05000390/FIN-2014002-01
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Finding | |
|---|---|
| Title | Failure to Follow Plant Procedures for Replacement of NAMCO Limit Switches |
| Description | An NRC-identified NCV of Technical Specification (TS) 5.7.1, Procedures, was documented for the licensees failure to follow plant procedures which resulted in the undocumented modification of the upper NAMCO limit switch for valve 1-FCV-61-110-A, Glycol Outlet Containment Isolation Valve. The licensee planned replacement of the switch and entered this issue into their corrective action program as PER 857020. This performance deficiency was determined to be more than minor because it was associated with the Design Control attribute of the Barrier Integrity Cornerstone 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. Specifically, the failure to follow the proper plant procedures led to an unauthorized plant modification which reduced the ability of the licensee to provide assurance that a containment isolation valve would perform as designed. Using the screening worksheet of IMC 0609, Appendix A, Exhibit 3 Barrier Integrity Screening Questions, the inspectors determined that the finding was of very low safety significance (Green) because it did not represent an actual open pathway in the physical integrity of reactor containment and did not involve an actual reduction in the function of the hydrogen igniters in the reactor containment. The cause of the finding was directly related to the cross-cutting aspect that the licensee define and effectively communicate expectations regarding procedural compliance and that personnel follow procedures in the Work Practices component of the cross-cutting area of Human Performance, in that the licensee failed to ensure that the proper limit switch was installed on 1-FCV-61-110-A. |
| Site: | Watts Bar  |
|---|---|
| Report | IR 05000390/2014002 Section 1R19 |
| Date counted | Mar 31, 2014 (2014Q1) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.19 |
| Inspectors (proximate) | J Bartley K Miller R Monk |
| Violation of: | Technical Specification - Procedures Technical Specification |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
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Finding - Watts Bar - IR 05000390/2014002 | |||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Watts Bar) @ 2014Q1
Self-Identified List (Watts Bar)
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