ENS 44036: Difference between revisions

Latest revision as of 22:14, 1 March 2018

v t e ENS Event
06:00 Mar 5, 2008
Title	Fifteen Emergency Sirens Inoperable for a Time
Event Description	On March 5, 2008, at 1312 CST, fifteen (15) emergency notification system sirens in the Fort Calhoun Station Emergency Planning Zone (eleven in Harrison County, Iowa, four in Pottawattamie County, Iowa) were de-energized due to a un-planned power outage. The loss of AC Power to these emergency notification sirens impacted 15 of 101 total sirens; 8 of which had DC Battery Backup Power. As a result, this event is being reported under 10 CFR 50.72 (b)(3)(xiii) and guidance in NUREG-1022 as a major loss of off-site communications capability (e.g. offsite notification system). Power was restored to 8 sirens, 4 in Harrison County and all 4 from Pottawattamie County on March 5, 2008 at 1413 hours0.0164 days <br />0.393 hours <br />0.00234 weeks <br />5.376465e-4 months <br />. One siren in Harrison County was restored at 1417 hours0.0164 days <br />0.394 hours <br />0.00234 weeks <br />5.391685e-4 months <br />. The remaining 6 sirens were restored at 1529 hours0.0177 days <br />0.425 hours <br />0.00253 weeks <br />5.817845e-4 months <br />. The power loss was determined to be due to a farm equipment malfunction. The licensee notified the NRC Resident Inspector.

ENS 44036 +/-
Where
Ft Calhoun Nebraska (NRC Region 4)
Reporting

10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
Time - Person (Reporting Time:+14.25 h0.594 days <br />0.0848 weeks <br />0.0195 months <br />)
Opened:	Rayford Reno 20:15 Mar 5, 2008
NRC Officer:	Pete Snyder
Last Updated:	Mar 5, 2008
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v • d • e

v t e Emergency Notification System
Fort Calhoun with 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
WEEKMONTHYEAR2015-04-01T19:40:00 [Table view]
[ENS list for Fort Calhoun]

@@ Line 16: / Line 16: @@
 | event date = 03/05/2008 CST
 | last update date = 03/05/2008
-| title = Fifteen Emergency Sirens Inoperable For A Time
+| title = Fifteen Emergency Sirens Inoperable for a Time
 | event text = On March 5, 2008, at 1312 CST, fifteen (15) emergency notification system sirens in the Fort Calhoun Station Emergency Planning Zone (eleven in Harrison County, Iowa, four in Pottawattamie County, Iowa) were de-energized due to a un-planned power outage.  The loss of AC Power to these emergency notification sirens impacted 15 of 101 total sirens; 8 of which had DC Battery Backup Power.  As a result, this event is being reported under 10 CFR 50.72 (b)(3)(xiii) and guidance in NUREG-1022 as a major loss of off-site communications capability (e.g. offsite notification system).
 Power was restored to 8 sirens, 4 in Harrison County and all 4 from Pottawattamie County on March 5, 2008 at 1413 hours.  One siren in Harrison County was restored at 1417 hours.  The remaining 6 sirens were restored at 1529 hours.  The power loss was determined to be due to a farm equipment malfunction.

Latest revision as of 22:14, 1 March 2018