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On Sunday June 10, 2012 at 0112 (Central T … On Sunday June 10, 2012 at 0112 (Central Time), a through-wall leak was discovered on a piping elbow upstream of the High Pressure Coolant Injection (HPCI) Inlet Drain Pot Inboard Drain valve to the Main Condenser, AOV 3-2301-29. This piping elbow is safety-related, ASME Code Class 2 piping. Dresden Technical Requirements Manual 3.4.a, Condition B requires the leak to be isolated which renders the HPCI system inoperable. The Unit 3 HPCI system was isolated and declared inoperable at 0300 (Central Time), and Technical Specification 3.5.1 Condition G has been entered. The HPCI system is a single train system.</br>The event is being reported pursuant to 10 CFR 50.72(b)(3)(v)(D), any event or condition that at the time of discovery could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
08:00:00, 10 June 2012 +
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10:00:00, 10 June 2012 +
08:00:00, 10 June 2012 +
On Sunday June 10, 2012 at 0112 (Central T … On Sunday June 10, 2012 at 0112 (Central Time), a through-wall leak was discovered on a piping elbow upstream of the High Pressure Coolant Injection (HPCI) Inlet Drain Pot Inboard Drain valve to the Main Condenser, AOV 3-2301-29. This piping elbow is safety-related, ASME Code Class 2 piping. Dresden Technical Requirements Manual 3.4.a, Condition B requires the leak to be isolated which renders the HPCI system inoperable. The Unit 3 HPCI system was isolated and declared inoperable at 0300 (Central Time), and Technical Specification 3.5.1 Condition G has been entered. The HPCI system is a single train system.</br>The event is being reported pursuant to 10 CFR 50.72(b)(3)(v)(D), any event or condition that at the time of discovery could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
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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>.
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08:00:00, 10 June 2012 +
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