05000324/FIN-2014002-01
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Finding | |
|---|---|
| Title | Unit 2 Recirculation Loop Flow Exceeding Mismatch Limit |
| Description | TS 3.4.1, Recirculation Loop Operating, requires two recirculation loops with matched flows in Modes 1 and 2. Contrary to the above, on December 3, 2010, and December 18, 2010, the recirculation loop mismatch flow exceeded the limits specified in SR 3.4.1.1. Specifically, the loop mismatch duration exceeded the TS completion time of six hours to restore matching flows. The license took action to revise procedures 1OI-03.1 and 2OI-03.2, Reactor Operator Daily Surveillance Report, to require use of plant process computer loop flows points as well as control room recirculation loop flow indicators when preforming SR 3.4.1.1. This violation screened to IMC 0609, Appendix A, The SDP for Findings at Power, Exhibit 2 Mitigating Systems Screening Questions. This violation was determined to be very low safety significance Green) because the finding did not result in a mismanagement of reactivity by operator(s) (e.g., reactor power exceeding the licensed power limit, inability to anticipate and control changes in reactivity during crew operations). The licensee entered this issue into their CAP as NCR 613201. |
| Site: | Brunswick  |
|---|---|
| Report | IR 05000324/2014002 Section 4OA7 |
| Date counted | Mar 31, 2014 (2014Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | A Nielsen G Hopper J Rivera M Catts M Coursey M Schwieg R Hamilton S Herrick |
| Violation of: | Technical Specification - Procedures Technical Specification |
| INPO aspect | |
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Finding - Brunswick - IR 05000324/2014002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Brunswick) @ 2014Q1
Self-Identified List (Brunswick)
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