05000313/FIN-2008004-06
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Finding | |
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Title | Licensee-Identified Violation |
Description | 10 CFR Part 50.65(b)(2)(ii) requires, in part, that both safety-related and nonsafety-related systems, structures, or components whose failure could prevent safety-related systems, structures, or components from fulfilling their safety-related function be scoped in the Maintenance Rule monitoring program. Contrary to the above, licensee personnel failed to incorporate the high pressure safety injection pressurization system into the Maintenance Rule monitoring program. Specifically, licensee personnel performed a modification of the high pressure safety injection system to incorporate a pressurization system on the discharge piping to ensure that void formation could not occur. However, during a subsequent review licensee personnel determined that the modification had not been reviewed for inclusion in the Maintenance Rule monitoring program and determined that it should have been included in the monitoring program. In accordance with NRC Manual Chapter 0609, \\\\\\\"Significance Determination Process,\\\\\\\" Phase 1 Worksheet, the finding was determined to have very low safety significance because: (1) the finding was not a qualification deficiency that resulted in a loss functionality of Chiller Valve VCH-4B; (2) it did not lead to an actual loss of safety function of the system or train; (3) it did not result in the loss of one or more trains of nontechnical specification equipment; (4) it did not represent an actual loss of safety function of one or more nontechnical specification trains of equipment designated as risk-significant per 10 CFR 50.65, for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; and (5) it did not screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. This issue was entered into the licensee\\\\\\\'s corrective as Condition Report ANO-C-2008-1433. |
Site: | Arkansas Nuclear |
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Report | IR 05000313/2008004 Section 4OA7 |
Date counted | Sep 30, 2008 (2008Q3) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Licensee-identified |
Inspection Procedure: | |
Inspectors (proximate) | P Elkmann D Stearns T Mckernon A Sanchez J Josey B Larson |
INPO aspect | |
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Finding - Arkansas Nuclear - IR 05000313/2008004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Arkansas Nuclear) @ 2008Q3
Self-Identified List (Arkansas Nuclear)
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