ENS 42749
ENS Event | |
|---|---|
04:06 Aug 2, 2006 | |
| Title | Loss of All Off Site Emergency Notification Sirens |
| Event Description | On August 2, 2006 at approximately 0006 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, the Emergency Planning Department determined that all of the 156 sirens in the Indian Point Energy Center, Emergency Planning Zone were unavailable due to, an inability to activate the sirens through the computer operating system. In accordance with the Indian Point reporting criteria, the loss of 16 or more sirens that cannot be returned to service in one hour, constitutes a major loss of the offsite notification capability that requires an 8-hour non-emergency notification in accordance with 10CFR 50.72(b)(3)(xiii).
The Emergency Plan has route alerting and public radio announcement available as necessary to notify the public in lieu of the non-operational sirens. The condition was recorded in the IPEC Corrective Action Program as CR# 1P2-2006-04625 and actions have been initiated to investigate and correct the condition. Troubleshooting continues. The cause of failure is still unknown at this time. The licensee notified the NRC Resident Inspector, state, and local agencies of this event.
Update to the initial notification provided at 0449 hours0.0052 days <br />0.125 hours <br />7.423942e-4 weeks <br />1.708445e-4 months <br /> on August 2, 2006, regarding the inability to activate the 156 sirens of the Indian Point Entergy Center (IPEC) offsite Emergency Notification System (ENS) through its computer operating system. The capability to activate the IPEC ENS was returned to service at 0635 hours0.00735 days <br />0.176 hours <br />0.00105 weeks <br />2.416175e-4 months <br />. The total time the ENS sirens were unavailable was approximately 6 1/2 hours. During the event, route alerting and public radio announcement was available as necessary to notify the public. Troubleshooting identified two problems; a hardware problem with drive failures, and a problem with the computer system where the Oracle database control file synchronism failed. These failures resulted in the inability of the ENS computer system to connect to the Oracle database which prevented ENS from being activated. The computer drives were replaced and operating system data file error corrected. Troubleshooting is continuing to identify the cause. The IPEC Corrective Action Program recorded the event as CR-IP2-2006-04625 and will identify any additional corrective actions to prevent recurrence. The licensee notified the NRC Resident Inspector, state, and local agencies of this event. Notified R1 DO (P. Finney), DRP (N. Mamish) and OPA (D. McIntyre). |
| Where | |
|---|---|
Indian Point  New York (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+0.72 h0.03 days <br />0.00429 weeks <br />9.86256e-4 months <br />) | |
| Opened: | Nick Lizzo 04:49 Aug 2, 2006 |
| NRC Officer: | Jason Kozal |
| Last Updated: | Aug 2, 2006 |
| 42749 - NRC Website | |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Unit 3 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 485482012-12-01T19:00:0001 December 2012 19:00:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tsc Ventilation Not Able to Direct Airflow to the Charcoal Filter ENS 479392012-05-21T19:30:00021 May 2012 19:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tsc Temporarily Out of Service for Planned Maintenance ENS 469612011-06-15T19:30:00015 June 2011 19:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Event Notification System Phone Inoperable ENS 469462011-06-10T15:45:00010 June 2011 15:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Non-Functional Due to Malfunctioning Ventilation System ENS 465932011-02-04T21:00:0004 February 2011 21:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Response Data System Due to Planned Replacement of Plant Process Computer ENS 460922010-07-14T11:20:00014 July 2010 11:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Power Lost to the Emergency Operations Facility ENS 457182010-02-23T06:00:00023 February 2010 06:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Erds Not Availble Due to Plant Computer Malfunction ENS 453542009-09-16T14:36:00016 September 2009 14:36:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Sirens Out of Service ENS 440482008-03-09T00:37:0009 March 2008 00:37:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Power to Off-Site Emergency Sirens ENS 433672007-05-16T20:55:00016 May 2007 20:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of 26 Emergency Sirens Due to Severe Weather ENS 428492006-09-19T16:08:00019 September 2006 16:08:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of All Emergency Sirens for Greater than One Hour ENS 427492006-08-02T04:06:0002 August 2006 04:06:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of All Off Site Emergency Notification Sirens ENS 423962006-03-08T15:30:0008 March 2006 15:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Offsite Communications - Sirens in Emergency Planning Zone ENS 422692006-01-18T17:45:00018 January 2006 17:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Response Capability Due to Weather ENS 422662006-01-18T13:48:00018 January 2006 13:48:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Power to Off-Site Emergency Sirens ENS 418512005-07-19T06:00:00019 July 2005 06:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Siren Power ENS 417342005-05-28T17:05:00028 May 2005 17:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Failure of the Plant Integrated Computer System (Pics) ENS 411742004-11-05T12:05:0005 November 2004 12:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergnecy Sirens Found Inoperable Due to Equipment Malfunction ENS 400782003-08-15T14:15:00015 August 2003 14:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Power Lost to Emergency Sirens. 2012-05-21T19:30:00 | |