05000324/FIN-2008006-03
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | Technical Specification (TS) 5.4.1 requires the licensee to implement procedures recommended by Regulatory Guide 1.33, Appendix A, November 1972, which includes procedures for Power Operation and Process Surveillance. Reactor Engineering Guidelines Procedure (0ENP-24.0) requires that a Reactivity Control Plan (RCP) shall be developed for all preplanned power maneuvers. The licensees computer program generated a predict case that determined which control rods should have been moved to acquire the desired power maneuver. Step 12 in Attachment 2 of OENP - 24.0 required a comparison between the generated predict case and the information that would be transcribed onto the control rod movement form which would be used by the reactor operators to move the selected control rods. Contrary to the above, during power ascension on December 9, 2008, the on-duty Reactor Engineer transcribed four incorrect control rods onto the control rod movement sheet, which resulted in the incorrect control rods being withdrawn and a deviation to the RCP. Subsequent to moving three of the four control rods, the Reactor Engineer realized the error and informed the Senior Reactor Operator, who stopped control rod movement. This finding is of very low safety significance because core parameters (e.g., thermal limits) were maintained within specifications. This violation was entered into the licensees corrective action program as NCR 258349 Inadvertent Withdrawal of Multiple Control Rods. |
| Site: | Brunswick  |
|---|---|
| Report | IR 05000324/2008006 Section 4OA7 |
| Date counted | Mar 31, 2008 (2008Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | T Ross R Taylor J Austin M King J Polickoski R Hagar R Musser |
| INPO aspect | |
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Finding - Brunswick - IR 05000324/2008006 | ||||||||||||||||||||||||||||||||||||||
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Finding List (Brunswick) @ 2008Q1
Self-Identified List (Brunswick)
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