05000331/FIN-2017001-02
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Finding | |
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| Title | Failure to Enter Technical Specification 3.6.1.3 for an Inoperable Outboard Containment Purge Valve |
| Description | Green: The inspectors identified a finding of very low safety significance and an associated NCV of Title 10 of the Code of Federal Regulations (10 CFR) 50.36(c)(2)(i) for the licensees failure to enter TS 3.6.1.3 for an inoperable outboard drywell purge valve. Specifically, as a result of a deficient immediate operability determination (IOD), the licensee failed to declare the outboard drywell containment purge valve inoperable when it failed to satisfy surveillance requirement (SR) 3.6.1.3.4, perform leakage rate testing for each primary containment purge valve with resilient seals. The licensee entered this issue into the Corrective Action Program (CAP) as CR 2183505. Corrective actions included licensed operator training to share lessons learned. This performance deficiency is more than minor because it impacted the Barrier Integrity cornerstone attribute of SSCs and barrier performance, and adversely affected the cornerstone objective to provide reasonable assurance that physical design barriers (fuel cladding, reactor coolant system, and containment) protect the public from radionuclide releases caused by accidents or events. The finding was screened as very low safety significance because it did not represent an actual open pathway in the physical integrity of reactor containment, containment isolation system, and heat removal components, nor did it involve an actual reduction in function of hydrogen igniters in the reactor containment. This finding has a cross-cutting aspect of consistent process in the Human Performance cross-cutting area because the licensee used Tseal pressure and non-accident drywell conditions which are not related to the primary containment isolation valve (PCIV) specified safety function to declare the outboard drywell purge valve operable. [H.13] |
| Site: | Duane Arnold  |
|---|---|
| Report | IR 05000331/2017001 Section 1R12 |
| Date counted | Mar 31, 2017 (2017Q1) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | B Bergeon C Norton G Hansen J Cassidy J Steffes J Wojewoda K Stoedter |
| Violation of: | 10 CFR 50.36 Technical Specification |
| CCA | H.1, Resources |
| INPO aspect | LA.1 |
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Finding - Duane Arnold - IR 05000331/2017001 | |||||||||||||||||||||||||||||||||||||
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Finding List (Duane Arnold) @ 2017Q1
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