region 1) | |
Reporting | |
10 CFR 50.72(b)(3)(iv)(A), System Actuation 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
Time - Person (Reporting Time:+1.08 h0.045 days <br />0.00643 weeks <br />0.00148 months <br />) | |
Opened: | Carl Jones 18:21 Feb 16, 2014 |
NRC Officer: | Steve Sandin |
Last Updated: | Feb 17, 2014 |
49832 - NRC Website
Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 49832\u003C/a\u003E - \u003Ca href=\"/Nine_Mile_Point\" title=\"Nine Mile Point\"\u003ENine Mile Point\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EUnit 2 Experienced a Partial Loss of Offsite Power with Autostart of Division I and III Edgs\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 49832 - Nine Mile Point\n","link":"","lat":43.52021388888889,"lon":-76.40656388888888,"icon":"/w/images/b/be/Constellation_icon.png"}],"imageoverlays":null} | |
Unit 2 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Nine Mile Point with 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
WEEKMONTHYEARENS 573342024-09-23T11:20:00023 September 2024 11:20:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge Automatic Reactor Scram Due Turbine Trip ENS 570042024-03-04T00:42:0004 March 2024 00:42:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Automatic Reactor Scram Due to Main Turbine Trip on LOW Condenser Vacuum ENS 567102023-09-02T10:32:0002 September 2023 10:32:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge Automatic Reactor Scram Due to Feedwater Transient ENS 563592023-02-06T11:30:0006 February 2023 11:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications and Assessment Capabilities ENS 560892022-09-04T20:39:0004 September 2022 20:39:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation Specified System Activation ENS 558212022-04-05T06:23:0005 April 2022 06:23:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge Scram on LOW Level ENS 540352019-04-29T20:33:00029 April 2019 20:33:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Manual Reactor Scram Due to Power Oscillations and High Pressure Coolant Injection System Initiation ENS 539982019-04-14T04:03:00014 April 2019 04:03:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Automatic Reactor Scram and Specified System Actuation ENS 533952018-05-10T06:48:00010 May 2018 06:48:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation Valid Emergency Diesel Start on Partial Loss of Offsite Power ENS 529502017-09-06T15:57:0006 September 2017 15:57:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Automatic Reactor Scram on Low Reactor Vessel Water Level ENS 524252016-12-10T13:48:00010 December 2016 13:48:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Manual Reactor Scram Due to High Main Turbine Vibrations ENS 520962016-07-18T11:30:00018 July 2016 11:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Offsite Communications Capability ENS 513692015-09-04T13:16:0004 September 2015 13:16:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Unplanned Automatic Scram and Specified System Actuations Due to Msiv Closure ENS 502162014-06-20T05:10:00020 June 2014 05:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Radiation Monitors Declared Non-Functional ENS 501302014-05-22T06:10:00022 May 2014 06:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unplanned Isolation of Reactor Building Ventilation Radiation Monitor ENS 499962014-04-04T12:00:0004 April 2014 12:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Wide Range Gaseous Monitoring System Removed from Service for Greater than 72 Hours ENS 499482014-03-24T04:31:00024 March 2014 04:31:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Secondary Containment Inoperable and Unplanned Isolation of the Reactor Building Vent Radiation Monitor ENS 499062014-03-12T18:22:00012 March 2014 18:22:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Secondary Containment Inoperable and Unplanned Isolation of Building Vent Radiation Monitor ENS 498682014-03-04T06:43:0004 March 2014 06:43:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unit 2 Manual Reactor Scram Following Loss of a Uninterruptible Power Supply (Ups) ENS 498322014-02-16T17:16:00016 February 2014 17:16:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unit 2 Experienced a Partial Loss of Offsite Power with Autostart of Division I and III Edgs ENS 497952014-02-05T15:00:0005 February 2014 15:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tone Alert Systems Out of Service ENS 495502013-11-18T10:12:00018 November 2013 10:12:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Communications Loss to New York State Watch Tower ENS 494812013-10-29T09:56:00029 October 2013 09:56:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unplanned Loss of Ten Area Radiation Monitors Impacting Emergency Assessment Capability ENS 494182013-10-08T02:04:0008 October 2013 02:04:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Service Water Radiation Monitor Out of Service ENS 493912013-09-28T16:13:00028 September 2013 16:13:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Digital Radiation Monitor Low Sample Flow Alarm Received ENS 491762013-07-07T08:00:0007 July 2013 08:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Radwaste/Reactor Building Vent Gaseous Effluent Radiation Monitoring Capability ENS 491272013-06-17T16:27:00017 June 2013 16:27:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Radwaste / Reactor Building Vent Gaseous Effluent Radiation Monitoring Capability ENS 490942013-06-06T07:11:0006 June 2013 07:11:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Service Water Radiation Monitor Removed from Service for Maintenance ENS 490692013-05-26T22:39:00026 May 2013 22:39:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tone Alert Radios Out of Service ENS 489572013-04-23T07:30:00023 April 2013 07:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness State Notification Line Outage ENS 489012013-04-09T06:35:0009 April 2013 06:35:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Power Lost to Meteorological Instrumentation ENS 485902012-12-13T21:30:00013 December 2012 21:30:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to Primary Containment System Declared Inoperable ENS 484812012-11-06T05:06:0006 November 2012 05:06:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation High Pressure Coolant Injection Actuation Signal ENS 484772012-11-03T12:23:0003 November 2012 12:23:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Automatic Scram on Low Reactor Water Level ENS 484562012-10-30T01:00:00030 October 2012 01:00:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation Automatic Initiation of Emergency Diesel Generator Due to Loss of One Off-Site Power Source ENS 484532012-10-29T04:00:00029 October 2012 04:00:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Rps Actuation While Critical Due to Generator Load Reject ENS 483232012-09-20T13:23:00020 September 2012 13:23:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Automatic Scram and High Pressure Coolant Injection System Initiation ENS 481102012-07-17T15:18:00017 July 2012 15:18:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Automatic Reactor Scram Due to High Neutron Flux ENS 479102012-05-08T15:14:0008 May 2012 15:14:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service ENS 477882012-03-30T02:42:00030 March 2012 02:42:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Tone Alert System ENS 477432012-03-14T17:05:00014 March 2012 17:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of the Tone Alert Radio System ENS 477182012-03-05T17:36:0005 March 2012 17:36:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Tone Alert Radio System ENS 473312011-10-07T17:20:0007 October 2011 17:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications Systems Due to Cut Fiber Optic Cable ENS 468082011-05-03T00:51:0003 May 2011 00:51:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Automatic Reactor Scram ENS 466672011-03-11T01:15:00011 March 2011 01:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Primary and Backup Meterological Monitoring Equipment on Both Towers ENS 466302011-02-20T13:53:00020 February 2011 13:53:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tone Alert Radio Emergency Notification System Out of Service ENS 466262011-02-19T05:50:00019 February 2011 05:50:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System Inoperable Due to Plant Computer Problem ENS 464562010-12-04T16:42:0004 December 2010 16:42:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tone Alert Emergency Notification System Inoperable ENS 464092010-11-10T15:56:00010 November 2010 15:56:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Unplanned Automatic Scram and High Pressure Coolant Injection System Initiation During Testing ENS 463472010-10-20T01:08:00020 October 2010 01:08:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Failure of Plant Process Computer Displays and Spds to Update ENS 462482010-09-13T14:31:00013 September 2010 14:31:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Scheduled Telephone Cable Rerouting Impacts to the Control Room and Technical Support Center ENS 455032009-11-17T22:40:00017 November 2009 22:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of National Weather Service Tone Alert Radio System ENS 454122009-10-05T15:58:0005 October 2009 15:58:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Manual Scram and High Pressure Coolant Injection Following a Loss of Feedwater Level Control ENS 453232009-09-02T12:30:0002 September 2009 12:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Spds Computer ENS 451572009-06-24T04:00:00024 June 2009 04:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Tone Alert Radios ENS 450312009-04-29T23:38:00029 April 2009 23:38:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tone Alert Radios Out of Service ENS 449822009-04-10T09:38:00010 April 2009 09:38:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation High Pressure Coolant Injection Automatic Initiation Due to Turbine Trip ENS 449232009-03-21T05:21:00021 March 2009 05:21:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation High Pressure Coolant Injection System Initiation Following Planned Manual Scram ENS 448272009-02-03T18:37:0003 February 2009 18:37:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System Inoperable ENS 447472009-01-01T05:42:0001 January 2009 05:42:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System Inoperable ENS 446862008-11-26T18:06:00026 November 2008 18:06:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Communications Lines ENS 445982008-10-24T01:26:00024 October 2008 01:26:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Manual Reactor Scram Due to Loss of the Electronic Pressure Regulator ENS 444912008-09-15T04:00:00015 September 2008 04:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Notification Sirens Due to High Winds ENS 443872008-08-06T22:40:0006 August 2008 22:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System Assessment Lost ENS 442062008-05-13T12:25:00013 May 2008 12:25:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Unusual Event Declared Due to Loss of Offsite Power ENS 437102007-10-11T05:00:00011 October 2007 05:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tone Alert Radio System Out of Service for Maintenance ENS 434512007-06-27T14:15:00027 June 2007 14:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications Capability at Eof ENS 434032007-06-04T10:55:0004 June 2007 10:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Partial Loss of the Public Prompt Notification System ENS 431442007-02-05T09:30:0005 February 2007 09:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Stack Effluent Monitoring Capability ENS 431252007-01-26T18:54:00026 January 2007 18:54:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Capability to Determine Stack Effluent Radioactivity Release Has Been Lost. ENS 426332006-06-12T17:02:00012 June 2006 17:02:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation Hpci Inititation Signal Due to Turbine Trip Signal During Startup ENS 420802005-10-26T07:33:00026 October 2005 07:33:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of the Tone Alert Prompt Notification System for Greater than One Hour ENS 419272005-08-18T13:49:00018 August 2005 13:49:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Automatic Scram Due to Loss of a Power Board ENS 416772005-05-07T07:41:0007 May 2005 07:41:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Service to Tone Alert System ENS 415842005-04-10T10:00:00010 April 2005 10:00:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation Scram Signal Resulting from Failure of a Supply Valve to the Scram Air Header ENS 414342005-02-23T14:00:00023 February 2005 14:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Power Loss and Restored to Tone Alert Radio Notification System ENS 412602004-12-14T23:43:00014 December 2004 23:43:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Oswego County Prompt Notification System Out of Service for Greater than One Hour ENS 410932004-10-05T16:53:0005 October 2004 16:53:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tone Alert Notification System for Oswego County Was Determined to Be Out of Service. ENS 409982004-08-30T12:35:00030 August 2004 12:35:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Unit 1 Manually Scrammed Due to Oscillating Reactor Vessel Water Level ENS 407192004-05-02T06:17:0002 May 2004 06:17:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Manual Scram Due to Rising Torus Temperature Due to Stuck Open Erv ENS 406842004-04-18T22:30:00018 April 2004 22:30:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation Residual Heat Removal System Isolation Due to a Rise in Reactor Pressure ENS 403222003-11-14T02:49:00014 November 2003 02:49:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation Loss of 115 Kv Line Results in Emergency Diesel Generator Auto-Start ENS 402882003-11-02T23:30:0002 November 2003 23:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Notification Tone Alert Radios Out of Service/Restored to Service ENS 402512003-10-16T03:02:00016 October 2003 03:02:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Prompt Notification System (Pns) Sirens Exceeded Allowable Out of Service Time. 2024-09-23T11:20:00 | |