05000456/FIN-2013008-01
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Finding | |
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| Title | Inaccurate/Incomplete Information For Exemption Request From 10 CFR 50.60 |
| Description | Title 10 of the Code of Federal Regulations (10 CFR) 50.9(a), Completeness and Accuracy of Information, requires that Information provided to the Commission by an applicant for a license or by a licensee or information required by statute, or by the Commission\'s regulations, orders, or license conditions to be maintained by the applicant or the licensee shall be complete and accurate in all material respects. In Letter No. RS-05-103, License Amendment Request Regarding Reactor Coolant System Pressure, and Temperature Limits Report and Request for Exemption from 10 CFR 50.60, Acceptance Criteria for Fracture Prevention Measures for Lightwater Nuclear Power Reactors for Normal Operation, Attachment 4, Justification for Exemption from 10 CFR 50.60, the licensee [Exelon Generation Company, LLC] stated WCAP-16143 provides a valid basis for changing the RPV [Reactor Pressure Vessel] closure head flange limit and maintains the relative margin of safety commensurate with that which existed at the time the 10 CFR [Part] 50, Appendix G requirement was issued. Contrary to the above, on October 3, 2005, in Letter No. RS-05-103, the licensee [Exelon Generation Company, LLC] failed to provide information to the Commission that was complete and accurate in all material respects, in that, WCAP-16143, Reactor Vessel Closure Had/Vessel Flange Requirements Evaluation for Byron/Braidwood Units 1 and 2, did not provide a valid basis for changing the RPV closure head flange limit for Braidwood Unit 2. Specifically, WCAP-16143, Section 4, Flange Integrity, demonstrated adequate vessel margins based upon the original closure head flange configuration and did not represent the modified closure head configuration (53 head studs applicable to the Unit 2 reactor vessel). Operation of the Braidwood Unit 2 vessel with 53 closure head studs was not within the bounds and limitations of what the NRC had reviewed in Letter No. RS-05-103 and found to be an acceptable basis to grant the exemption request. Therefore, this information was considered material to the NRC. |
| Site: | Braidwood  |
|---|---|
| Report | IR 05000456/2013008 Section 1R08 |
| Date counted | Dec 31, 2013 (2013Q4) |
| Type: | TEV: Severity level IV |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.08 |
| Inspectors (proximate) | B Boston B Palagi D Betancourt J Benjamin J Ellegood J Mcghee K Barclay M Holmberg M Perry R Jicklinga Garmoeb Metrow D Hills M Holmberg V Meghani |
| Violation of: | 10 CFR 50 Appendix G 10 CFR 50.9 License Condition 10 CFR 50.60 |
| INPO aspect | |
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Finding - Braidwood - IR 05000456/2013008 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Braidwood) @ 2013Q4
Self-Identified List (Braidwood)
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