05000237/FIN-2009002-04
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Finding | |
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| Title | Failure to Take Corrective Actions to Replace a Degraded Valve in a Timely Manner |
| Description | The inspectors identified an NCV of 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, for the failure to correct degraded safety-related equipment in a timely manner. A degraded 4-way solenoid valve for the reactor building ventilation damper 2-5741B actuator was not replaced during the work window that started on January 5, 2009. The solenoid valve failed on January 13, 2009, when it was called upon during a reactor building ventilation isolation. The violation was placed into the licensees corrective action program in IR 877591. The licensees corrective action included replacing all the 4-way solenoid valves in the actuators for all the Unit 2 and Unit 3 reactor building ventilation secondary containment isolation boundary dampers. Using the guidance contained in IMC 0612, Power Reactor Inspection Reports, Appendix B, Issue Disposition Screening, dated December 4, 2008, the inspectors determined that the finding was more than minor because it was associated with the Reactor Safety Barrier Integrity Cornerstone objective of maintaining the functionality of the secondary containment. The inspectors evaluated the finding using IMC 0609, Attachment 0609.04, dated January 10, 2008. Per Table 4a, under Containment Barrier, question 1, Does the finding only represent a degradation of the radiological barrier function provided for the ... Standby Gas Treatment System, the inspectors answered, YES. The secondary containment isolation valves isolate the secondary containment to ensure the effectiveness of the Standby Gas Treatment System. Therefore the finding was determined to be Green. The inspectors determined that this issue also affected the cross-cutting area of Problem Identification and Resolution, (P.1(c)). |
| Site: | Dresden  |
|---|---|
| Report | IR 05000237/2009002 Section 4OA2 |
| Date counted | Mar 31, 2009 (2009Q1) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | D Melendez-Colon W Slawinski C Phillips M Ring E Coffman J Draper |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Dresden - IR 05000237/2009002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Dresden) @ 2009Q1
Self-Identified List (Dresden)
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