ML26048A134
| ML26048A134 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 02/12/2026 |
| From: | Van Der Kamp D Nebraska Public Power District (NPPD) |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| EN 56679 | |
| Download: ML26048A134 (0) | |
Text
02-12-2026 07:03:41 U.S. Nuclear Regulatory Commission Operations Center Report 3
02-12-2026 07:03:41 U.S. Nuclear Regulatory Commission Operations Center Report Event #:
56679 Event Type:
Part 21 Reporting Org:
Cooper Nuclear Power Plant Notify Date/Time:
2023-08-15 13:20 (EDT)
Licensee:
Cooper Nuclear Power Plant Event Date/Time:
2023-07-05 00:00 (CDT)
Modify Date/Time:
2023-08-15 13:54 Region:
4 City:
Brownville Agreement State:
Yes County:
Nemaha License #:
State:
NE Notified by:
David Van Der Kamp Notifications:
Werner, Greg R4DO HOO:
Brian P. Smith Part 21/50.55 Reactors, - EMAIL Emergency Class:
Non Emergency 10 CFR Sections:
21.21(d)(3)(i)
Defects And Noncompliance PART 21 REPORT - RELAY MECHANICAL PROBLEM The following information is a synopsis provided by the licensee via facsimile:
Cooper Nuclear Station completed an internal Part 21 evaluation concerning a batch of relays procured under the same purchase order from General Electric Hitachi. Following the failure of a relay, an independent laboratory identified a mechanical problem with the hinged armature, resulting in the relay potentially failing to return to its de-energized state.
The relays are not currently installed in a safety related application. The NRC Resident has been notified. A written notification will be provided within 30 days.
Affected known plants include only Cooper at the time of the notification.
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