05000528/FIN-2012004-07
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Title 10 CFR 50.55(a) Codes and Standards states in part that systems and components of nuclear power reactors must meet the requirements of the standards referenced in paragraph (b)(3) of this section. Title 10 CFR 50.55(a)(b)(3) states in part that references to the OM Code refer to the ASME Code for Operation and Maintenance of Nuclear Power Plants, including Mandatory Appendix I. Mandatory Appendix I Inservice Testing of Pressure Relief Devices in Light-Water Reactor Nuclear Power Plants states in part that Class 1 pressure relief valves shall be tested at least once every five years, a minimum of 20% of the valves from each valve group shall be tested within any 24-month interval, and for replacement of a partial complement of valves, the valves removed from service shall be tested prior to resumption of electric power generation. Contrary to the above, prior to October 5, 2011, the licensee failed to test a minimum of 20% of Class 1 thermal relief valves within any 24 month interval for Units 1 and 3 and failed to test Class 1 thermal relief valves removed from service prior to resumption of electric generation for Unit 2. The licensee has entered surveillance requirement SR 3.0.3 for all three units and will test the affected Class 1 thermal relief valves, in accordance with Mandatory Appendix I, at the next outage for each unit respectively. The inspectors concluded that the finding is of very low safety-significance (Green) because the reactor coolant system barrier remained intact, was not associated with the fuel barrier, and did not constitute a spent fuel pool issue and has been entered into the licensees corrective action program as PVAR 4206766. |
| Site: | Palo Verde  |
|---|---|
| Report | IR 05000528/2012004 Section 4OA7 |
| Date counted | Sep 30, 2012 (2012Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | M Baquera D Reinert D You R Lantz M Brown J Melfi J Laughlin B Parks |
| INPO aspect | |
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Finding - Palo Verde - IR 05000528/2012004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palo Verde) @ 2012Q3
Self-Identified List (Palo Verde)
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