05000271/FIN-2011002-02
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Finding | |
|---|---|
| Title | Steam Leak on High Pressure Coolant Injection (HPCI) During Surveillance Testing |
| Description | A self-revealing, Green NCV of Technical Specification 6.4, Procedures, was identified in which maintenance and planning personnel did not involve engineering personnel as required by Entergy procedure EN-MA-1 01, Fundamentals of Maintenance, Revision 9, and EN-WM-105, Planning, Revision 8, resulting in the incorrect material being used to replace the gasket on the flange of High Pressure Coolant Injection System (HPCI) steam trap 23T-3. Entergy ultimately replaced the gasket with the correct material and entered this issue into their corrective action program. The inspectors determined that the finding was more than minor because it was associated with the Human Performance attribute of the Mitigating Systems cornerstone, and affected the cornerstone objective to ensure the availability of systems that respond to initiating events to prevent undesirable consequences. The finding was determined to be of very low safety significance (Green) in accordance with IMC 0609, Appendix A, Determining the Significance of Reactor Inspection Findings for At-Power Situations, using Significance Determination Process (SOP) Phases 1, 2 and 3. A Region I Senior Reactor Analyst (SRA) conducted a Phase 3 analysis because the Phase 2 analysis indicated that the finding had the potential to be greater than very low safety significance (Greater than Green). This finding had a cross-cutting aspect in the Human Performance cross-cutting area, Decision Making component. because Vermont Yankee personnel did not obtain interdisciplinary input on the decision to use a different, incorrect gasket material in a steam trap in the HPCI system. [H.1 (a) |
| Site: | Vermont Yankee  |
|---|---|
| Report | IR 05000271/2011002 Section 4OA3 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | D Jackson D Spindler S Rich |
| CCA | H.13, Consistent Process |
| INPO aspect | DM.1 |
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Finding - Vermont Yankee - IR 05000271/2011002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Vermont Yankee) @ 2011Q1
Self-Identified List (Vermont Yankee)
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