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Title 10 CFR Part 50, Appendix B, Section … Title 10 CFR Part 50, Appendix B, Section XI, Test Control, required, in part, that the test program demonstrate that systems and components will perform satisfactorily in service and is performed in accordance with written test procedures that incorporate the requirement and acceptance limits contained in applicable design documents. Contrary to this, Pacific Gas and Electric failed to ensure that testing demonstrated that systems and components would perform satisfactorily in service and perform in accordance with written test procedures which incorporated the requirements and acceptance limits into applicable design documents. Specifically, on November 14, 2010, the licensee performed comprehensive pump testing of Unit 1 turbine-driven auxiliary feedwater pump following replacement of the turbine governor during the most recent refueling outage. The licensee adjusted governor speed settings to meet the pump speed criteria of Procedure STP P-AFW-A11, Comprehensive Testing of Turbine-Driven Auxiliary Feedwater Pump 1-2, Revision 6. Testing personnel identified that the turbine speed settings differed from the previous governor. Following an engineering evaluation, operators performed a surveillance test of the pump and discovered that turbine speed exceeded the test acceptance criteria. The licensee concluded that the new governor had different performance characteristics from the previous governor. Pacific Gas and Electric failed to revise the test procedures to reflect the new governor performance characteristics. As a result, the licensee inappropriately adjusted the governor settings. Pacific Gas and Electric entered this issue into the corrective action program as Notification 50316384 and initiated corrective actions to re-perform comprehensive testing to the pump and adjust the governor to meet pump acceptance criteria. The inspectors concluded this finding was of very low safety significance because it did not result in an actual loss of safety function of the pump.ctual loss of safety function of the pump.
23:59:59, 31 December 2010 +
23:59:59, 31 December 2010 +
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C Graves +, M Peck +, L Ricketson +, D Allen +, B Latta +, E Wong +, Clyde Osterholtz +, Isaac Anchondo +, Ron Kopriva +, Dustin Reinert +, Michael Brown +, Paul Goldberg + and Casey Alldredge +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
15:41:11, 30 May 2018 +
C Graves +, M Peck +, L Ricketson +, D Allen +, B Latta +, E Wong +, Clyde Osterholtz +, Isaac Anchondo +, Ron Kopriva +, Dustin Reinert +, Michael Brown +, Paul Goldberg + and Casey Alldredge +
23:59:59, 31 December 2010 +