ENS 46943
ENS Event | |
|---|---|
19:22 Jun 9, 2011 | |
| Title | Inadvertent Siren Activation Due to Lightning Strike |
| Event Description | This siren affects both Dresden and Braidwood Stations. This notification is for both sites.
At approximately 1422 [CDT] on June 9, 2011, a Grundy County representative notified Exelon of an inadvertent siren activation. The Exelon representative contacted the siren contractor at 1423 [CDT] inquiring about siren activity in the shared Braidwood/Dresden Emergency Planning Zones. Upon review and polling of the system at 1444 [CDT], siren BD11 was identified in the area of concern with a communication failure. The siren contractor was immediately dispatched and arrived at the siren location at approximately 1520 [CDT]. Upon arrival, the siren was not sounding and significant damage was identified, which was indicative of a direct lightning strike. The siren was declared out of service and repairs will begin on June 10th. This condition is reportable under 10CFR50.72(b)(2)(xi) - News release or notification of other governmental agency. The licensee notified the NRC Resident Inspector and Grundy County local authorities. See Braidwood Event #46942 concerning same event. |
| Where | |
|---|---|
Dresden  Illinois (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-0.18 h-0.0075 days <br />-0.00107 weeks <br />-2.46564e-4 months <br />) | |
| Opened: | Dennis Francis 19:11 Jun 9, 2011 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Jun 9, 2011 |
| 46943 - 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 557212022-02-01T16:25:0001 February 2022 16:25:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Siren Actuations ENS 553962021-08-03T20:39:0003 August 2021 20:39:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Inadvertent Siren Actuation ENS 543582019-10-29T14:19:00029 October 2019 14:19:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Actuation of Sirens ENS 531982018-02-07T16:40:0007 February 2018 16:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Emergency Notification Sirens Inadvertently Actuated ENS 519132016-05-08T04:50:0008 May 2016 04:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Reporting That Site Was Notified of Siren Sounding ENS 515092015-10-30T19:29:00030 October 2015 19:29:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Lost of Lift Station Power ENS 501802014-06-08T21:15:0008 June 2014 21:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Tritium Discovered in Onsite Well ENS 484262012-10-20T16:00:00020 October 2012 16:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Potential Inadvertent Release of Tritium ENS 483612012-10-01T00:30:0001 October 2012 00:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Fire in the Maintenance Building ENS 470922011-07-24T18:05:00024 July 2011 18:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Extended Emergency Siren Activation During Testing ENS 469432011-06-09T19:22:0009 June 2011 19:22:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Siren Activation Due to Lightning Strike ENS 466362011-02-22T17:20:00022 February 2011 17:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Noncompliant Partial Lake Bypass Operation ENS 451162009-06-06T20:22:0006 June 2009 20:22:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Made Due to Elevated Levels of Tritium ENS 445272008-09-29T15:09:00029 September 2008 15:09:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Discharge of Oil Into Navigable Waters ENS 408812004-07-19T23:04:00019 July 2004 23:04:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Recovery of Drowning Victim on Owner Controlled Property 2022-02-01T16:25:00 | |