Event Notification Report for May 07, 2025

EN Revision Imported Date: 5/7/2025

EN Revision Text: PART 21 REPORT - NON-COMPLAINT INSULATED CONDUCTOR

The following is a synopsis of information received via fax:
A reel of insulated conductor was found non-compliant due to failure of insulation tensile and elongation at break test following air oven aging. Wire from the non-compliant reel was delivered to nine plants.
Affected plants: Wolf Creek, Dresden, LaSalle, Limerick, Peach Bottom, Arkansas Nuclear One, Waterford, Susquehanna, and Davis Besse.

Reporting company point of contact:
RSCC Wire and Cable LLC
dba Marmon Industrial Energy and Infrastructure
20 Bradley Park Road
East Granby, CT 06026

Phillip Sargenski - Quality Assurance Manager
Phone: 860-653-8376
Fax: 860-653-8301
Phillip.sargenski@marmoniei.com

* * * UPDATE ON 08/23/24 AT 1315 EDT FROM PHILLIP SARGENSKI TO JOSUE RAMIREZ * * *

The vendor provided the final report for this event listing corrective actions and the estimated completion dates.
Notified R1DO (Lilliendahl), R3DO (Skokowski), R4DO (Vossmar), and Part 21 group (Email).

* * * UPDATE ON 09/04/24 AT 1044 EDT FROM PHILLIP SARGENSKI TO NESTOR MAKRIS * * *

The vendor notified the NRC that they plan to send additional finding data regarding this notification via fax and/or email within the next day or two.
Notified R1DO (Ferdas), R3DO (Hills), R4DO (Drake), and Part 21 group (Email).

* * * UPDATE ON 09/06/24 AT 1327 EDT FROM PHILLIP SARGENSKI TO ADAM KOZIOL * * *

The vendor identified an additional non-compliant shipment of insulated conductor.
Affected plant: Calvert Cliffs
Notified R1DO (Ferdas), R3DO (Hills), R4DO (Drake), and Part 21 group (Email).

* * * UPDATE ON 9/17/24 AT 1641 EDT FROM PHILLIP SARGENSKI TO ROBERT THOMPSON * * *

The vendor identified an additional non-compliant shipment of insulated conductor.
Affected customer: Curtiss-Wright Nuclear Division.
Notified R1DO (Werkheiser), R3DO (Ziolkowski), R4DO (Azua), and Part 21 group (Email).

* * * UPDATE ON 9/26/24 AT 1030 EDT FROM PHILLIP SARGENSKI TO ADAM KOZIOL * * *

The vendor is continuing to conduct inventory sampling which involves a 14 day aging test. Due to the length of testing, the vendor plans on submitting their final report the week of October 7, 2024.
Notified R1DO (Dimitriadis), R3DO (Havertape), R4DO (Young), and Part 21 group (Email).

* * * UPDATE ON 10/28/24 AT 1121 EDT FROM PHILLIP SARGENSKI TO BRIAN P. SMITH * * *

The vendor has decided to expand the scope and breadth of the review to ensure they have identified and corrected for the full extent of the matter. Additional time is needed to complete this review.
Notified R1DO (Eve), R3DO (Edwards), R4DO (Warnick), and Part 21 group (Email).

* * * UPDATE ON 02/13/25 AT 1125 EDT FROM CAROL GROSSO TO IAN HOWARD * * *

The vendor has decided to expand the scope and breadth of the review to ensure they have identified and corrected for the full extent of the matter. RSCC is reviewing shipments from the past 18 months to ensure it has accounted for all non-conforming products. Additional cables related to this scope have been identified and impacted customers have been notified.

***UPDATE ON 03/28/2025 AT 1039 EDT FROM CAROL GROSSO TO RODNEY CLAGG***

The vendor has identified cable(s) that could be affected and have advised customers of the issue and requested that samples be returned to the vendor facility for further verification testing, which is a process that remains ongoing. This testing will confirm the cable's safety related function. Once the testing is complete, the vendor will notify the NRC with an updated and final Part 21 report.

Notified R1DO (Arner), R3DO (Gilliam), R4DO (Deese), and Part 21 group (Email).

* * * UPDATE ON 05/06/2025 AT 0935 EDT FROM CAROL GROSSO TO JOSUE RAMIREZ * * *

The vendor provided an update on their ongoing evaluation. The vendor continues to receive product from their customers and perform their evaluations. The process is still ongoing.

Notified R1DO (Eve), R3DO (Ruiz), R4DO (Dodson), and Part 21 group (Email).

EN Revision Imported Date: 5/7/2025

EN Revision Text: PART 21 INTERIM REPORT OF DEVIATION

The following is a synopsis of information provided by Curtiss-Wright via email:

On January 7, 2025, Rosemount notified Curtiss-Wright Middleburg Heights regarding Generation 3 quick disconnect connectors (QDCs) with no connection on at least one wire, with the bad connection not favoring one specific wire. Rosemount identified five Generation 3 QDCs out of 122 tested, where the issue is specifically in the continuity of the wires. All Generation 3 QDCs from the order are currently on hold at Rosemount and have not been shipped to any customer.

On January 9, 2025, Rosemount sent Curtiss-Wright two of the five questionable Generation 3 QDCs. Curtiss-Wright performed an initial evaluation to confirm the issue. The results were initially confirmed, but with minor manipulation the Generation 3 QDCs no longer showed negative results. Curtiss-Wright and Rosemount have agreed to send all the questionable Generation 3 QDCs to an outside testing entity to help perform a failure analysis to assist in determining the root cause.

Curtiss-Wright anticipates completing the evaluation by Tuesday, May 6, 2025.

There are no known plants affected.

Contact Information:
Tim Franchuk
Curtiss-Wright Nuclear Division
Director of Quality Assurance
(513) 201-2176
tfranchuk@curtisswright.com

* * * UPDATE ON 05/06/25 AT 1351 EDT FROM MARGIE HOVER TO JOSUE RAMIREZ * * *

Curtiss-Wright has completed their evaluation of the deviation described in their interim report submitted to the NRC on March 12, 2025. Curtiss-Wright concluded that the deviation does not constitute a reportable defect. The occurrence was isolated to the Generation 3 quick disconnect connectors (QDCs) provided to Rosemount on a specific order. All questionable Generation 3 QDCs have been scrapped by Rosemount and were not provided to any utility.

Notified R3DO (Ruiz) and Part 21 Group (Email)

60-DAY OPTIONAL TELEPHONIC NOTIFICATION FOR AN INVALID CONTAINMENT ISOLATION

The following information was provided by the licensee via phone and email:

"On March 14, 2025, at 1523 EST, while Unit 1 was operating at 99.5 percent power in mode 1, the unit experienced a loss of the 24/48V DC bus (division 2) due to a failed battery charger. The 24/48V DC bus was restored by installing a temporary charger.

"This event is reportable per 10 CFR 50.73(a)(2)(iv)(A) because it was not part of a pre-planned sequence and resulted in the invalid, partial actuation of containment isolation valves (CIVs) in both the primary containment and secondary containment systems, with all systems responding normally.

"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."