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Event Notification Report for June 07, 2021

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
06/06/2021 - 06/07/2021

EVENT NUMBERS
552955529755309
Power Reactor
Event Number: 55295
Facility: Comanche Peak
Region: 4     State: TX
Unit: [2] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Kris Brigman
HQ OPS Officer: Howie Crouch
Notification Date: 06/07/2021
Notification Time: 18:31 [ET]
Event Date: 06/07/2021
Event Time: 15:27 [CDT]
Last Update Date: 06/07/2021
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
Person (Organization):
DRAKE, JAMES (R4)
Power Reactor Unit Info
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
Event Text
EN Revision Imported Date: 7/7/2021

EN Revision Text: AUTOMATIC REACTOR TRIP ON TURBINE TRIP DUE TO FAULT AND FIRE IN THE MAIN TRANSFORMER

"At 1527 (Central Standard Time) Unit 2 Reactor tripped caused by a turbine trip due to a fault and fire on Unit 2 Main Transformer #1. All Aux Feedwater Pumps started due to steam generator Lo-Lo levels.

"Unit 2 is being maintained in Hot Standby (Mode 3) in accordance with Integrated Plant Operating Procedure IPO-007B. The Emergency Response Guideline Network has been exited. Decay heat is being rejected to the Main Condenser via the steam dump valves.

"Fire was extinguished at 1546 without offsite assistance. No major injuries reported and no personnel transported offsite for medical attention. Cause of the fault and fire are under investigation.

"NRC Resident Inspector has been notified."

All rods inserted into the core during the trip. There were no relief valves or safety valves lifted during the transient. The plant is stable in its normal shutdown electrical lineup via the auxiliary transformer with all safety equipment available. Unit 1 was not affected by the transient.


Power Reactor
Event Number: 55297
Facility: Summer
Region: 2     State: SC
Unit: [1] [] []
RX Type: [1] W-3-LP,[2] W-AP1000,[3] W-AP1000
NRC Notified By: Tracey Stewart
HQ OPS Officer: Brian P. Smith
Notification Date: 06/08/2021
Notification Time: 08:37 [ET]
Event Date: 06/07/2021
Event Time: 10:27 [EDT]
Last Update Date: 06/08/2021
Emergency Class: Non Emergency
10 CFR Section:
26.719 - Fitness For Duty
Person (Organization):
MILLER, MARK (R2)
FFD GROUP, (EMAIL)
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
EN Revision Imported Date: 7/8/2021

EN Revision Text: FAILED FITNESS FOR DUTY TEST

A contract employee supervisor had a confirmed positive for alcohol during a random fitness-for-duty test. The employee's access to the plant has been terminated.

The NRC Resident Inspector has been notified.


Agreement State
Event Number: 55309
Rep Org: GEORGIA RADIOACTIVE MATERIAL PGM
Licensee: Hurst Boiler Company
Region: 1
City: Coolridge   State: GA
County:
License #: GA 918-1
Agreement: Y
Docket:
NRC Notified By: Stacy Allman
HQ OPS Officer: Thomas Kendzia
Notification Date: 06/16/2021
Notification Time: 10:14 [ET]
Event Date: 06/07/2021
Event Time: 00:00 [EDT]
Last Update Date: 07/07/2021
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
LILLIENDAHL, JON (R1)
NMSS_EVENTS_NOTIFICATION, (EMAIL)
ILTAB, (EMAIL)
Event Text
EN Revision Imported Date: 8/6/2021

EN Revision Text: AGREEMENT STATE REPORT - SOURCE LOST DURING SHIPPING

The following was received from the Georgia Radioactive Materials Program (Agency) via email:

"Hurst Boiler Welding Company used [a common carrier] to ship a source changer back to QSA Global. It was shipped on May 19, 2021, and officially declared lost on 6/14/21. Hurst Boiler reported the loss to [the Agency] on 6/16/21. The licensee intended to ship a source changer back to QSA global via [a common carrier] on 5/19/2021. After approximately 14 days without a confirmation of receipt. The licensee contacted [the common carrier] on 6/14/21, who confirmed the source had been lost. The Radiation Safety Officer (RSO) then contacted [the Agency] on 6/16/21. When speaking with the RSO by phone, he stated the source changer contains an Ir-192 source (Serial # 9887G Model SC-800). The source activity when shipped (5/19/21) was 8.3 Ci and as of 6/16/21 it has decayed to 6.3 Ci. The most current leak test was performed on 8/31/21. The RSO was advised to provide a written report and submit all supporting documents as soon as possible."

Georgia Incident #41

* * * UPDATE ON 7/7/21 AT 1700 EDT FROM SHATAVIA WALKER TO BRIAN P. SMITH * * *

The source has been retrieved in North Carolina. The following e-mail was received from the North Carolina Department of Health and Human Services in regards to finding the lost source:

"[The common carrier] confirmed with our staff this morning that the shipment was located in Durham, NC. It had been delivered to an incorrect shipping warehouse. [The common carrier] picked the source up from that location and got it back on route to the vendor in Massachusetts. The RSO provided receipt confirmation from the vendor that the source had been returned. The error was discovered by reviewing video footage and noticing it being loaded to the truck bound for Durham."

Notified R1DO (Lilliendahl), NMSS Events Notification (E-mail), and ILTAB (E-mail)

THIS MATERIAL EVENT CONTAINS A 'Category 3' LEVEL OF RADIOACTIVE MATERIAL

Category 3 sources, if not safely managed or securely protected, could cause permanent injury to a person who handled them, or were otherwise in contact with them, for some hours. It could possibly - although it is unlikely - be fatal to be close to this amount of unshielded radioactive material for a period of days to weeks. These sources are typically used in practices such as fixed industrial gauges involving high activity sources (for example: level gauges, dredger gauges, conveyor gauges and spinning pipe gauges) and well logging. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf