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During performance of a plant shut down peDuring performance of a plant shut down personnel entered the Drywell to investigate a steam leak. At 0635 hours, personnel identified steam leaking from a flexible hose instrument line (approximately 1" diameter) that is welded to an elbow tap on the C Main Steam line and concluded that the leak constitutes pressure boundary leakage. This required entry into TS 3.4.5, Condition C. This requires that the unit be in Mode 3 in 12 hours and Mode 4 in 36 hours, which is a TS required shutdown.</br>The station has determined that this event is reportable under the provisions of: 10 CFR 50.72 (b)(2)(i) for the plant shutdown required by Technical Specifications, as a 4-hour notification; 10 CFR 50.72 (b)(3)(ii)(A) as an event or condition that resulted in the condition of the nuclear power plant, including its principal safety barriers being seriously degraded, as an 8-hour notification.</br>The NRC resident inspector has been notified.</br>The leaking line goes to a steam line flow instrument. The leak indication was first noticed yesterday and the licensee decided to shutdown to investigate before the leak was verified by the drywell entry.he leak was verified by the drywell entry.  +
11:35:00, 19 June 2007  +
43,430  +
11:09:00, 19 June 2007  +
11:35:00, 19 June 2007  +
During performance of a plant shut down peDuring performance of a plant shut down personnel entered the Drywell to investigate a steam leak. At 0635 hours, personnel identified steam leaking from a flexible hose instrument line (approximately 1" diameter) that is welded to an elbow tap on the C Main Steam line and concluded that the leak constitutes pressure boundary leakage. This required entry into TS 3.4.5, Condition C. This requires that the unit be in Mode 3 in 12 hours and Mode 4 in 36 hours, which is a TS required shutdown.</br>The station has determined that this event is reportable under the provisions of: 10 CFR 50.72 (b)(2)(i) for the plant shutdown required by Technical Specifications, as a 4-hour notification; 10 CFR 50.72 (b)(3)(ii)(A) as an event or condition that resulted in the condition of the nuclear power plant, including its principal safety barriers being seriously degraded, as an 8-hour notification.</br>The NRC resident inspector has been notified.</br>The leaking line goes to a steam line flow instrument. The leak indication was first noticed yesterday and the licensee decided to shutdown to investigate before the leak was verified by the drywell entry.he leak was verified by the drywell entry.  +
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>.
0.00735 d (0.176 hours, 0.00105 weeks, 2.416175e-4 months)  +, 1.388889e-4 d (0.00333 hours, 1.984127e-5 weeks, 4.566e-6 months)  +  and 4.166667e-4 d (0.01 hours, 5.952381e-5 weeks, 1.3698e-5 months)  +
00:00:00, 19 June 2007  +
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>.
02:16:32, 2 March 2018  +
11:09:00, 19 June 2007  +
false  +
-0.0179 d (-0.43 hours, -0.00256 weeks, -5.89014e-4 months)  +
11:35:00, 19 June 2007  +
Tech Spec Required Shutdown Due to Instrument Line Steam Leak  +
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.
1  +