05000352/FIN-2011002-02
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Finding | |
|---|---|
| Title | None |
| Description | Unit 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 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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. |
| Site: | Limerick  |
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| Report | IR 05000352/2011002 Section 4OA7 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | E Dipaolo T Moslak N Sieller |
| INPO aspect | |
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Finding - Limerick - IR 05000352/2011002 | ||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Limerick) @ 2011Q1
Self-Identified List (Limerick)
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