ENS 41851
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ENS Event | |
|---|---|
06:00 Jul 19, 2005 | |
| Title | Loss of Emergency Siren Power |
| Event Description | On July 19, 2005, at approximately 0650 hours0.00752 days <br />0.181 hours <br />0.00107 weeks <br />2.47325e-4 months <br />, it was determined that of all of the Indian Point Energy Center emergency sirens were out of service and had been out of service since approximately 0200 on July 19, 2005. This results in a degraded emergency siren notification system which is reportable under 10 CFR 50.72(b)(3)(xiii). Both Units 2 and 3 were at 100 percent power and remain at 100 percent power. The loss of sirens was caused by a loss of power to the main radio transmitter. The loss of normal power is still under investigation. The loss of emergency backup occurred when the non-safety related backup diesel tripped. The transmitter remained operable on the backup battery supply until it was expended. Immediate corrective action was completed at approximately 0745 by restoring backup battery power and verification of system operability, (two sirens remain inoperable). Availability of battery power will be assured until corrective action to restore normal power is complete. The loss of the [non-safety related backup] diesel is being investigated.
The emergency plan has route alerting and public radio announcements available as necessary to notify the public in lieu of the non-operational sirens. The counties and state were notified of the loss of sirens and restoration. The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Indian Point  New York (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+3.7 h0.154 days <br />0.022 weeks <br />0.00507 months <br />) | |
| Opened: | Stephen Prussman 09:42 Jul 19, 2005 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Jul 19, 2005 |
| 41851 - 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 | |
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