| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
12/13/2018 - 12/14/2018 ** EVENT NUMBERS ** |
| !!!!! THIS EVENT HAS BEEN RETRACTED.THIS EVENT HAS BEEN RETRACTED !!!!! | | Power Reactor | Event Number: 53678 | Facility: BROWNS FERRY
Region: 2 State: AL
Unit: [] [] [3]
RX Type: [1] GE-4,[2] GE-4,[3] GE-4
NRC Notified By: TODD CHRISTENSEN
HQ OPS Officer: JEFF HERRERA | Notification Date: 10/21/2018
Notification Time: 06:19 [ET]
Event Date: 10/21/2018
Event Time: 00:00 [CDT]
Last Update Date: 12/13/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
| Person (Organization):
GERALD MCCOY (R2DO) | | Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 3 | N | Y | 67 | Power Operation | 67 | Power Operation | Event Text TECHNICAL SPECIFICATION SHUT DOWN DUE TO CHEMISTRY LIMIT EXCEEDED
"At 0200 Central Daylight Time on 10/21/2018, Browns Ferry Nuclear Plant Unit 3 commenced a reactor shutdown as required by the Technical Requirements Manual Limiting Condition for Operation 3.4.1 Coolant Chemistry Condition D due to conductivity greater than 10 micro mho/cm at 25 degrees Celsius. The required action for this condition is to immediately initiate an orderly shutdown and be in Mode 4 as rapidly as cooldown rate permits. 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 Senior Resident Inspector has been notified."
* * * RETRACTION AT 1719 EST ON 12/13/2018 FROM NEEL SHUKLA TO MARK ABRAMOVITZ * * *
"ENS Event Number 53678, made on 10/21/18, is being retracted.
"NRC notification 53678 was made to ensure that the four-hour non-emergency reporting requirements of 10 CFR 50.72 were met when the licensee discovered a condition requiring shut down of a reactor.
"10 CFR 50.72 requires a report in accordance with 50.72(b)(2)(i) for any Technical Specifications (TS) required reactor shutdown. NUREG-1022 only specifies TS applicability and makes no mention of a Technical Requirements Manual (TRM) required shutdown. Because the shutdown comes from the TRM and not the TS as discussed in 10 CFR 50.72 and NUREG-1022, an EN was not required.
"TVA's evaluation of this event notification is documented in the corrective action program.
"The licensee notified the NRC Resident Inspector."
Notified the R2DO (Ehrhardt). |
| Agreement State | Event Number: 53739 | Rep Org: ARKANSAS DEPARTMENT OF HEALTH
Licensee: 3D IMAGING DRUG DESIGN DEVELOPMENT, LLC
Region: 4
City: LITTLE ROCK State: AR
County:
License #: ARK-1008-03214
Agreement: Y
Docket:
NRC Notified By: STEVE MACK
HQ OPS Officer: JEFF HERRERA | Notification Date: 11/15/2018
Notification Time: 12:02 [ET]
Event Date: 11/14/2018
Event Time: 00:00 [CST]
Last Update Date: 12/14/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
MARK HAIRE (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
PATRICIA MILLIGAN (INES) | Event Text AGREEMENT STATE REPORT - RADIATION WORKER RECEIVES HIGH DOSIMETRY READING
The following report was received from the Arkansas Department of Health via email:
"The RSO reported at 1100 [CST], on November 14, 2018, that the dosimetry provider had reported to the licensee one radiation worker badge had received a possible exposure of 9,000 mR for the month of October. The dosimetry provider has stated the exposure was a dynamic exposure with atypical exposure to the badge.
"The licensee began to investigate the cause of the high reading. The worker had worked with other employees and had not worked independently during the month. Other workers had routine exposures for the month.
"The licensee requires workers to wear SRD's [Self Reading Dosimeter] while working in the restricted area. The worker's cumulative reading for the time period was 200 mR. The worker's ring badge had routine exposure readings.
"During investigation by the licensee, there was no recollection of the badge being separated from the worker during the month. During off hours, all dosimetry is stored with the worker's lab coats outside the restricted area.
"The licensee develops PET [Positron Emission Tomography] radionuclides for radiopharmaceutical research and development.
"Since the time period of the exposure cannot be determined, the Arkansas Program is reporting this event under RH-1502.b. of the Arkansas Regulations equivalent to 10 CFR 20.2202(b)(1) of the NRC Regulations.
"The licensee and the State continue to investigate.
"The State of Arkansas will update when additional information is known.
"Arkansas event number AR-2018-006."
* * * UPDATE ON 12/14/18 AT 1535 EST FROM STEVE MACK TO BETHANY CECERE * * *
The following update was received from the Arkansas Department of Health (Department) via email:
"The licensee provided a written report dated November 15, 2018, outlining the investigation performed to verify the overexposure reported.
"This report restated the requirements of additional dosimetry worn by the worker with no significant indication exposure above routine doses. The report also indicated that at no time during the month was contamination detected when conducting personnel surveys leaving the restricted area. The licensee continues to believe that the dose was only received by the badge and not to the whole body of the radiation worker.
"The licensee submitted its own dose estimate on December 3, 2018, in which the licensee calculated a possible contamination event of the badge that would provide the dose yet exclude dose to other measuring devices and could evade detection when exiting the restricted area.
"The Department has taken this dose estimate into consideration and is requesting that the October, 2018 dose for the radiation worker be reduced to 250 mrem.
"The Department considers this event closed."
Notified R4DO (Taylor), NMSS Events Notification group, and INES (Milligan) by email. |
| Power Reactor | Event Number: 53788 | Facility: GRAND GULF
Region: 4 State: MS
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: GERRY ELLIS
HQ OPS Officer: JOANNA BRIDGE | Notification Date: 12/12/2018
Notification Time: 17:29 [ET]
Event Date: 12/12/2018
Event Time: 00:00 [CST]
Last Update Date: 12/14/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(A) - ECCS INJECTION
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
| Person (Organization):
NICK TAYLOR (R4DO) | | Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 1 | M/R | Y | 100 | Power Operation | 0 | Hot Shutdown | Event Text MANUAL REACTOR SCRAM DUE TO FAILED OPEN TURBINE BYPASS VALVE
"At 1351 CST, the reactor was manually shutdown due to 'A' Turbine Bypass Valve opening. The Main Steam Line Isolation Valves were manually closed to facilitate reactor pressure control. Reactor level is being maintained through the use of Reactor Core Isolation Cooling System, Control Rod Drive System, and High Pressure Core Spray System. High Pressure Core Spray System was manually started to initially support reactor water level control. Reactor Pressure is being controlled through the use of the Safety Relief Valves and the Reactor Core Isolation Cooling System. The plant is stable in MODE 3.
"The cause of the 'A' Turbine Bypass Valve opening is under investigation at this time.
"The NRC Resident Inspector has been notified."
* * * UPDATE ON 12/14/18 AT 1140 EST FROM GERRY ELLIS TO TOM KENDZIA * * *
"This is an update to EN # 53788 to correct an error on the event classification block of the form. The original notification did not have the block for 8 hour notification for Specified System Actuation checked. The actuation of Reactor Core Isolation Cooling System was discussed in original notification."
The licensee notified the NRC Resident Inspector.
Notified R4DO (Taylor). |
| Power Reactor | Event Number: 53789 | Facility: VOGTLE
Region: 2 State: GA
Unit: [3] [4] []
RX Type: [3] W-AP1000,[4] W-AP1000
NRC Notified By: KARA STACY
HQ OPS Officer: JOANNA BRIDGE | Notification Date: 12/13/2018
Notification Time: 14:37 [ET]
Event Date: 12/12/2018
Event Time: 00:00 [EST]
Last Update Date: 12/13/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
26.719 - FITNESS FOR DUTY
| Person (Organization):
FRANK EHRHARDT (R2DO)
FFD GROUP (EMAIL) | | Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 3 | N | N | 0 | Under Construction | 0 | Under Construction | | 4 | N | N | 0 | Under Construction | 0 | Under Construction | Event Text CONTRACTOR SUPERVISOR SUBVERTS A FOLLOW-UP FITNESS FOR DUTY TEST
"At 1700 EST on December 12, 2018, a contractor supervisor violated the licensee's Fitness-for-Duty (FFD) program by subverting a follow-up Fitness for Duty Test. The contractor's site access has been terminated. The NRC Resident Inspector was notified."
No work was performed on safety related equipment.
The licensee has made a PADs entry. | |