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The following event description is based o … The following event description is based on information currently available. If through subsequent reviews of this event, additional information is identified that is pertinent to this event or alters the information being provided at this time, a follow-up notification will be made via the ENS or under the reporting requirements of 10CFR50.73.</br>On February 3, 2004 at approximately 14:18 MST, Palo Verde Nuclear Generating Station (PVNGS) Unit 1 identified reactor coolant system (RCS) pressure boundary leakage. PVNGS Unit 1 was in Mode 1 (Power Operation) at 99% power with normal RCS temperature and pressure at the time of discovery. A normal reactor shutdown was commenced at 15:35. Technical Specification Limiting Condition for Operation 3.4.14 (RCS Operational Leakage) allows no pressure boundary leakage and requires the plant to be in Mode 3 (Hot Shutdown) within 6 hours and Mode 5 (Cold Shutdown) within 36 hours and TLCO 3.14.103 (Structural Integrity).</br>The leakage was discovered on a High Pressure Safety Injection Drain Valve (SIA-V056) with is connected to the RCS loop 1 hot leg and is non isolable. The location of the leak is at a weld on the valve socket weld and is estimated at 10 drops per second.</br>No automatic or manual reactor protection system or engineered safety features actuations occurred and none were required. There were no other component failures, testing or work in progress that contributed to the leak. The leak is located within the containment building, therefore there is no release of radioactivity to the environment and no impact to the health and safety of the public. There is no elevated RCS activity and heat removal is via normal steaming to the main turbine condenser, The electric grid is stable.</br>The licensee has notified the NRC resident Inspector.e has notified the NRC resident Inspector. +
22:35:00, 3 February 2004 +
18:52:00, 3 February 2004 +
22:35:00, 3 February 2004 +
The following event description is based o … The following event description is based on information currently available. If through subsequent reviews of this event, additional information is identified that is pertinent to this event or alters the information being provided at this time, a follow-up notification will be made via the ENS or under the reporting requirements of 10CFR50.73.</br>On February 3, 2004 at approximately 14:18 MST, Palo Verde Nuclear Generating Station (PVNGS) Unit 1 identified reactor coolant system (RCS) pressure boundary leakage. PVNGS Unit 1 was in Mode 1 (Power Operation) at 99% power with normal RCS temperature and pressure at the time of discovery. A normal reactor shutdown was commenced at 15:35. Technical Specification Limiting Condition for Operation 3.4.14 (RCS Operational Leakage) allows no pressure boundary leakage and requires the plant to be in Mode 3 (Hot Shutdown) within 6 hours and Mode 5 (Cold Shutdown) within 36 hours and TLCO 3.14.103 (Structural Integrity).</br>The leakage was discovered on a High Pressure Safety Injection Drain Valve (SIA-V056) with is connected to the RCS loop 1 hot leg and is non isolable. The location of the leak is at a weld on the valve socket weld and is estimated at 10 drops per second.</br>No automatic or manual reactor protection system or engineered safety features actuations occurred and none were required. There were no other component failures, testing or work in progress that contributed to the leak. The leak is located within the containment building, therefore there is no release of radioactivity to the environment and no impact to the health and safety of the public. There is no elevated RCS activity and heat removal is via normal steaming to the main turbine condenser, The electric grid is stable.</br>The licensee has notified the NRC resident Inspector.e has notified the NRC resident Inspector. +
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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00:00:00, 3 February 2004 +
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>.
02:24:14, 2 March 2018 +
18:52:00, 3 February 2004 +
true +
false +
-0.155 d (-3.72 hours, -0.0221 weeks, -0.0051 months) +
22:35:00, 3 February 2004 +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.