ENS 46542: Difference between revisions

v t e ENS Event
14:40 Jan 14, 2011
Title	Technical Support Center Out of Service Due to Maintenance
Event Description	At 0840 [CST] on Friday, January 14, 2011, a portion of the Duane Arnold Energy Center (DAEC) Technical Support Center (TSC) ventilation was removed from service to conduct maintenance on the charcoal filter medium. The TSC Stand-by Filter Unit (TSC-SFU) was found with deluge water in the bottom of the charcoal filtration bed, and is therefore non-functional. Under certain accident conditions the TSC may become unavailable due to the inability of the ventilation system to maintain a habitable atmosphere. The licensee has notified the NRC Resident Inspector. This notification is being made in accordance with 10 CFR 50.72 (b) (3) (xiii) due to a loss of emergency response facility. * * UPDATE AT 1105 ON 1/21/11 FROM ROB SPADING TO PETE SNYDER * * * Maintenance has been completed and the TSC is returned to service as of 1005 CST. Notified R3DO (Bloomer).

ENS 46542 +/-
Where
Duane Arnold Iowa (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
Time - Person (Reporting Time:+-0.15 h-0.00625 days <br />-8.928571e-4 weeks <br />-2.0547e-4 months <br />)
Opened:	Greg Merta 14:31 Jan 14, 2011
NRC Officer:	Vince Klco
Last Updated:	Jan 21, 2011
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v • d • e

v t e Emergency Notification System
Duane Arnold with 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
WEEKMONTHYEAR2018-07-11T05:00:00 [Table view]
[ENS list for Duane Arnold]

@@ Line 16: / Line 16: @@
 | event date = 01/14/2011 08:40 CST
 | last update date = 01/21/2011
-| title = Technical Support Center Out Of Service Due To Maintenance
+| title = Technical Support Center Out of Service Due to Maintenance
 | event text = At 0840 [CST] on Friday, January 14, 2011, a portion of the Duane Arnold Energy Center (DAEC) Technical Support Center (TSC) ventilation was removed from service to conduct maintenance on the charcoal filter medium.  The TSC Stand-by Filter Unit (TSC-SFU) was found with deluge water in the bottom of the charcoal filtration bed, and is therefore non-functional.
 Under certain accident conditions the TSC may become unavailable due to the inability of the ventilation system to maintain a habitable atmosphere.

Latest revision as of 22:08, 1 March 2018