05000220/FIN-2011005-01
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Finding | |
|---|---|
| Title | Troubleshooting Approach Not Consistent With Technical Specification Bases |
| Description | The inspectors identified a Green finding for the failure of NMPNS to follow the technical specifications (TS) bases associated with limiting condition for operation (LCO) 3.0.2. Specifically on October 24, 2011, on three separate occasions, NMPNS entered TS 3.3.6.1 Condition B for operational convenience to conduct troubleshooting of a reactor water cleanup (RWCU) system differential flow high channel. The inspectors determined this action was contrary to the bases of TS LCO 3.0.2 which states, in part, intentional entry into actions should not be made for operational convenience and must not compromise safety. NMPNS immediate corrective actions included coaching the control room personnel involved in the troubleshooting process and entered the issue into the corrective action program as CR 2011-009767. This finding is more than minor because it impacted the configuration control aspect of the Barrier Integrity Cornerstone and adversely affected the Cornerstone objective to maintain functionality of containment. Specifically, as part of a planned troubleshooting activity, a protective isolation feature was removed from service on multiple occasions that collectively exceeded the allowed LCO time for the system. The inspectors determined that the finding was of very low safety significance (Green) since the finding did not represent an actual open pathway in the physical integrity of the reactor containment. This finding has a crosscutting aspect in the area of human performance in that NMPNS did not use conservative assumptions in decision making when performing multiple entries into TS |
| Site: | Nine Mile Point  |
|---|---|
| Report | IR 05000220/2011005 Section 1R15 |
| Date counted | Dec 31, 2011 (2011Q4) |
| Type: | Finding: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | K Kolaczyk T Fish G Dentel J Brand N Perry E Keighley T Ziev B Fuller D Dempsey |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
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Finding - Nine Mile Point - IR 05000220/2011005 | |||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Nine Mile Point) @ 2011Q4
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