ENS 45340: Difference between revisions

v t e ENS Event
16:01 Sep 11, 2009
Title	Technical Support Center Unavailable Due to Maintenance
Event Description	At 1100 on Friday, September 11, 2009 a portion of the Duane Arnold Energy Center power plant (DAEC) Technical Support Center (TSC) ventilation system, Technical Support Center (TSC) air conditioning system, and Technical Support Center (TSC) computer system was removed from service for maintenance on Technical Support Center (TSC) electrical power supply. The electrical power supply being removed supports air conditioning, filtration system and computers. Under certain accident conditions the TSC may become unavailable due to the inability of the ventilation system to maintain a habitable atmosphere and loss of computer systems. Compensatory measures exist to rapidly restore power to the TSC if necessary based upon TSC activation requirements. The TSC power supply maintenance is scheduled to complete at 1800 on Friday, September 11, 2009. The licensee has notified the NRC Senior Resident Inspector. This notification is being made in accordance with 10 CFR 50.72 (b) (3) (xiii) due to loss of an emergency response facility. * * UPDATE FROM SCOTT AREBAUGH TO VINCE KLCO AT 1802 ON 9/11/2009 * * * The TSC power supply maintenance has been completed and the Technical Support Center(TSC) is now fully available. The licensee will notify the NRC Resident Inspector. Notified the R3DO(Ring).

ENS 45340 +/-
Where
Duane Arnold Iowa (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
Time - Person (Reporting Time:+-3.35 h-0.14 days <br />-0.0199 weeks <br />-0.00459 months <br />)
Opened:	Scott Arebaugh 12:40 Sep 11, 2009
NRC Officer:	Vince Klco
Last Updated:	Sep 11, 2009
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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 = 09/11/2009 11:01 CDT
 | last update date = 09/11/2009
-| title = Technical Support Center Unavailable Due To Maintenance
+| title = Technical Support Center Unavailable Due to Maintenance
 | event text = At 1100 on Friday, September 11, 2009 a portion of the Duane Arnold Energy Center power plant (DAEC) Technical Support Center (TSC) ventilation system, Technical Support Center (TSC) air conditioning system, and Technical Support Center (TSC) computer system was removed from service for maintenance on Technical Support Center (TSC) electrical power supply.
 The electrical power supply being removed supports air conditioning, filtration system and computers.

Latest revision as of 22:11, 1 March 2018