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Early in plant life, Westinghouse HFB brea … Early in plant life, Westinghouse HFB breakers were installed in various systems onsite, including safety-related applications. The design life of these breakers was 20 years, according to Westinghouse. A portion of these breakers remained in-use at LaSalle and were installed more than 30 years ago. The licensee monitored breaker performance and tested these breakers routinely. Records show that failures of this type of breaker were researched and all of the previous failures at LaSalle have been attributed to manufacturing defects. While the lack of degradation-related failures for these breakers supported the disposition under the 50.65 Maintenance Rule, at this time, it is not clear that a lack of such failures provided adequate basis for an extension to the previously established design life. This issue is unresolved pending the inspectors review of additional information regarding the details of the components qualifications as noted in the original purchase order, in order for the inspectors to evaluate the acceptability of the licensees current method of extending the life of the component.od of extending the life of the component. +
23:59:59, 31 March 2015 +
23:59:59, 31 March 2015 +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 +, 05000373/FIN-2015001-04 + and 05000373/FIN-2015001-04 +
Michael Kunowski +, R Zuffa +, J Cassidy +, T Bilik +, N Valos +, Garrett Hansen +, Robert Ruiz +, John Robbins +, Don Krause + and Anthony Mcmurtray +
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>.
06:12:10, 16 November 2017 +
Michael Kunowski +, R Zuffa +, J Cassidy +, T Bilik +, N Valos +, Garrett Hansen +, Robert Ruiz +, John Robbins +, Don Krause + and Anthony Mcmurtray +
23:59:59, 31 March 2015 +