05000413/FIN-2012003-01
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Finding | |
|---|---|
| Title | Failure to Adequately Implement Tagout Procedures |
| Description | A self-revealing non-cited violation (NCV) of TS 5.4.1, Procedures, was identified when the licensee failed to follow NSD 500, Red Tags/Configuration Control Tags. The licensee implemented a tagout that was not supported by plant conditions which resulted in the inoperability of the 2B ND train while in Mode 6 with refueling cavity level less than 23 feet. Immediate actions were taken to declare the 2B ND train inoperable and manually reopen the loop isolation valves inside containment. The issue was entered into the licensees corrective action program (CAP) as Problem Identification Program (PIP) report C-12-2313. The performance deficiency (PD) was more than minor because it was associated with the Mitigating Systems cornerstone attribute of equipment performance and adversely affected the cornerstone objective in that the isolation of reactor coolant system pressure SSPS relays prevented the opening of the 2B ND loop isolation valves resulting in the 2B ND train being inoperable. Using the screening criteria in IMC 0609, Appendix G, Attachment 1, Phase 1 Operational Checklist 3, PWR Cold Shutdown and Refueling Operation RCS Open and Refueling Cavity <23 feet, a Phase 2 risk analysis was required because the finding increased the likelihood of a loss of decay heat removal. A Phase 3 risk analysis determined the finding was of very low safety significance (Green) because of the less than one hour exposure time. The cause of this finding was related to the cross-cutting aspect of the need to keep personnel apprised of the operational impact of work activities as described in the Work Control component of the Human Performance cross-cutting area because the effect of the tagout on ND system operation was not adequately understood by operations personnel responsible for implementation. |
| Site: | Catawba  |
|---|---|
| Report | IR 05000413/2012003 Section 1R20 |
| Date counted | Jun 30, 2012 (2012Q2) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.2 |
| Inspectors (proximate) | J Bartley R Cureton A Hutto |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Catawba - IR 05000413/2012003 | |||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Catawba) @ 2012Q2
Self-Identified List (Catawba)
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