ENS 48945
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ENS Event | |
|---|---|
03:12 Apr 19, 2013 | |
| Title | Inadvertent Activation of an Emergency Siren |
| Event Description | On 4/18/13 at 2312 EDT, Emergency Siren 955 inadvertently actuated for approximately 5 minutes. The cause of the actuation is under investigation but believed to be due to rain water intrusion. The siren stopped on its own, and was subsequently disconnected by the siren vendor to prevent further erroneous actuation. The siren remains out service and is the only siren out of service within the 10 mile Emergency Planning Zone (EPZ). There are a total of 70 sirens.
The siren is located in a state park not currently inhabited by campers; due to the siren location and time of activation the impact on the surrounding population was minimal. The event was therefore determined to not be reportable. A subsequent review of the event, considering communications made between Cook Nuclear Plant and the Berrien County 911 Dispatch Center, as well as recent industry operating experience of similar events, was performed; its conclusion was to conservatively make a report under 10 CFR 50.72(b)(2)(xi). The licensee has notified the NRC Resident Inspector. |
| Where | |
|---|---|
Cook  Michigan (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+9.3 h0.388 days <br />0.0554 weeks <br />0.0127 months <br />) | |
| Opened: | Randy Rose 12:30 Apr 19, 2013 |
| NRC Officer: | Charles Teal |
| Last Updated: | Apr 19, 2013 |
| 48945 - NRC Website | |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 547292020-05-27T13:12:00027 May 2020 13:12:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Actuation of Sirens ENS 540362019-04-30T00:29:00030 April 2019 00:29:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Spurious Actuation of an Emergency Siren ENS 529672017-09-13T04:47:00013 September 2017 04:47:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Due to Letdown Relief Valve Discharge to the Pressurizer Relief Tank ENS 525852017-03-01T18:03:0001 March 2017 18:03:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification of Offsite Agencies Due to Sulfuric Acid Leak within the D.C. Cook Protected Area ENS 520652016-07-06T04:38:0006 July 2016 04:38:00 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(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Manual Reactor Trip and Unusual Event Declaration Due to Steam Leak in Turbine Building ENS 518592016-04-08T22:20:0008 April 2016 22:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Oil Leak in a Switchyard Transformer Oil System ENS 508222015-02-13T18:15:00013 February 2015 18:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Michigan Osha ENS 506972014-12-20T17:12:00020 December 2014 17:12:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Oil Leak from Main Turbine Lube Oil System ENS 504982014-09-28T12:30:00028 September 2014 12:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Activation of an Emergency Siren ENS 504622014-09-16T19:19:00016 September 2014 19:19:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notifications and Press Release Regarding Onsite Fatality ENS 503862014-08-21T06:10:00021 August 2014 06:10:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Suspected Fuel Oil Leak to the Environment ENS 501882014-06-11T03:27:00011 June 2014 03:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to an Inadvertent Activation of an Emergency Siren ENS 493642013-09-20T02:30:00020 September 2013 02:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to an Inadvertent Activation of an Emergency Siren ENS 489452013-04-19T03:12:00019 April 2013 03:12:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Activation of an Emergency Siren ENS 487472013-02-12T20:30:00012 February 2013 20:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification of Offsite Agencies Due to Discovery of Potential Human Remains ENS 487312013-02-07T22:35:0007 February 2013 22:35:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Related to Death of Contractor Onsite ENS 478642012-04-26T02:46:00026 April 2012 02:46:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification to Offsite Agencies Due to Oil Spill ENS 471942011-08-23T18:24:00023 August 2011 18:24:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of an Unusual Event Due to a Seismic Event ENS 462342010-09-08T11:47:0008 September 2010 11:47:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Body Discovered in the Owner Controlled Area ENS 460372010-06-23T18:28:00023 June 2010 18:28:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Declaration of Unusual Event Due to Seismic Event ENS 441472008-04-18T10:02:00018 April 2008 10:02:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Seismic Activity 2020-05-27T13:12:00 | |
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