Event Notification Report for June 22, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
06/21/2023 - 06/22/2023
Power Reactor
Event Number: 56585
Facility: Robinson
Region: 2 State: SC
Unit: [2] [] []
RX Type: [2] W-3-LP
NRC Notified By: Brant Sostak
HQ OPS Officer: Thomas Herrity
Region: 2 State: SC
Unit: [2] [] []
RX Type: [2] W-3-LP
NRC Notified By: Brant Sostak
HQ OPS Officer: Thomas Herrity
Notification Date: 06/22/2023
Notification Time: 13:50 [ET]
Event Date: 06/22/2023
Event Time: 10:35 [EDT]
Last Update Date: 06/22/2023
Notification Time: 13:50 [ET]
Event Date: 06/22/2023
Event Time: 10:35 [EDT]
Last Update Date: 06/22/2023
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS Actuation - Critical 50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS Actuation - Critical 50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
Person (Organization):
Miller, Mark (R2DO)
Miller, Mark (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | A/R | Y | 100 | Power Operation | 0 | Hot Standby |
EN Revision Imported Date: 6/27/2023
EN Revision Text: AUTOMATIC REACTOR TRIP OCCURRED DURING PROTECTION SYSTEM TESTING
The following information was provided by the licensee via email:
"At 1035, on June 22, 2023, with Unit 2 in Mode 1 at 100% power, the reactor automatically tripped due to `A' train reactor trip breaker and `B' train reactor trip bypass breaker opening during testing. The trip was not complex, with all systems responding normally post-trip. MST-021 (Reactor Protection Logic Train `B' At Power) testing was in progress at the time of trip.
"Operations responded and stabilized the plant. Decay heat is being removed by discharging steam to the main condenser using the turbine bypass valves.
"Due to the Reactor Protection System actuation while critical, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B).
"As a result of the reactor trip, emergency feedwater actuated; therefore, this event is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(iv)(A).
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
EN Revision Text: AUTOMATIC REACTOR TRIP OCCURRED DURING PROTECTION SYSTEM TESTING
The following information was provided by the licensee via email:
"At 1035, on June 22, 2023, with Unit 2 in Mode 1 at 100% power, the reactor automatically tripped due to `A' train reactor trip breaker and `B' train reactor trip bypass breaker opening during testing. The trip was not complex, with all systems responding normally post-trip. MST-021 (Reactor Protection Logic Train `B' At Power) testing was in progress at the time of trip.
"Operations responded and stabilized the plant. Decay heat is being removed by discharging steam to the main condenser using the turbine bypass valves.
"Due to the Reactor Protection System actuation while critical, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B).
"As a result of the reactor trip, emergency feedwater actuated; therefore, this event is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(iv)(A).
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
Agreement State
Event Number: 56587
Rep Org: SC Dept of Health & Env Control
Licensee: DAK Americas, LLC
Region: 1
City: Columbia State: SC
County:
License #: 189
Agreement: Y
Docket:
NRC Notified By: Korina Koci
HQ OPS Officer: Bill Gott
Licensee: DAK Americas, LLC
Region: 1
City: Columbia State: SC
County:
License #: 189
Agreement: Y
Docket:
NRC Notified By: Korina Koci
HQ OPS Officer: Bill Gott
Notification Date: 06/22/2023
Notification Time: 16:36 [ET]
Event Date: 06/22/2023
Event Time: 16:40 [EDT]
Last Update Date: 03/13/2024
Notification Time: 16:36 [ET]
Event Date: 06/22/2023
Event Time: 16:40 [EDT]
Last Update Date: 03/13/2024
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Eve, Elise (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Eve, Elise (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
EN Revision Imported Date: 3/14/2024
EN Revision Text: AGREEMENT STATE REPORT - STUCK SOURCE
The following information was provided by the South Carolina Department of Health and Environmental Control [the Department] via email:
"The South Carolina Department of Health and Environmental Control was notified via telephone at 1515 EDT on 06/22/23, that during the commissioning of a new device [at their Gaston S.C. facility] the strip source of the fixed gauging device was stuck between the source housing and dip-tube. The licensee is reporting that the fixed gauge is a Berthold Technologies USA, LLC., LB 300 IRL Type III Series gauging device, housing a Cs-137 Berthold Technologies USA, LLC., sealed source Model BT-MPLM. The licensee is reporting that no immediate health and safety concerns have been identified. The licensee is reporting that a consultant has been contacted to perform the repair. A department inspector will be dispatched to the facility to conduct an on-site investigation. This event is still under investigation by the Department."
* * * UPDATE ON 7/21/2023 at 1058 EDT FROM KORINA KOCI TO SAMUEL COLVARD * * *
"A Department inspector was dispatched to the facility on June 23, 2023. The licensee submitted their 30-day written report on July 14, 2023. The licensee is reporting that the serial number of the Berthold Technologies USA, LLC., LB 300 IRL Type III Series gauging device is 40876-01-10009. The licensee also reports that the serial number of the sealed source containing 0.74 GBq (20 mCi) of Cs-137, (Model BT-MPLM) is G0990_22. The device was removed from service by a licensed contractor and will remain in the site's radiation storage room until the licensee and manufacturer determine the best option moving forward. The licensee reports that no regulatory exposure limits were exceeded as a result of this event, and that the sealed source remained housed for the duration of this incident. This event is still under investigation by the Department."
Notified R1DO (Carfang) and NMSS Events Notification via email.
* * * UPDATE ON 3/13/24 AT 1530 EDT FROM KORINA KOCI TO ADAM KOZIOL * * *
"The licensee disposed/transferred the model BT-MPLM sealed source (serial number G0990_22) on 12/13/23. The Berthold Technologies USA, LLC., LB 300 IRL Type III Series source holder (serial number 40876-01-10009) was also disposed. This event is considered closed."
Notified R1DO (Jackson) and NMSS Events (email)
EN Revision Text: AGREEMENT STATE REPORT - STUCK SOURCE
The following information was provided by the South Carolina Department of Health and Environmental Control [the Department] via email:
"The South Carolina Department of Health and Environmental Control was notified via telephone at 1515 EDT on 06/22/23, that during the commissioning of a new device [at their Gaston S.C. facility] the strip source of the fixed gauging device was stuck between the source housing and dip-tube. The licensee is reporting that the fixed gauge is a Berthold Technologies USA, LLC., LB 300 IRL Type III Series gauging device, housing a Cs-137 Berthold Technologies USA, LLC., sealed source Model BT-MPLM. The licensee is reporting that no immediate health and safety concerns have been identified. The licensee is reporting that a consultant has been contacted to perform the repair. A department inspector will be dispatched to the facility to conduct an on-site investigation. This event is still under investigation by the Department."
* * * UPDATE ON 7/21/2023 at 1058 EDT FROM KORINA KOCI TO SAMUEL COLVARD * * *
"A Department inspector was dispatched to the facility on June 23, 2023. The licensee submitted their 30-day written report on July 14, 2023. The licensee is reporting that the serial number of the Berthold Technologies USA, LLC., LB 300 IRL Type III Series gauging device is 40876-01-10009. The licensee also reports that the serial number of the sealed source containing 0.74 GBq (20 mCi) of Cs-137, (Model BT-MPLM) is G0990_22. The device was removed from service by a licensed contractor and will remain in the site's radiation storage room until the licensee and manufacturer determine the best option moving forward. The licensee reports that no regulatory exposure limits were exceeded as a result of this event, and that the sealed source remained housed for the duration of this incident. This event is still under investigation by the Department."
Notified R1DO (Carfang) and NMSS Events Notification via email.
* * * UPDATE ON 3/13/24 AT 1530 EDT FROM KORINA KOCI TO ADAM KOZIOL * * *
"The licensee disposed/transferred the model BT-MPLM sealed source (serial number G0990_22) on 12/13/23. The Berthold Technologies USA, LLC., LB 300 IRL Type III Series source holder (serial number 40876-01-10009) was also disposed. This event is considered closed."
Notified R1DO (Jackson) and NMSS Events (email)
Agreement State
Event Number: 56589
Rep Org: WA Office of Radiation Protection
Licensee: Mistras
Region: 4
City: Bellingham State: WA
County:
License #: WN-IR011-1
Agreement: Y
Docket:
NRC Notified By: Jasmin Hernandez
HQ OPS Officer: Adam Koziol
Licensee: Mistras
Region: 4
City: Bellingham State: WA
County:
License #: WN-IR011-1
Agreement: Y
Docket:
NRC Notified By: Jasmin Hernandez
HQ OPS Officer: Adam Koziol
Notification Date: 06/23/2023
Notification Time: 19:53 [ET]
Event Date: 06/22/2023
Event Time: 14:19 [PDT]
Last Update Date: 06/23/2023
Notification Time: 19:53 [ET]
Event Date: 06/22/2023
Event Time: 14:19 [PDT]
Last Update Date: 06/23/2023
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Kellar, Ray (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Kellar, Ray (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - SOURCE RECOVERY MALFUNCTION
The following is a summary of the information provided by the Washington State Office of Radiation Protection via email:
On 6/22/23 at 1419 PDT, the licensee identified that a 56.4 Ci Ir-192 radiography source could not be retracted into the exposure device (QSA Model 880D) due to a crank malfunction. The radiographer immediately contacted the Radiation Safety Officer who provided source recovery/retrieval actions along with crank mechanism fixes. The radiographer secured the source in the exposure device at 1422 PDT. The problem with the retrieval was identified as a loose securing nut that caused the crank to spin freely and the drive cable to come out of the crank conduit.
During the incident, the radiographer's survey meter read 20 mr/hr at the crank location. A radiographer assistant expanded the boundaries and ensured the general public was not affected. The radiographer's total direct dosimeter reading after 6 normal radiography exposures and the source recovery actions were complete was 3 mRem. The incident took place at a temporary job site in Anacortes, WA. There were no overexposures or spread of contamination.
WA Incident Number: WA-23-010
The following is a summary of the information provided by the Washington State Office of Radiation Protection via email:
On 6/22/23 at 1419 PDT, the licensee identified that a 56.4 Ci Ir-192 radiography source could not be retracted into the exposure device (QSA Model 880D) due to a crank malfunction. The radiographer immediately contacted the Radiation Safety Officer who provided source recovery/retrieval actions along with crank mechanism fixes. The radiographer secured the source in the exposure device at 1422 PDT. The problem with the retrieval was identified as a loose securing nut that caused the crank to spin freely and the drive cable to come out of the crank conduit.
During the incident, the radiographer's survey meter read 20 mr/hr at the crank location. A radiographer assistant expanded the boundaries and ensured the general public was not affected. The radiographer's total direct dosimeter reading after 6 normal radiography exposures and the source recovery actions were complete was 3 mRem. The incident took place at a temporary job site in Anacortes, WA. There were no overexposures or spread of contamination.
WA Incident Number: WA-23-010
Part 21
Event Number: 56683
Rep Org: Curtiss Wright Flow Control Co.
Licensee: Curtiss Wright Flow Control Co.
Region: 3
City: Cincinnati State: OH
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Tim Franchuk
HQ OPS Officer: Karen Cotton-Gross
Licensee: Curtiss Wright Flow Control Co.
Region: 3
City: Cincinnati State: OH
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Tim Franchuk
HQ OPS Officer: Karen Cotton-Gross
Notification Date: 08/17/2023
Notification Time: 13:17 [ET]
Event Date: 06/22/2023
Event Time: 00:00 [EDT]
Last Update Date: 10/05/2023
Notification Time: 13:17 [ET]
Event Date: 06/22/2023
Event Time: 00:00 [EDT]
Last Update Date: 10/05/2023
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):
Miller, Mark (R2DO)
Part 21/50.55 Reactors, - (EMAIL)
Miller, Mark (R2DO)
Part 21/50.55 Reactors, - (EMAIL)
EN Revision Imported Date: 10/6/2023
EN Revision Text: PART 21 INTERIM REPORT - FAILURE OF CURTISS WRIGHT SUPPLIED SAFETY RELATED RELAY
The following is a summary of the Part 21 report provided by Curtiss Wright:
On June 20, 2023, Duke Energy sent a letter to Curtiss Wright (CW) to formally notify them that a Tyco (Agastat) relay had failed. Duke Energy had identified certain contacts that were found sticking in the open position.
The relay was returned to CW for evaluation; however, CW could not duplicate the failure. As the relay is questionable for reliable service, CW is having the relay returned to Tyco for their evaluation. Once the evaluation is complete, the current report will be updated. CW anticipates an update to the notification with final results by October 15th.
Affected plant: Catawba
* * * UPDATE ON OCTOBER 5, 2023 AT 1146 EDT FROM JENNIFER HARRISON TO KAREN COTTON * * *
The following information was provided by Curtiss Wright via email:
"The relay was subsequently returned to TYCO for their evaluation. TYCO tested the relay with and without the LL auxiliary switch option and could not duplicate the failure. In all tested conditions, the relay performed within manufacturer specifications, and with no contact binding.
"As the noted failure could not be reproduced by Curtiss-Wright or TYCO, there is no evidence of part malfunction and thus no further evaluation or notification applies."
Notified RDO2 (Miller) and Part 21/50.55 Reactors
EN Revision Text: PART 21 INTERIM REPORT - FAILURE OF CURTISS WRIGHT SUPPLIED SAFETY RELATED RELAY
The following is a summary of the Part 21 report provided by Curtiss Wright:
On June 20, 2023, Duke Energy sent a letter to Curtiss Wright (CW) to formally notify them that a Tyco (Agastat) relay had failed. Duke Energy had identified certain contacts that were found sticking in the open position.
The relay was returned to CW for evaluation; however, CW could not duplicate the failure. As the relay is questionable for reliable service, CW is having the relay returned to Tyco for their evaluation. Once the evaluation is complete, the current report will be updated. CW anticipates an update to the notification with final results by October 15th.
Affected plant: Catawba
* * * UPDATE ON OCTOBER 5, 2023 AT 1146 EDT FROM JENNIFER HARRISON TO KAREN COTTON * * *
The following information was provided by Curtiss Wright via email:
"The relay was subsequently returned to TYCO for their evaluation. TYCO tested the relay with and without the LL auxiliary switch option and could not duplicate the failure. In all tested conditions, the relay performed within manufacturer specifications, and with no contact binding.
"As the noted failure could not be reproduced by Curtiss-Wright or TYCO, there is no evidence of part malfunction and thus no further evaluation or notification applies."
Notified RDO2 (Miller) and Part 21/50.55 Reactors