05000263/FIN-2011010-03
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Finding | |
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Title | Licensee-Identified Violation |
Description | The licensee identified a finding of very low safety significance (Green) and associated NCV of License Condition 2.C.4 for the failure to implement and maintain in effect all provisions of their approved fire protection program. This includes adhering to the 10 CFR 50, Appendix B Quality Assurance Program requirements for the design, procurement, installation, testing and administrative controls for the fire protection program. Title 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, requires, in part, that measures shall be established to assure that conditions adverse to quality, such as deficiencies are promptly identified and corrected. Contrary to the above, from August 21, 2007 until August 26, 2011, the licensee failed to promptly identify and correct a condition adverse to quality that resulted in the plugging of the intake structure sprinkler system. Specifically, the licensee failed to perform corrective actions (work order 342675-02) to flush the intake structure sprinkler system following a blockage event in the EDG rooms in 2007. The performance deficiency was determined to be more than minor because the plugging in the intake structure pre-action sprinkler system was left uncorrected for four years and became a more significant safety concern. The inspectors concluded that this finding was associated with the Mitigating Systems cornerstone. The Region III SRA used the risk assessment tools of IMC 0609, Appendix F, Fire Protection SDP, and performed bounding analyses using the Monticello Standard Plant Analysis Risk (SPAR Model), Version 8.15. The SRA also reviewed and discussed the licensees bounding risk assessment documented in PRA Memo 11-01-, Revisions 0 and 1, Risk Assessment of Intake Fire Suppression System Plugging. The finding was determined to be of very low safety significance (Green) because the risk increase using bounding assumptions was below 1E-6. The licensee flushed the system, restored functionality, and wrote AR 01303860 to document the multiple rescheduling. |
Site: | Monticello |
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Report | IR 05000263/2011010 Section 4OA7 |
Date counted | Dec 31, 2011 (2011Q4) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Licensee-identified |
Inspection Procedure: | |
Inspectors (proximate) | D Szwarc A Stone P Voss C Tilton |
INPO aspect | |
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Finding - Monticello - IR 05000263/2011010 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Monticello) @ 2011Q4
Self-Identified List (Monticello)
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