05000237/FIN-2015007-01
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Finding | |
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| Title | Procedure Revisions Resulted in Isolation Condenser Unable to Meet Design Basis |
| Description | The inspectors identified a finding of very-low safety significance, and an associated Non-Cited Violation (NCV) of Title 10, Code of Federal Regulations (CFR), Part 50, Appendix B, Criterion III, Design Control, for the licensees failure to ensure that applicable regulatory requirements and the isolation condensers (ICs) design bases were correctly translated into procedures. Specifically, the licensee added steps to the IC control procedures which directed operators to secure the IC in order to prevent the water level in the shell from going below 3.5 feet. The added steps would result in the IC being shutdown when required to operate per the ICs design bases. The licensee entered the issue into their Corrective Action Program (CAP) as Action Request 02506445, NRC MOD/5059 Inspection: ISCO [Isolation Condenser] Operating Procedures, dated May 28, 2015. The performance deficiency was determined to be more than minor because the finding was associated with the Mitigating Systems cornerstone attribute of Procedure Quality, and affected the cornerstones objective of ensuring the capability of systems that respond to initiating events to prevent undesirable consequences (i.e., core damage). Specifically, the inadequate procedures would drive the operators to stop the IC during a design bases event and prevent the IC from performing its design function of removing decay heat from the reactor. The finding has a cross-cutting aspect in the area of Human Performance; Teamwork, because the licensee did not communicate and coordinate activities within and across organizational boundaries to ensure nuclear safety is maintained. Specifically, the Operations Department failed to communicate and coordinate with the Engineering Department when developing the procedural changes. [H.4] |
| Site: | Dresden  |
|---|---|
| Report | IR 05000237/2015007 Section 1R17 |
| Date counted | Jun 30, 2015 (2015Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.17 |
| Inspectors (proximate) | C Hunt D Szwarc G Hausman J Corujo-Sandin M Jeffers |
| Violation of: | 10 CFR 50 Appendix B Criterion III, Design Control |
| CCA | H.4, Teamwork |
| INPO aspect | PA.3 |
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Finding - Dresden - IR 05000237/2015007 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Dresden) @ 2015Q2
Self-Identified List (Dresden)
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