ENS 56683: Difference between revisions
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| NRC officer = Karen Cotton-Gross | | NRC officer = Karen Cotton-Gross | ||
| event date = 06/22/2023 00:00 EDT | | event date = 06/22/2023 00:00 EDT | ||
| last update date = | | last update date = 10/05/2023 | ||
| title = Part 21 Interim Report - Failure of Curtiss Wright Supplied Safety Related Relay | | title = Part 21 Interim Report - Failure of Curtiss Wright Supplied Safety Related Relay | ||
| event text = The following is a summary of the Part 21 report provided by Curtiss Wright: | | event text = The following is a summary of the Part 21 report provided by Curtiss Wright: | ||
| Line 21: | Line 21: | ||
The relay was returned to CW for evaluation; however, CW could not duplicate the failure. As the relay is questionable for reliable service, CW is having the relay returned to Tyco for their evaluation. Once the evaluation is complete, the current report will be updated. CW anticipates an update to the notification with final results by October 15th. | The relay was returned to CW for evaluation; however, CW could not duplicate the failure. As the relay is questionable for reliable service, CW is having the relay returned to Tyco for their evaluation. Once the evaluation is complete, the current report will be updated. CW anticipates an update to the notification with final results by October 15th. | ||
Affected plant: Catawba | Affected plant: Catawba | ||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2023/ | * * * UPDATE ON OCTOBER 5, 2023 AT 1146 EDT FROM JENNIFER HARRISON TO KAREN COTTON * * * | ||
The following information was provided by Curtiss Wright via email: | |||
The relay was subsequently returned to TYCO for their evaluation. TYCO tested the relay with and without the LL auxiliary switch option and could not duplicate the failure. In all tested conditions, the relay performed within manufacturer specifications, and with no contact binding. | |||
As the noted failure could not be reproduced by Curtiss-Wright or TYCO, there is no evidence of part malfunction and thus no further evaluation or notification applies. | |||
Notified RDO2 (Miller) and Part 21/50.55 Reactors | |||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2023/20231006en.html#en56683 | |||
}} | }} | ||
{{ENS-Nav}} | {{ENS-Nav}} | ||
Latest revision as of 06:30, 6 October 2023
| Where | |
|---|---|
| Curtiss Wright Flow Control Co. Cincinnati, Ohio (NRC Region 3) | |
| Organization: | Curtiss Wright Flow Control Co. |
| Reporting | |
| 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component | |
| Time - Person (Reporting Time:+1353.28 h56.387 days <br />8.055 weeks <br />1.854 months <br />) | |
| Opened: | Tim Franchuk 13:17 Aug 17, 2023 |
| NRC Officer: | Karen Cotton-Gross |
| Last Updated: | Oct 5, 2023 |
| 56683 - NRC Website | |