05000302/FIN-2011003-01
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | 10 CFR 50 Appendix B, Criterion III, Design Control, requires, in part, that measures shall be established to assure that applicable regulatory requirements and design basis for those structures, systems, and components are correctly translated into specifications, drawings, procedures and instructions. Licensee corporate engineering procedures EGR-NGGC-0005, Engineering Change; and Administrative Corporate procedure ADM-NGGC-0116, Nuclear Planning, implement those requirements. Contrary to the above, the licensee failed to translate the design basis requirements of modifications MAR 86-09-15, Raw Water Joint Encapsulation Sleeve, and MAR 90-08-16, Circulating Water Joint Encapsulation Sleeve, into work orders or procedures to ensure continued maintenance of design basis requirements. As a result, the raw water and circulating water encapsulation sleeves were found to have a larger gap than allowed by design, and consequently would have caused a greater internal flood rate into the auxiliary building had the expansion joints failed. The performance deficiency of failing to maintain the gaps within the required tolerances on the raw water and circulating water encapsulation sleeves is more than minor because, if left uncorrected, would have the potential to lead to a more significant safety concern during a rupture of a raw water or circulating water expansion joint. The licensees corrective actions include revising maintenance procedures to add acceptance criteria for the encapsulation sleeve gaps. The finding was determined to be of very low safety significance (Green) because after performing additional engineering evaluations and calculations, it was concluded that the auxiliary building internal design basis flood requirements were not exceeded. This issue was documented in the licensees corrective action program as NCRs 456729, 457510, and 457181. |
| Site: | Crystal River  |
|---|---|
| Report | IR 05000302/2011003 Section 4OA7 |
| Date counted | Jun 30, 2011 (2011Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | G Kuzo R Reyes T Morrissey D Rich A Sengupta N Childs |
| INPO aspect | |
| ' | |
Finding - Crystal River - IR 05000302/2011003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Crystal River) @ 2011Q2
Self-Identified List (Crystal River)
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||