ENS 47014

v t e ENS Event
04:00 Jun 11, 2011
Title	Power Outage Causing Loss of Battery Room Ventillation and Hydrogen Monitor
Event Description	At approximately 1451 hours0.0168 days <br />0.403 hours <br />0.0024 weeks <br />5.521055e-4 months <br /> EDT on 07/1/2011, the Nuclear Regulatory Affairs Manager completed his review of the initial (draft) engineering report [related to an event that occurred on June 11, 2011].. [The review determined] the impact the June 11, 2011 power outage may have had on the Battery Room 3/4 forced air ventilation and hydrogen monitoring systems. [The review also] determined the incident should be reported to the NRC because he could find no evidence that either system would have met their respective IROFS [Item Relied On for Safety] surveillance requirements during the power outage. This incident is being reported to the Nuclear Regulatory Commission (NRC) as a 24-hour event in accordance with American Centrifuge Administrative Procedure ACD2-RG-044 (Nuclear Regulatory Event Reporting), Appendix B,Section I, which states: 'An event in which equipment is disabled or fails to function as designed as described by any of the following: (Paragraph) 2. The equipment is required to be available and operable when it is disabled or fails to function: AND no redundant equipment is available and operable to perform the required safety function .' The licensee will notify the NRC Region II office and site Department of Energy.

ENS 47014 +/-
Where
Portsmouth Lead Cascade Piketon, Ohio (NRC Region 2)
License number:	SNM-7003
Reporting

10 CFR 70.50(b)(2)
Time - Person (Reporting Time:+492.57 h20.524 days <br />2.932 weeks <br />0.675 months <br />)
Opened:	Ron Crabtree 16:34 Jul 1, 2011
NRC Officer:	Mark Abramovitz
Last Updated:	Jul 1, 2011
47014 - NRC Website
v • d • e

v t e Emergency Notification System
Portsmouth Lead Cascade with 10 CFR 70.50(b)(2)
WEEKMONTHYEAR2011-06-11T04:00:00 [Table view]
[ENS list for Portsmouth Lead Cascade]

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