05000324/FIN-2009004-07
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Technical Specification Limiting Condition for Operation TS 3.5.3 RCIC System, requires the RCIC system to be operable when steam dome pressure exceeds 150#. TS 3.0.4 prohibits entry into a plant condition where TS equipment is required to be operable, unless that equipment is operable (with certain exceptions). Contrary to the above, on April 18, 2007 during surveillance testing at approximately 1000#, the unit 2 RCIC pump tripped due to low suction pressure and was declared inoperable. It was later determined that the trip was caused by air that was left in the RCIC system piping after venting the RCIC piping prior to reactor startup on April 16, 2007. Therefore, the system was not operable when steam pressure was raised above 150#, and the licensee violated TS 3.0.4. The finding is of very low safety significance (Green) because, after assigning credit for manual operator recovery, the change in core damage probability was less than 1E-6. Because the finding is of very low safety significance and has been entered into the CAP (AR 203139203139, this finding is being treated as an NCV, consistent with of the Enforcement Policy. |
| Site: | Brunswick  |
|---|---|
| Report | IR 05000324/2009004 Section 4OA7 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | P Capehart G Kolcum S Rose J Polickoski J Reece C Welch R Musser R Clagg |
| INPO aspect | |
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Finding - Brunswick - IR 05000324/2009004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Brunswick) @ 2009Q3
Self-Identified List (Brunswick)
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