05000269/FIN-2011002-01
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Finding | |
|---|---|
| Title | Inadequate Management of the Risk Associated with the Removal of the Unit 2 West Penetration Room Girts |
| Description | An NRC-identified non-cited violation of 10 CFR 50.65(a)(4) was identified for the licensees failure to effectively implement risk mitigation actions as defined in the Complex Activity Plan for the Unit 2 Cask Decon Tank Room and West Penetration Room (WPR) Siding Demolition project. A temporary seismic barrier was not properly constructed and would not have protected safety-related equipment in the event of a WPR wall collapse. The licensee delayed removal of the girts until the construction deficiencies were corrected. This condition was placed into the corrective action program (CAP) as Problem Investigation Program report (PIP) O-11-00747. The failure to implement a risk mitigation action in accordance with the Complex Activity Plan was a performance deficiency (PD). The PD was more than minor because it had the potential to become a more significant safety concern if left uncorrected in that the temporary seismic barrier would not have performed its intended function of protecting safety-related equipment if the WPR wall collapsed. The finding was of very low safety significance (Green) because there was no increase in the Incremental Core Damage Probability since the construction deficiencies were corrected prior to removal of the girts. The cause of the finding was directly related to the Supervisory and Management Oversight aspect of the Work Practices component in the cross-cutting area of Human Performance because the licensee failed to ensure that the appropriate level of supervisory and management oversight was applied to the installation of the temporary seismic barrier. |
| Site: | Oconee  |
|---|---|
| Report | IR 05000269/2011002 Section 1R13 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.13 |
| Inspectors (proximate) | A Sabisch E Lea G Crespo G Johnson G Ottenberg J Bartley J Hamman K Ellis P Higgins |
| CCA | H.2, Field Presence |
| INPO aspect | LA.2 |
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Finding - Oconee - IR 05000269/2011002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Oconee) @ 2011Q1
Self-Identified List (Oconee)
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