05000237/FIN-2011003-07
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Finding | |
|---|---|
| Title | Change In Unit 2 Reactor Water Level Due To A Failure To Follow Procedure |
| Description | A finding of very low safety significance and associated non-cited violation of Technical Specification 5.4.1 was self-revealed for a Nuclear Station Operator (NSO) failing to follow step G.14.a of procedure DOP 0600-06, Feedwater Regulating Valve (FWRV) Operation, Revision 39. This resulted in a reduction in Unit 2 reactor water level. The licensee took the following immediate corrective actions. The NSO placed the 2B FWRV in manual and restored reactor water level. The NSO was relieved from duty. The finding was determined to be more than minor because the finding could be reasonably viewed as a precursor to a significant event. Specifically, the event could have led to a reactor scram. The inspectors concluded this finding was associated with the Initiating Events Cornerstone. The inspectors evaluated the finding using the SDP in accordance with IMC 0609, Significance Determination Process, Attachment 0609.04, Phase 1 - Initial Screening and Characterization of Findings, Table 4a, for the Initiating Events Cornerstone. Since the finding did not contribute to both the likelihood of a reactor scram and the likelihood that mitigation equipment or functions would not be available, the finding screened as Green. This finding had a cross-cutting aspect in the area of human performance, work practices, because the licensee did not ensure the proper use of human error prevention techniques. |
| Site: | Dresden  |
|---|---|
| Report | IR 05000237/2011003 Section 4OA3 |
| Date counted | Jun 30, 2011 (2011Q2) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | M Bielby M Ring T Go J Draper C Tilton J Corujo-Sandin M Munir R Winter A Dahbur D Melendez-Colon C Phillips C Moore |
| CCA | H.12, Avoid Complacency |
| INPO aspect | QA.4 |
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Finding - Dresden - IR 05000237/2011003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Dresden) @ 2011Q2
Self-Identified List (Dresden)
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