05000321/FIN-2015002-01
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Finding | |
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| Title | Failure to Maintain HELB Penetration |
| Description | An NRC identified non-cited violation (NCV) of 10 CFR 50, Appendix B, Criterion III, Design Control, was identified for failure to maintain reactor building residual heat removal (RHR) diagonal room penetrations in the designed configuration. The violation was entered into the licensees corrective action program as CR 10055943. The licensee issued work orders to seal the affected penetrations in accordance with design documents. The licensees failure to maintain the penetration seals in accordance with design drawings was a performance deficiency. The performance deficiency was more than minor because it was associated with the Design Control attribute of the Mitigating Systems Cornerstone and adversely affected the cornerstone objective in that the failure to maintain the design basis configuration compromised the capability of the RHR diagonal room wall to restrict a high pressure coolant injection (HPCI) high energy line break to the torus area. The finding was of very low safety significance (Green) because the loss of component function did not significantly affect the function of the train or system. The inspectors determined that the finding had a cross-cutting aspect of work management in the human performance area (H.5), because the licensees work process did not control work activities such that nuclear safety was the overriding priority. |
| Site: | Hatch  |
|---|---|
| Report | IR 05000321/2015002 Section 1R15 |
| Date counted | Jun 30, 2015 (2015Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | D Hardage D Retterer G Ottenberg S Sandal T Stephen |
| Violation of: | 10 CFR 50 Appendix B Criterion III, Design Control |
| INPO aspect | |
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Finding - Hatch - IR 05000321/2015002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Hatch) @ 2015Q2
Self-Identified List (Hatch)
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