05000390/FIN-2012005-02
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Finding | |
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| Title | Failure to Adequately Develop and Implement Ice Condenser Ice Basket Repairs |
| Description | A NCV of 10 CFR 50 Appendix B, Criterion III, Design Control, for the licensees failure to adequately develop and implement ice condenser ice basket repairs in accordance with approved engineering and maintenance documents. Specifically, the inspectors observed that repairs to six damaged ice condenser ice baskets, previously signed off as complete in the work order (WO) by the installers and following Quality Control inspection and acceptance were not in accordance with the design and maintenance WO documents. The licensee initiated Problem Evaluation Reports (PERs) 623040 and 626983 to address the inspector-identified deficiencies. The licensees failure to adequately develop and implement ice condenser ice basket repairs in accordance with approved engineering and maintenance documents was a performance deficiency. The inspectors reviewed Inspection Manual Chapter (IMC) 0612 and determined that the finding was more than minor because the deficiencies were not identified by the licensee and would have remained unidentified at least for the duration of the upcoming fuel cycle. Without the specified repairs being properly implemented on the damaged ice baskets, there was no reasonable assurance they were capable of performing their design function, and there was also potential for damage to adjacent ice baskets obstructing open flow paths, in the event the ice condenser was required to perform its design function. Using the Initial Characterization of Findings guidance of IMC 0609, the inspectors determined that the finding was of very low safety significance (Green) because no actual loss of safety function occurred. The cause of the finding had a cross-cutting aspect in the area of effective supervisory/management oversight in the Work Practices component. It was directly related to the licensee not ensuring adequate supervisory and management oversight of work activities, including the licensee engineering personnel that prepared and reviewed the ECP, the contractors that performed the repair work and the Quality Control personnel that performed the repair inspection and acceptance. |
| Site: | Watts Bar  |
|---|---|
| Report | IR 05000390/2012005 Section 1R18 |
| Date counted | Dec 31, 2012 (2012Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.18 |
| Inspectors (proximate) | D Failla E Patterson J Hamman K Miller M Speck R Baldwin R Lanyi R Monk S Shaeffer |
| CCA | H.2, Field Presence |
| INPO aspect | LA.2 |
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Finding - Watts Bar - IR 05000390/2012005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Watts Bar) @ 2012Q4
Self-Identified List (Watts Bar)
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