Event Notification Report for November 22, 2022
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
11/21/2022 - 11/22/2022
Part 21
Event Number: 56247
Rep Org: Curtiss-Wright Nuclear Division
Licensee: QualTech NP, Curtiss-Wright Nuclear Division
Region: 3
City: Cincinnati State: OH
County:
License #:
Agreement: Y
Docket:
NRC Notified By: QualTech NP
HQ OPS Officer: Howie Crouch
Licensee: QualTech NP, Curtiss-Wright Nuclear Division
Region: 3
City: Cincinnati State: OH
County:
License #:
Agreement: Y
Docket:
NRC Notified By: QualTech NP
HQ OPS Officer: Howie Crouch
Notification Date: 11/30/2022
Notification Time: 13:53 [ET]
Event Date: 11/22/2022
Event Time: 00:00 [EST]
Last Update Date: 02/06/2023
Notification Time: 13:53 [ET]
Event Date: 11/22/2022
Event Time: 00:00 [EST]
Last Update Date: 02/06/2023
Emergency Class: Non Emergency
10 CFR Section:
21.21(a)(2) - Interim Eval Of Deviation
10 CFR Section:
21.21(a)(2) - Interim Eval Of Deviation
Person (Organization):
Peterson, Hironori (R3DO)
Part 21/50.55 Reactors, - (EMAIL)
Peterson, Hironori (R3DO)
Part 21/50.55 Reactors, - (EMAIL)
EN Revision Imported Date: 2/7/2023
EN Revision Text: PART 21 REPORT - INTERIM REPORT FOR EATON TRM5 TIMING RELAYS
The following is a summary of information provided by the Curtiss-Wright Nuclear Division via email:
QualTech NP discovered the presence of a programmable logic device (a flash-based CMOS (complementary metal-oxide-semiconductor) microcontroller) in the timing relays that was not previously identified for this family of relays. The only affected facility is Perry Nuclear Plant. This could potentially lead to unevaluated electromagnetic interference or radiofrequency interference issues when installed in the plant.
For questions concerning this potential 10 CFR 21 issue, please contact:
Tim Franchuk
Quality Assurance Director
QualTech NP, Curtiss-Wright Nuclear Division
(513) 528-7900, ext. 176
* * * UPDATE ON 02/06/23 AT 1051 EST FROM MARGIE HOVER TO KERBY SCALES * * *
QualTech NP provided an update identifying other facilities that are affected by the Eaton TMR5 timing relays. The other affected facilities are Calvert Cliffs, Beaver Valley, Diablo Canyon, Arkansas Nuclear One, and Comanche Peak.
Notified R1DO (Cahill), R4DO (Gaddy), R3DO (Szwarc) via phone and the Part 21 group via email.
EN Revision Text: PART 21 REPORT - INTERIM REPORT FOR EATON TRM5 TIMING RELAYS
The following is a summary of information provided by the Curtiss-Wright Nuclear Division via email:
QualTech NP discovered the presence of a programmable logic device (a flash-based CMOS (complementary metal-oxide-semiconductor) microcontroller) in the timing relays that was not previously identified for this family of relays. The only affected facility is Perry Nuclear Plant. This could potentially lead to unevaluated electromagnetic interference or radiofrequency interference issues when installed in the plant.
For questions concerning this potential 10 CFR 21 issue, please contact:
Tim Franchuk
Quality Assurance Director
QualTech NP, Curtiss-Wright Nuclear Division
(513) 528-7900, ext. 176
* * * UPDATE ON 02/06/23 AT 1051 EST FROM MARGIE HOVER TO KERBY SCALES * * *
QualTech NP provided an update identifying other facilities that are affected by the Eaton TMR5 timing relays. The other affected facilities are Calvert Cliffs, Beaver Valley, Diablo Canyon, Arkansas Nuclear One, and Comanche Peak.
Notified R1DO (Cahill), R4DO (Gaddy), R3DO (Szwarc) via phone and the Part 21 group via email.
Power Reactor
Event Number: 56236
Facility: Monticello
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: Jacob Styrbicky
HQ OPS Officer: Ian Howard
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: Jacob Styrbicky
HQ OPS Officer: Ian Howard
Notification Date: 11/22/2022
Notification Time: 17:35 [ET]
Event Date: 11/22/2022
Event Time: 15:30 [CST]
Last Update Date: 11/22/2022
Notification Time: 17:35 [ET]
Event Date: 11/22/2022
Event Time: 15:30 [CST]
Last Update Date: 11/22/2022
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(xi) - Offsite Notification
10 CFR Section:
50.72(b)(2)(xi) - Offsite Notification
Person (Organization):
Stoedter, Karla (R3DO)
Stoedter, Karla (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
NOTIFICATION OF ENVIRONMENTAL REPORT TO ANOTHER GOVERNMENT AGENCY
The following information was provided by the licensee via email:
"On 11/22/2022, Monticello Nuclear Generating Plant initiated a voluntary communication to the State of Minnesota after receiving analysis results for an on-site monitoring well that indicated tritium activity above the [Offsite Dose Calculation Manual] ODCM and Nuclear Energy Institute (NEI) Groundwater Protection Initiative (GPI) reporting levels. The source of the tritium is under investigation and the station will continue to monitor and sample accordingly. This notification is being made solely as a four-hour, non-emergency report for a Notification of Other Government Agency. This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi). There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
The following information was provided by the licensee via email:
"On 11/22/2022, Monticello Nuclear Generating Plant initiated a voluntary communication to the State of Minnesota after receiving analysis results for an on-site monitoring well that indicated tritium activity above the [Offsite Dose Calculation Manual] ODCM and Nuclear Energy Institute (NEI) Groundwater Protection Initiative (GPI) reporting levels. The source of the tritium is under investigation and the station will continue to monitor and sample accordingly. This notification is being made solely as a four-hour, non-emergency report for a Notification of Other Government Agency. This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi). There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."