05000390/FIN-2009006-01
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Finding | |
|---|---|
| Title | Failure to Promptly Correct a Condition Adverse to Quality Associated with the \'A\' Shutdown Boardroom Chiller |
| Description | A self-revealing non-cited violation (NCV) of 10 CFR 50, Appendix B, Criterion XVI was identified for failure to take timely and effective corrective action to maintain the capillary line to the Essential Raw Cooling Water (ERCW) condenser water temperature control valve (1-TCV-67-158) filled with water to ensure operability of the A Shutdown Boardroom chiller. The licensee vented the line, returning the chiller to service, and entered the issue into their CAP. The finding is more than minor because it affects the Mitigating Systems Cornerstone objective of ensuring the availability of the A Shutdown boardroom chiller, which is a system that responds to initiating events. It is also associated with the cornerstone attribute of equipment availability and reliability. This finding was assessed using the Phase 1 screening worksheet of the SDP and determined to be of very low safety significance (Green) because it did not result in an actual loss of safety function of a single train for greater than the Technical Specification (TS) allowed outage time and was not potentially risk-significant due to external events. This finding has a cross-cutting aspect in the Work Control component of the Human Performance area (H.3(b)), because the licensee failed to properly prioritize the compensatory maintenance activities to support safety system operability of an operable but degraded system |
| Site: | Watts Bar  |
|---|---|
| Report | IR 05000390/2009006 Section 4OA2 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | E Guthrie J Baptist M Pribish D Merzke J Heath |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Watts Bar - IR 05000390/2009006 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Watts Bar) @ 2009Q2
Self-Identified List (Watts Bar)
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