Event Notification Report for June 11, 2021
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
06/10/2021 - 06/11/2021
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 55303
Facility: Hatch
Region: 2 State: GA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: Brandon Shuman
HQ OPS Officer: Jeffrey Whited
Region: 2 State: GA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: Brandon Shuman
HQ OPS Officer: Jeffrey Whited
Notification Date: 06/11/2021
Notification Time: 18:06 [ET]
Event Date: 06/11/2021
Event Time: 17:10 [EDT]
Last Update Date: 06/17/2021
Notification Time: 18:06 [ET]
Event Date: 06/11/2021
Event Time: 17:10 [EDT]
Last Update Date: 06/17/2021
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(i) - Plant S/D Reqd By Ts
10 CFR Section:
50.72(b)(2)(i) - Plant S/D Reqd By Ts
Person (Organization):
MILLER, MARK (R2)
MILLER, MARK (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 68 | Power Operation |
EN Revision Imported Date: 7/16/2021
EN Revision Text: TECHNICAL SPECIFICIATION REQUIRED SHUTDOWN
"At 1710 EDT on June 11, 2021, a Technical Specification required shutdown was initiated at Plant Hatch Unit 1. Technical Specification Condition 3.4.4.B unidentified LEAKAGE increase not within limits, was entered due to a greater than 2 gpm increase in unidentified LEAKAGE within the previous 24 hour period in MODE 1. This specification was entered on June 11, 2021, at 1615 EDT with a REQUIRED ACTION to restore leakage increase within limits within 4 hours. This REQUIRED ACTION could not be completed within the COMPLETION TIME; therefore, a Technical Specification required shutdown was initiated, and this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(i).
"There was no impact on the health and safety of the public or plant personnel.
"The NRC Resident Inspector has been notified."
* * * RETRACTION ON 6/17/2021 AT 1309 FROM JASON BUTLER TO JEFFREY WHITED * * *
"Upon further review of the leakage rates, it was determined that at 1900 EDT on 6/11/2021 the drywell floor drain unidentified leakage increased greater than 2 gpm within the previous 24 hours while in MODE 1. Technical Specification (TS) 3.4.4.B was entered to reduce leakage increase to within limits within 4 hours. At 2000 EDT on 6/11/2021 unidentified leakage was reduced below the 2 gpm increase within the previous 24 hours due to actions taken to lower reactor power and pressure. Therefore, the TS required shutdown per TS 3.4.4.C was not applicable. Thus Event Report 55303 is being retracted.
"The NRC resident has been notified of the retraction."
Notified R2DO (Miller).
EN Revision Text: TECHNICAL SPECIFICIATION REQUIRED SHUTDOWN
"At 1710 EDT on June 11, 2021, a Technical Specification required shutdown was initiated at Plant Hatch Unit 1. Technical Specification Condition 3.4.4.B unidentified LEAKAGE increase not within limits, was entered due to a greater than 2 gpm increase in unidentified LEAKAGE within the previous 24 hour period in MODE 1. This specification was entered on June 11, 2021, at 1615 EDT with a REQUIRED ACTION to restore leakage increase within limits within 4 hours. This REQUIRED ACTION could not be completed within the COMPLETION TIME; therefore, a Technical Specification required shutdown was initiated, and this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(i).
"There was no impact on the health and safety of the public or plant personnel.
"The NRC Resident Inspector has been notified."
* * * RETRACTION ON 6/17/2021 AT 1309 FROM JASON BUTLER TO JEFFREY WHITED * * *
"Upon further review of the leakage rates, it was determined that at 1900 EDT on 6/11/2021 the drywell floor drain unidentified leakage increased greater than 2 gpm within the previous 24 hours while in MODE 1. Technical Specification (TS) 3.4.4.B was entered to reduce leakage increase to within limits within 4 hours. At 2000 EDT on 6/11/2021 unidentified leakage was reduced below the 2 gpm increase within the previous 24 hours due to actions taken to lower reactor power and pressure. Therefore, the TS required shutdown per TS 3.4.4.C was not applicable. Thus Event Report 55303 is being retracted.
"The NRC resident has been notified of the retraction."
Notified R2DO (Miller).
Agreement State
Event Number: 55313
Rep Org: ALABAMA RADIATION CONTROL
Licensee: University of Alabama in Birmingham
Region: 1
City: Birmingham State: AL
County:
License #: 266
Agreement: Y
Docket:
NRC Notified By: Cason Coan
HQ OPS Officer: Jeffrey Whited
Licensee: University of Alabama in Birmingham
Region: 1
City: Birmingham State: AL
County:
License #: 266
Agreement: Y
Docket:
NRC Notified By: Cason Coan
HQ OPS Officer: Jeffrey Whited
Notification Date: 06/17/2021
Notification Time: 11:58 [ET]
Event Date: 06/11/2021
Event Time: 00:00 [CDT]
Last Update Date: 06/17/2021
Notification Time: 11:58 [ET]
Event Date: 06/11/2021
Event Time: 00:00 [CDT]
Last Update Date: 06/17/2021
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
LILLIENDAHL, JON (R1)
NMSS_EVENTS_NOTIFICATION, (EMAIL)
LILLIENDAHL, JON (R1)
NMSS_EVENTS_NOTIFICATION, (EMAIL)
EN Revision Imported Date: 7/16/2021
EN Revision Text: AGREEMENT STATE REPORT - MEDICAL EVENT - POSSIBLE MISADMINISTRATION
The following was submitted by Alabama Department of Radiation Control via email:
"The licensee reported that a patient was treated with fraction 2 of 3 on Friday 6/11/2021 using a vaginal cylinder. Once the fraction was completed, the treatment team noted that the vaginal cylinder had been displaced about 6 cm, a shift of about 5 cm. Unknown when the cylinder shifted during treatment. Licensee estimated a dose difference of approximately 5.58 Gray."
Alabama Event 21-19
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.
EN Revision Text: AGREEMENT STATE REPORT - MEDICAL EVENT - POSSIBLE MISADMINISTRATION
The following was submitted by Alabama Department of Radiation Control via email:
"The licensee reported that a patient was treated with fraction 2 of 3 on Friday 6/11/2021 using a vaginal cylinder. Once the fraction was completed, the treatment team noted that the vaginal cylinder had been displaced about 6 cm, a shift of about 5 cm. Unknown when the cylinder shifted during treatment. Licensee estimated a dose difference of approximately 5.58 Gray."
Alabama Event 21-19
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.