Event Notification Report for September 30, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/29/2023 - 09/30/2023
Agreement State
Event Number: 56768
Rep Org: Louisiana DEQ
Licensee: Acuren Inspection, Inc.
Region: 4
City: St. Martin State: LA
County:
License #: LA-7072-L02, Amendment Number 130
Agreement: Y
Docket:
NRC Notified By: James Pate
HQ OPS Officer: Thomas Herrity
Licensee: Acuren Inspection, Inc.
Region: 4
City: St. Martin State: LA
County:
License #: LA-7072-L02, Amendment Number 130
Agreement: Y
Docket:
NRC Notified By: James Pate
HQ OPS Officer: Thomas Herrity
Notification Date: 09/30/2023
Notification Time: 15:18 [ET]
Event Date: 09/30/2023
Event Time: 00:00 [CDT]
Last Update Date: 09/30/2023
Notification Time: 15:18 [ET]
Event Date: 09/30/2023
Event Time: 00:00 [CDT]
Last Update Date: 09/30/2023
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Young, Cale (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Young, Cale (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - RADIOGRAPHY SOURCE STUCK UNSHIELDED AND RECOVERED
The following was received from the Louisiana Department of Environmental Quality (the Department) via email:
"On September 30, 2023, Acuren Inspection, Inc. notified the Department that an industrial radiography camera failed to retract the source after an exposure. The industrial radiography camera was a Century 330 QSA Cobalt camera. The serial number of the camera is P30078. The radiation source is a Cobalt-60 with an activity strength of 52.2 curie. The source serial number is 59740G. The source was cranked back out the end of the source guide tube with a collimator.
"The facility where this event occurred is in St. Martin, Louisiana. Only the two man radiography crew was present at the site during the event, which occurred between 0300 [CDT] and 0350. A source retrieval was performed, resulting with the source in a shielded condition in the radiography camera. The individual performing the source retrieval received only 1 millirem."
Louisiana Event Report ID No.: LA20230010
The following was received from the Louisiana Department of Environmental Quality (the Department) via email:
"On September 30, 2023, Acuren Inspection, Inc. notified the Department that an industrial radiography camera failed to retract the source after an exposure. The industrial radiography camera was a Century 330 QSA Cobalt camera. The serial number of the camera is P30078. The radiation source is a Cobalt-60 with an activity strength of 52.2 curie. The source serial number is 59740G. The source was cranked back out the end of the source guide tube with a collimator.
"The facility where this event occurred is in St. Martin, Louisiana. Only the two man radiography crew was present at the site during the event, which occurred between 0300 [CDT] and 0350. A source retrieval was performed, resulting with the source in a shielded condition in the radiography camera. The individual performing the source retrieval received only 1 millirem."
Louisiana Event Report ID No.: LA20230010
Power Reactor
Event Number: 56769
Facility: Diablo Canyon
Region: 4 State: CA
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Brian Engleton
HQ OPS Officer: Ernest West
Region: 4 State: CA
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Brian Engleton
HQ OPS Officer: Ernest West
Notification Date: 10/01/2023
Notification Time: 03:02 [ET]
Event Date: 09/30/2023
Event Time: 20:14 [PDT]
Last Update Date: 10/01/2023
Notification Time: 03:02 [ET]
Event Date: 09/30/2023
Event Time: 20:14 [PDT]
Last Update Date: 10/01/2023
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):
Young, Cale (R4DO)
Young, Cale (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | M/R | Y | 11 | Power Operation | 0 | Hot Standby |
MANUAL REACTOR TRIP
The following information was provided by the licensee via email:
"At 2014 [PDT] on 09/30/2023, with [Diablo Canyon] Unit 1 in Mode 1 at 11 percent reactor power in preparation for a pre-planned manual reactor trip into a scheduled refueling outage, the reactor was manually tripped due to a failed secondary system dump valve. Auxiliary feedwater was manually started in accordance with plant procedures.
"This event is being reported in accordance with the reporting criteria of 10 CFR 50.72(b)(2)(iv)(B) and 10 CFR 50.72(b)(3)(iv)(A).
"There was no plant or public safety impact.
"The NRC Senior Resident Inspector has been notified."
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
Diablo Canyon Unit 2 was unaffected.
The following information was provided by the licensee via email:
"At 2014 [PDT] on 09/30/2023, with [Diablo Canyon] Unit 1 in Mode 1 at 11 percent reactor power in preparation for a pre-planned manual reactor trip into a scheduled refueling outage, the reactor was manually tripped due to a failed secondary system dump valve. Auxiliary feedwater was manually started in accordance with plant procedures.
"This event is being reported in accordance with the reporting criteria of 10 CFR 50.72(b)(2)(iv)(B) and 10 CFR 50.72(b)(3)(iv)(A).
"There was no plant or public safety impact.
"The NRC Senior Resident Inspector has been notified."
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
Diablo Canyon Unit 2 was unaffected.