Event Notification Report for September 27, 2024

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
09/26/2024 - 09/27/2024

EVENT NUMBERS
57243 57338 57339
Part 21
Event Number: 57243
Rep Org: RSSC dba Marmon
Licensee:
Region: 1
City: East Granby   State: CT
County:
License #:
Agreement: N
Docket:
NRC Notified By: Phillip Sargenski
HQ OPS Officer: Adam Koziol
Notification Date: 07/25/2024
Notification Time: 11:05 [ET]
Event Date: 07/23/2024
Event Time: 00:00 [EDT]
Last Update Date: 09/26/2024
Emergency Class: Non Emergency
10 CFR Section:
21.21(d)(3)(i) - Defects And Noncompliance
Person (Organization):
Lilliendahl, Jon (R1DO)
Feliz-Adorno, Nestor (R3DO)
Azua, Ray (R4DO)
Part 21/50.55 Reactors, - (EMAIL)
Event Text
EN Revision Imported Date: 9/27/2024

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:
RSSC 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).


Power Reactor
Event Number: 57338
Facility: Grand Gulf
Region: 4     State: MS
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: Joshua Hubbard
HQ OPS Officer: Bill Nytko
Notification Date: 09/25/2024
Notification Time: 02:06 [ET]
Event Date: 09/24/2024
Event Time: 22:04 [CDT]
Last Update Date: 09/25/2024
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
Person (Organization):
Young, Cale (R4DO)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation
Event Text
HIGH PRESSURE CORE SPRAY INOPERABLE

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

"On September 24, 2024, at 2204 CDT, Grand Gulf Nuclear Station (GGNS) was conducting surveillance testing on the high pressure core spray (HPCS) division III diesel generator. During testing, the HPCS pump breaker unexpectedly tripped after the HPCS diesel generator started and powered the safety bus. The breaker performed its motor protection function and tripped due to an over-frequency indication.

"The event is being reported in accordance with 10 CFR 50.72(b)(3)(v)(D) as an event or condition which could have prevented the fulfillment of a safety function.

"Troubleshooting is in progress. HPCS, a single-train system, will remain inoperable until the condition is corrected.

"All sources of offsite power are available. No other safety systems are inoperable. Reactor core isolation cooling was verified to be operable per GGNS Technical Specification 3.5.1.B.1.

"The NRC Senior Resident has been notified."


Fuel Cycle Facility
Event Number: 57339
Facility: Global Nuclear Fuel - Americas
RX Type: Uranium Fuel Fabrication
Comments: Leu Conversion (Uf6 To Uo2)
Leu Fabrication
Lwr Commerical Fuel
Region: 2
City: Wilmington   State: NC
County: New Hanover
License #: SNM-1097
Docket: 07001113
NRC Notified By: Phillip Ollis
HQ OPS Officer: Tenisha Meadows
Notification Date: 09/25/2024
Notification Time: 15:07 [ET]
Event Date: 09/25/2024
Event Time: 11:10 [EDT]
Last Update Date: 09/25/2024
Emergency Class: Non Emergency
10 CFR Section:
PART 70 APP A (c) - Offsite Notification/News Rel
Person (Organization):
Suber, Gregory (R2DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Event Text
CONCURRENT REPORT FOR FIRE DOOR IMPAIRMENT

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

"At approximately 1110 EDT, on September 25, 2024, the New Hanover County Deputy Fire Marshall was notified that a non-IROFS (Item Relied On For Safety) fire door was damaged and incapable of fulfilling its function. Specifically, the door will not close properly and seal with the opposing door. A fire watch was initiated and a replacement door is being obtained. Because the New Hanover County Deputy Fire Marshall was notified, a concurrent notification to the NRC Operations Center is being made per 10 CFR 70, Appendix A(c)."

The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:

The licensee plans to notify the NRC Region 2 office and the state of North Carolina concerning this event report.