ML25051A030
| ML25051A030 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 02/19/2025 |
| From: | Milton S Duke Energy Corp |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| 57560, EN 57560 | |
| Download: ML25051A030 (1) | |
Text
From:
Milton, Scott T To:
Hoc, HOO X Cc:
Andrews, Sherry E
Subject:
[External_Sender] Event # 57560 Catawba Part 21 Notification Date:
Wednesday, February 19, 2025 11:21:52 AM Attachments:
Duke Catawba Part 21 EN - FINAL.pdf See attached Part 21 notification information associated with event # 57560 reported on 02/19/25 at 1050 est.
Please refer any additional question to Scott Milton, Nuclear Support Services Manager, at (803)701-3488.
Respectfully, Scott Milton Nuclear Support Services Manager Catawba Nuclear Station Desk (803) 701-3488 l Mobile (704) 351-4661
Part 21 Rep Org: Duke Energy, Inc.
Licensee: Duke Energy, Inc.
Region: 2 City: York State: SC Docket: 05000413 (unit 1), 05000414 (unit 2)
NRC Notified By: Scott Milton (803)701-3488 Notification Date: 02/19/2025 Emergency Class: Non-Emergency 10 CFR Section: 21.21(d)(3)(i) - Defects and Noncompliance Event Text PART 21 - LOVE CONTROLLER WORKMANSHIP ISSUES Catawba Nuclear Station has determined that a defect associated with Love Controllers identified with Limpet supplier part number 54-834-838-8187-8160-8134-8174 is reportable under 10 CFR Part 21.
The subject parts were procured as commercial grade items and dedicated by Duke Energy, Inc., solely for use at Catawba Nuclear Station. Manufacturer circuit board workmanship issues associated with the Love Controller resulted in a failed controller installed in Catawbas 2A1 Emergency Diesel Generator Room Ventilation train and resulted in Catawba submitting Licensee Event Report (LER) 2024-001-00. The loss of one Emergency Diesel Room Ventilation Fan, under certain conditions, could cause a loss of safety function at elevated outside air temperatures and could result in a substantial safety hazard. All other Love Controllers installed and in Duke Energys warehouse were subsequently inspected for similar workmanship issues.
The NRC senior resident inspector has been notified. No other nuclear plants were affected as the part has not been sold or transferred to another facility.