05000317/FIN-2010301-01
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | The following violation of very low safety significance (Green) was identified by the licensee and is a violation of NRC requirements which meets the criteria of the NRC Enforcement Policy, for being dispositioned as a Non-Cited Violation. During development of the Calvert Cliffs 2010 initial license exam, Constellation observed the simulator modeling required almost full closure of high pressure safety injection (HPSI) header isolation valves by operators to establish flow rate below the maximum limit following recirculation actuation. They noted the same valves in the plant control room must be throttled almost fully open by operators under the same conditions. This issue is a violation of 10CFR55.46, \"Simulation Facilities,\" because Constellation did not maintain the simulator such that it would demonstrate the expected plant response to accident conditions as designed. The finding is of very low safety significance (Green)because the discrepancy did not have an adverse impact on operator actions such that safety related equipment was made inoperable during normal operations or in response to an actual plant transient. Constellation entered this issue into their corrective action program as CR 2010-009686. |
| Site: | Calvert Cliffs  |
|---|---|
| Report | IR 05000317/2010301 Section 4OA7 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | NCV: Green |
| cornerstone | No Cornerstone |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | D Silk B Fuller S Hansell P Presby |
| INPO aspect | |
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Finding - Calvert Cliffs - IR 05000317/2010301 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Calvert Cliffs) @ 2010Q3
Self-Identified List (Calvert Cliffs)
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