Event Notification Report for April 07, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/06/2023 - 04/07/2023
Power Reactor
Event Number: 56458
Facility: Susquehanna
Region: 1 State: PA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: Tom Rydzewski
HQ OPS Officer: Donald Norwood
Region: 1 State: PA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: Tom Rydzewski
HQ OPS Officer: Donald Norwood
Notification Date: 04/08/2023
Notification Time: 00:59 [ET]
Event Date: 04/07/2023
Event Time: 20:52 [EDT]
Last Update Date: 04/08/2023
Notification Time: 00:59 [ET]
Event Date: 04/07/2023
Event Time: 20:52 [EDT]
Last Update Date: 04/08/2023
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
Person (Organization):
Gray, Mel (R1DO)
Gray, Mel (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
HIGH PRESSURE CORE INJECTION (HPCI) SYSTEM INOPERABLE
The following information was provided by the licensee via email:
"At 2052 EDT on April 7, 2023, during routine system preventative maintenance functional testing, the Unit 1 HPCI turbine stop valve, FV-15612, remained in the intermediate position.
"This failure resulted in the Unit 1 HPCI system being inoperable.
"This is being reported as a loss of an entire safety function condition in accordance with 10 CFR 50.72(b)(3)(v)(D)."
The NRC Resident Inspector was notified.
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
The Unit 1 HPCI inoperability places Unit 1 in a 14-day Technical Specification (TS) Limiting Condition for Operation (LCO).
The following information was provided by the licensee via email:
"At 2052 EDT on April 7, 2023, during routine system preventative maintenance functional testing, the Unit 1 HPCI turbine stop valve, FV-15612, remained in the intermediate position.
"This failure resulted in the Unit 1 HPCI system being inoperable.
"This is being reported as a loss of an entire safety function condition in accordance with 10 CFR 50.72(b)(3)(v)(D)."
The NRC Resident Inspector was notified.
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
The Unit 1 HPCI inoperability places Unit 1 in a 14-day Technical Specification (TS) Limiting Condition for Operation (LCO).
Agreement State
Event Number: 56462
Rep Org: Texas Dept of State Health Services
Licensee: PRECISION NDT LLC
Region: 4
City: Orla State: TX
County:
License #: L07054
Agreement: Y
Docket:
NRC Notified By: Karen Blanchard
HQ OPS Officer: Ernest West
Licensee: PRECISION NDT LLC
Region: 4
City: Orla State: TX
County:
License #: L07054
Agreement: Y
Docket:
NRC Notified By: Karen Blanchard
HQ OPS Officer: Ernest West
Notification Date: 04/10/2023
Notification Time: 18:42 [ET]
Event Date: 04/07/2023
Event Time: 00:00 [CDT]
Last Update Date: 04/10/2023
Notification Time: 18:42 [ET]
Event Date: 04/07/2023
Event Time: 00:00 [CDT]
Last Update Date: 04/10/2023
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Deese, Rick (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Deese, Rick (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE - DAMAGED RADIOGRAPHY GUIDE TUBE PREVENTING RETRACTION OF SOURCE
The following information was provided by the Texas Department of State Health Services (the Agency) via email:
"On April 10, 2023, the licensee reported to the Agency that on April 7, 2023, one of its QSA Delta 880 industrial radiography exposure devices (camera) had fallen approximately three feet onto the source guide tube at a job site in Orla, Texas. The camera severed the guide tube and the source pigtail was disconnected from the drive cable. The source was 72 curies of iridium-192. A boundary was set at 2 millirem by the radiographers and an individual authorized on their license was dispatched to the site and retrieved the source. The retriever's dosimeter indicated a whole-body dose of 2.6 rem. The licensee has reported initial calculations for the retriever's hand dose to be 385.9 millirem. The two radiographer's self-reading pocket dosimeters indicated doses of 180 and 150 millirem. All of the equipment is being sent to the manufacturer for evaluation. An investigation into this event is ongoing. More information will be provided as it is obtained in accordance with SA-300."
Texas Incident Number: I-10007
The following information was provided by the Texas Department of State Health Services (the Agency) via email:
"On April 10, 2023, the licensee reported to the Agency that on April 7, 2023, one of its QSA Delta 880 industrial radiography exposure devices (camera) had fallen approximately three feet onto the source guide tube at a job site in Orla, Texas. The camera severed the guide tube and the source pigtail was disconnected from the drive cable. The source was 72 curies of iridium-192. A boundary was set at 2 millirem by the radiographers and an individual authorized on their license was dispatched to the site and retrieved the source. The retriever's dosimeter indicated a whole-body dose of 2.6 rem. The licensee has reported initial calculations for the retriever's hand dose to be 385.9 millirem. The two radiographer's self-reading pocket dosimeters indicated doses of 180 and 150 millirem. All of the equipment is being sent to the manufacturer for evaluation. An investigation into this event is ongoing. More information will be provided as it is obtained in accordance with SA-300."
Texas Incident Number: I-10007