05000313/FIN-2008003-10
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Title10 CFR 50.65(a)(1) requires, in part, that holders of an operating license shall monitor the performance or condition of SSCs within the scope of the rule against licensee-established goals in a manner sufficient to provide reasonable assurance that such SSCs are capable of fulfilling their intended safety functions. 10 CFR 50.65(a)(2) requires, in part, that monitoring specified in paragraph (a)(1) is not required where it has been demonstrated the performance or condition of an SSC is being effectively controlled through appropriate preventive maintenance, such that the SSC remains capable of performing its intended function. Contrary to the above, the licensee failed to demonstrate that performance of emergency switchgear chillers was being effectively controlled through appropriate preventive maintenance. Specifically, while reevaluating the systems performance for 10 CFR 50.65(a)(1) status as a corrective action in response to a previous NCV for failure to adequately monitor the performance of the system, the licensee determined that Emergency Switchgear Chiller VCH-4B had exceeded its performance criteria and should have been classified as being in (a)(1) status. This finding was determined to have very low safety significance because the Maintenance Rule aspect of the finding did not lead to an actual loss of safety function of the system or cause a component to be inoperable, nor did it screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. This issue was entered into the licensees CAP as CRs ANO-1-2008-0204 and ANO-1-2008-0156 |
| Site: | Arkansas Nuclear  |
|---|---|
| Report | IR 05000313/2008003 Section 4OA7 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | L Ricketson P Elkmann G George S Graves A Sanchez W Walker W Sifre J Josey S Alferink C Young G Apger S Makor B Rice |
| INPO aspect | |
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Finding - Arkansas Nuclear - IR 05000313/2008003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Arkansas Nuclear) @ 2008Q2
Self-Identified List (Arkansas Nuclear)
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