05000423/FIN-2014011-03
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Finding | |
|---|---|
| Title | Failure to Correctly Implement Emergency Operating Procedures |
| Description | The NRC identified a Green non-cited violation (NCV) of Technical Specification (TS) 6.8.1 Procedures, because the Millstone Unit 3 control room personnel did not implement Emergency Operating Procedures (EOP) in a timely manner and in accordance with EOP usage guidelines. Specifically, from approximately 0845 to 1438 on May 25, 2014, the licensed control room operators were effectively stopped on a transition step in ES-0.1, Reactor Trip Response, Step 14, which is a decision step requesting the verification of offsite power availability. However, EOP rules of usage would have required a transition into ES-0.2, Natural Circulation Cooldown. Dominion entered this issue into the corrective action program under CR 551059 and CR 553970, and initiated an apparent cause evaluation. The team determined there was a performance deficiency, in that Millstone Unit 3 control room personnel did not properly implement and execute procedurally-required actions of the EOPs in a timely manner and in accordance with the EOP usage rules, during a loss of offsite power and plant trip event. The performance deficiency was determined to be more than minor because it is associated with the Human Performance attribute of the Mitigating Systems cornerstone and affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences (i.e., core damage). to a more significant safety concern. The inspectors evaluated the finding using the Phase 1, Initial Screening and Characterization of Findings, worksheet in Attachment 4 to IMC 0609, Significance Determination Process and determined the finding to be of very low safety significance (Green). The finding was of very low safety significance (Green) because it did not result in an actual loss of function, only delayed additional cooldown and boration activities that would have assisted in event mitigation given the plant conditions at the time. The team determined that this finding had a cross-cutting aspect in the Human Performance cross-cutting area, Procedure Adherence component, because Millstone Unit 3 licensed personnel did not implement EOPs in a timely manner and in accordance with the EOPUG. |
| Site: | Millstone  |
|---|---|
| Report | IR 05000423/2014011 Section 4OA5 |
| Date counted | Sep 30, 2014 (2014Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 93812 |
| Inspectors (proximate) | R Rolph W Cook W Schmidt B Haagensen C Cahill C Lally D Jackson E Burket J Patel P Cataldo P Ott |
| Violation of: | Technical Specification - Procedures Technical Specification |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
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Finding - Millstone - IR 05000423/2014011 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Millstone) @ 2014Q3
Self-Identified List (Millstone)
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