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The Unit 1 MCR (Main Control Room) HPCI (H … The Unit 1 MCR (Main Control Room) HPCI (High Pressure Coolant Injection) flow indicator was observed oscillating just above zero gpm with periodic spikes to approximately 50% of scale (3000 gpm) with a concurrent drop in flow controller output signal while in standby. There were no activities in progress on or near the HPCI system when the oscillation and instrument spikes occurred. Walkdown of the instrument rack and HPCI room equipment found no abnormalities. The HPCI system was declared inoperable at 1550 hours 11/2/2008 (14 day Shutdown LCO). Troubleshooting is in progress to determine the cause of the flow oscillations.</br>The HPCI system is considered available as there are no indications of controller failure that would impact operation in manual flow control mode.</br>Unit 1 RCIC, and all other ECCS systems remain OPERABLE.</br>The licensee will inform the NRC Resident Inspector.ee will inform the NRC Resident Inspector. +
20:50:00, 2 November 2008 +
20:33:00, 2 November 2008 +
20:50:00, 2 November 2008 +
The Unit 1 MCR (Main Control Room) HPCI (H … The Unit 1 MCR (Main Control Room) HPCI (High Pressure Coolant Injection) flow indicator was observed oscillating just above zero gpm with periodic spikes to approximately 50% of scale (3000 gpm) with a concurrent drop in flow controller output signal while in standby. There were no activities in progress on or near the HPCI system when the oscillation and instrument spikes occurred. Walkdown of the instrument rack and HPCI room equipment found no abnormalities. The HPCI system was declared inoperable at 1550 hours 11/2/2008 (14 day Shutdown LCO). Troubleshooting is in progress to determine the cause of the flow oscillations.</br>The HPCI system is considered available as there are no indications of controller failure that would impact operation in manual flow control mode.</br>Unit 1 RCIC, and all other ECCS systems remain OPERABLE.</br>The licensee will inform the NRC Resident Inspector.ee will inform 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, 2 November 2008 +
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>.
02:13:18, 2 March 2018 +
20:33:00, 2 November 2008 +
true +
false +
-0.0117 d (-0.28 hours, -0.00167 weeks, -3.83544e-4 months) +
20:50:00, 2 November 2008 +
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.