05000454/FIN-2014005-07
Finding | |
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| Title | Licensee-Identified Violation |
| Description | On November 4, 2014, the licensee identified that the floor plug forming the internal flood barrier to an essential service water pump valve pit in the auxiliary building was removed prior to completion of the compensatory actions required by the Plant Barrier Impairment Permit, PBI 14334. 10 CFR 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, requires, in part, that activities affecting quality be prescribed by procedures appropriate to the circumstances. Plant Barrie
Control Program, CCAA201, assigns responsibility to Operations Management in step 4.4.2 to ensure compensatory actions are in place prior to authorizing permission to impair the barrier. In step 6.5.2.1 of CCAA201, Operations Management is required to ensure compensatory actions are in place prior to authorizing the impairment of the barrier. Contrary to the above, the licensee operating staff allowed impairment of the barrier without implementing the procedurally required compensatory actions. The licensee entered the issue in the CAP process as IR 2406628 and immediately implemented the compensatory actions on discovery of the omission. Inspectors determined that this issue wa more than minor because the performance deficiency adversely impacted the Mitigating Systems Cornerstone objective to ensure availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences in that intentional impairment of a design barrier is a modification that adversely impacts the attribute of design control and must be performed i accordance with approved procedures and processes. The inspector's evaluation of the missed actions determined that the affected systems would perform their credited functions and using IMC 0609, Appendix A, The Significance Determination Process For Findings At-Power, Exhibit 2, Mitigating Systems Screening Questions, Question A.1, determined that the finding screened as Green |
| Site: | Byron  |
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| Report | IR 05000454/2014005 Section 4OA7 |
| Date counted | Dec 31, 2014 (2014Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | C Thompson J Cassidy J Draper J Ellegood J Mcghee M Bielby M Holmberg R Baker R Jickling T Bilik |
| Violation of: | 10 CFR 50 Appendix B Criterion V |
| INPO aspect | |
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Finding - Byron - IR 05000454/2014005 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Byron) @ 2014Q4
Self-Identified List (Byron)
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