ML26048A182
| ML26048A182 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 01/21/2026 |
| From: | Jim Hickey Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| EN 58123 | |
| Download: ML26048A182 (0) | |
Text
02-12-2026 07:03:41 U.S. Nuclear Regulatory Commission Operations Center Report 18 02-12-2026 07:03:41 U.S. Nuclear Regulatory Commission Operations Center Report Event #:
58123 Event Type:
Part 21 Reporting Org:
Sequoyah Nuclear Plant Notify Date/Time:
2026-01-21 10:17 (EST)
Licensee:
Sequoyah Nuclear Plant Event Date/Time:
2026-01-20 15:30 (EST)
Modify Date/Time:
2026-01-21 10:30 Region:
2 City:
Soddy-Daisy Agreement State:
Yes County:
Hamilton License #:
State:
TN Notified by:
Jeremy Hickey Notifications:
Michel, Eric R2DO HOO:
Josue Ramirez Part 21/50.55 Reactors, - EMAIL Emergency Class:
Non Emergency 10 CFR Sections:
21.21(d)(3)(i)
Defects And Noncompliance PART 21 - DEFECTIVE LIMITORQUE ACTUATOR ASSEMBLIES The following information was provided by the licensee via phone and email:
On January 20, 2026, TVA Sequoyah Nuclear Plant completed a Part 21 evaluation concerning two Flowserve Limitorque actuator/motor assemblies. The assembly model numbers are 'SMB-2' and 'SB-1'. The evaluation of the
'SMB-2' assembly was for the motor pinion gear found installed backwards. The evaluation of the 'SB-1' assembly was for insufficient grease applied to the limit switch gearbox. The evaluation determined that a defect existed for these basic components. The conditions were corrected prior to installation in the containment spray system.
The NRC Resident has been notified.
A written notification will be provided within 30 days.
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
The only plant known to be affected at the time of the report is Sequoyah Unit 1.
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