05000397/FIN-2011004-06
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | Technical Specification 3.9.4, Control Rod Position Indication, requires, in part, that when one or more required control rod position indication channels are inoperable, action should be taken to immediately suspend control rod withdrawal. Contrary to the above, on June 28, 2011, control rod withdrawal was performed with the full in position indicator for control rod 34-47 inoperable. The full in position indicator was inoperable based on not meeting Technical Specification Surveillance Requirement 3.9.4.1. Upon discovery of this issue on June 29, 2011, the licensee took action to comply with the requirement of Technical Specification 3.9.4. This finding was entered in the licensee's corrective action program as Action Request 243588. This finding is greater than minor because it was associated with the human performance attribute of the Barrier Integrity Cornerstone and adversely affected the cornerstone objective to provide reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. This finding was of very low safety significance because it was determined to only potentially impact the functionality of the fuel cladding barrier. |
| Site: | Columbia  |
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| Report | IR 05000397/2011004 Section 4OA7 |
| Date counted | Sep 30, 2011 (2011Q3) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | L Ricketson P Elkmann R Cohen G George L Carson W Walker A Fairbanks J Groom M Hayes E Ruesch D Reinert N Greene |
| INPO aspect | |
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Finding - Columbia - IR 05000397/2011004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Columbia) @ 2011Q3
Self-Identified List (Columbia)
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