ENS 42611

v t e ENS Event
14:23 May 30, 2006
Title	Control Room Emergency Filtration System Inoperable
Event Description	Control Room Emergency Filtration System (CREFS) was declared Inoperable at 0923 on 5/30/2006 per TS 5.5.10.c 'Ventilation Filter Testing Program'. Laboratory testing results of a sample of the charcoal adsorber taken on 5/2/2006 did not meet the methyl iodide penetration percentage acceptance criteria of less than or equal to 1.0%. This condition is covered by TS 3.7.9 and both Unit 1 and Unit 2 entered Condition A, 'CREFS Inoperable' with a Required Action of 'Restore CREFS to OPERABLE status' with a Completion Time of 7 Days. CREFS is a single train system. Based on the guidance in NUREG-1022 for single train systems that perform safety functions, this condition was determined to be reportable under 10 CFR 50.72(b)(3)(v), 'Event or Condition That Could Have Prevented Fulfillment of a Safety Function'. Technical Specifications allow this system to be inoperable for a period of seven days. This condition was not reported within the 8 Hour Non-Emergency reporting requirements. The charcoal has been replaced and the licensee estimates testing at approximately 17:00. The licensee notified the NRC Resident Inspector.

ENS 42611 +/-
Where
Point Beach Wisconsin (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Time - Person (Reporting Time:+23.87 h0.995 days <br />0.142 weeks <br />0.0327 months <br />)
Opened:	Dean Raasch 14:15 May 31, 2006
NRC Officer:	Mark Abramovitz
Last Updated:	May 31, 2006
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v • d • e

v t e Emergency Notification System
Point Beach with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2018-03-01T22:43:00 [Table view]
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