ENS 50172: Difference between revisions
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StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
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| event date = 06/04/2014 PDT | | event date = 06/04/2014 PDT | ||
| last update date = 06/04/2014 | | last update date = 06/04/2014 | ||
| title = Part 21 - Defect Identified | | title = Part 21 - Defect Identified in Single Loop Operation Minimum Critical Power Ratio | ||
| event text = The following is a synopsis of information received via facsimile from AREVA: | | event text = The following is a synopsis of information received via facsimile from AREVA: | ||
AREVA identified a defect is in the calculation of the single loop operation (SLO) minimum critical power ratio (MCPR) operating limits for Browns Ferry Units 1, 2, and 3. Specifically, the defect is associated with the usage of non-conservative inputs in the SLO pump seizure analyses for the three plants, which results in non-conservative limits for SLO. | AREVA identified a defect is in the calculation of the single loop operation (SLO) minimum critical power ratio (MCPR) operating limits for Browns Ferry Units 1, 2, and 3. Specifically, the defect is associated with the usage of non-conservative inputs in the SLO pump seizure analyses for the three plants, which results in non-conservative limits for SLO. | ||
Latest revision as of 20:50, 1 March 2018
| Where | |
|---|---|
| Areva Inc Richland, Washington (NRC Region 4) | |
| Organization: | Areva Inc |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+8.37 h0.349 days <br />0.0498 weeks <br />0.0115 months <br />) | |
| Opened: | Alan B Meginnis 15:22 Jun 4, 2014 |
| NRC Officer: | Charles Teal |
| Last Updated: | Jun 4, 2014 |
| 50172 - NRC Website | |