Finding | |
|---|---|
| Title | Failure to Correctly Implement Reactor Coolant HEAT-UP Procedure |
| Description | The inspectors identified a self-revealing NCV of Technical Specification 5.4.1.a when control room operators closed the inlet and outlet Residual Heat Removal (RHR) system isolation valves while conducting a plant heat-up with the A reactor coolant system loop inoperable. This was contrary to procedural requirements which require operators to verify that two reactor coolant system loops are operable and at least one is operating prior to isolating the RHR system. Several minutes after isolating the RHR system, the control room operators recognized they were not complying with the procedure, and restored power to the RHR isolation valves. The time that the RHR system was isolated from the reactor coolant system was 15 minutes. This finding was determined to be of very low safety significance (Green) using Phase 1, Appendix G, Attachment 1, Checklist 4 of IMC 0609. This finding was of very low safety significance because the finding did not increase the likelihood of a loss of RCS inventory, degrade the ability of Ginna to terminate a leak path or add RCS inventory when needed, nor degrade the ability to recover RHR. This finding has a crosscutting aspect in the area of human performance because operators did not adhere to the procedural requirements prior to removing the RHR system from service (H.4.b per IMC 0305) |
| Site: | Ginna  |
|---|---|
| Report | IR 05000244/2008003 Section 1R20 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.2 |
| Inspectors (proximate) | K Mangan M Marshfield M Modes K Young K Kolaczyk G Dentel N Perry H Jones R Rolph |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
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Finding - Ginna - IR 05000244/2008003 | |||||||||||||||||||||||||||||
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Finding List (Ginna) @ 2008Q2
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