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The surveillance testing of the high press … The surveillance testing of the high pressure coolant injection (HPCI) system was inadequate for monitoring HPCI governor control system performance due to the licencees failure to incorporate vendor recommendations. The inadequate test controls for monitoring HPCI governor control system performance allowed system degradation to go unnoticed until an actual failure of the HPCI system occurred during the October 14, 1999, plant scram. This issue was determined to have low to moderate risk significance because HPCI is an important mitigating system during a loss of offsite power event, and it is likely that the system would not have been able to perform the intended function during a period greater than 30 days. The failure to have adequate test controls for determining HPCI operability is an apparent violation of NRC requirements.an apparent violation of NRC requirements. +
23:59:59, 31 March 2000 +
23:59:59, 31 March 2000 +
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>.
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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>.
23:44:06, 20 February 2018 +
G Meyer + and Richard Rasmussen +
Processing error"Processing error" is a predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> and represents errors that appeared in connection with improper value annotations or input processing.
23:59:59, 31 March 2000 +