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Unit 2 TS LCO 3.0.4 requires that, when anUnit 2 TS LCO 3.0.4 requires that, when an LCO is not met, entry into an OPCON or other condition in the Applicability shall only be made if specified conditions in LCO 3.0.4 were met. TS LCO 3.3.7.4 Remote Shutdown System lnstrumentation and Controls, requires the RHR Heat Exchanger Bypass Valve (HV-C-S1-2F048A) Position Indication (0-10070) (Table 3.3.7.4-1, Instrument 15)to be restored to operable within 7 days or be in at least Hot Shutdown within the next 12 hours with an Applicability in OPCONS 1 and 2. Contrary to LCO 3.0.4, on April 11, 2009, Unit 2 entered OPCON 2 with the position indication for HV-C-51-2F048A inoperable and specified conditions in LCO 3.0.4 were not met. The cause of the failure to meet LCO 3.0.4 was due to less than adequate administrative barriers being present to allow licensed operators to properly assess the TS impact of the deficiency. Also, operators did not use all available tools and resources at that time to validate the initial operability determination. This issue was entered into Exelon\'s CAP as lR 1168410. The finding was determined to have very low safety significance (Green) in accordance with NRC IMC 0609, Attachment 4, Phase 1 - Initial Screening and Characterization of Finding, Mitigating Systems, because the finding did not represent an actual loss of safety function or screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event.oding, or severe weather initiating event.  +
23:59:59, 31 March 2011  +
05000352  +  and 05000353  +
23:59:59, 31 March 2011  +
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1.388889e-4 d (0.00333 hours, 1.984127e-5 weeks, 4.566e-6 months)  +
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>.
00:42:07, 21 February 2018  +
23:59:59, 31 March 2011  +
None  +