| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
5/9/2018 - 5/10/2018 ** EVENT NUMBERS ** |
| !!!!! THIS EVENT HAS BEEN RETRACTED.THIS EVENT HAS BEEN RETRACTED !!!!! | | Power Reactor | Event Number: 53355 | Facility: WATTS BAR
Region: 2 State: TN
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JUSTIN GALLAGHER
HQ OPS Officer: DAVID AIRD | Notification Date: 04/22/2018
Notification Time: 02:34 [ET]
Event Date: 04/21/2018
Event Time: 21:52 [EDT]
Last Update Date: 05/09/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(B) - POT RHR INOP
| Person (Organization):
ALAN BLAMEY (R2DO) | | 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 BOTH TRAINS OF RESIDUAL HEAT REMOVAL INOPERABLE
"On April 21, 2018 at 2152 EDT, Watts Bar Nuclear Plant (WBN) Unit 1 entered TS [Technical Specifications] LCO [Limiting Condition for Operation] 3.0.3 due to both trains of the Residual Heat Removal System (RHRS) becoming inoperable. During surveillance testing, the gas void values on Emergency Core Cooling System (ECCS) piping common to both trains did not meet acceptance criteria. This caused both RHRS trains to become inoperable. Operations subsequently vented the RHRS to meet the acceptance criteria and exited TS LCO 3.0.3 at 2222 EDT. More frequent surveillances will be conducted to monitor gas void volumes while additional analysis is being performed to determine corrective actions."
The NRC Resident Inspector has been notified.
* * * RETRACTION FROM ANTHONY PATE TO DONALD NORWOOD AT 1310 EDT ON 5/9/2018 * * *
"This event is being retracted. The initial report was based on a conservative acceptance criteria for gas accumulation adopted on April 19, 2018 when it was determined that the previously used acceptance criteria for gas accumulation in the ECCS was non-conservative. Additional analysis has subsequently been performed and determined that a higher gas accumulation acceptance criteria does not challenge operability. With a void of less than the acceptance criteria, in the event of ECCS actuation, the system piping support loads will remain within structural limits and the piping system will remain operable. Therefore, both trains of Unit 1 RHRS were operable and the previously reported 10 CFR 50.72(b)(3)(v)(B) event is being retracted.
"The NRC Resident Inspector has been informed of this event retraction."
Notified R2DO (Ehrhardt). |
| Agreement State | Event Number: 53375 | Rep Org: WA OFFICE OF RADIATION PROTECTION
Licensee: H.B. FULLER
Region: 4
City: VANCOUVER State: WA
County:
License #: WN-R-0859
Agreement: Y
Docket:
NRC Notified By: TRISTAN HAY
HQ OPS Officer: DONG HWA PARK | Notification Date: 05/02/2018
Notification Time: 17:05 [ET]
Event Date: 04/04/2018
Event Time: 00:00 [PDT]
Last Update Date: 05/02/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
RAY AZUA (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL) | Event Text AGREEMENT STATE REPORT - SHUTTER TEST FAILED
The following information was obtained from the state of Washington via email:
"[The licensee] called on 4-4-2018 to tell the state that their GL [General License] device failed the shutter test. He said the device was placed out of use and is being sent back to the manufacturer."
Washington State Incident Number WA-18-011 |
| Agreement State | Event Number: 53376 | Rep Org: WA OFFICE OF RADIATION PROTECTION
Licensee: EARTH SOLUTIONS NW
Region: 4
City: BELLEVUE State: WA
County:
License #: WA-WN-I0560-1
Agreement: Y
Docket:
NRC Notified By: JAMES KILLINGBECK
HQ OPS Officer: DONG HWA PARK | Notification Date: 05/02/2018
Notification Time: 19:22 [ET]
Event Date: 07/02/2013
Event Time: 00:00 [PDT]
Last Update Date: 05/02/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
RAY AZUA (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL) | Event Text AGREEMENT STATE REPORT - DAMAGED GAUGE
The following information was obtained from the state of Washington via email:
"Earth Solutions NW (ESNW) reported that a moisture/density gauge (CPN model MC-1-DR, serial #MD60308232) was crushed on 7/2/2013 at temporary jobsite in Mill Creek, Washington. The gauge contained a 1.85 GBq (50 mCi) Am-Be source (model CPN-131, serial #AM8232) and a 0.37 GBq (10 mCi) Cs-137 source (model CPN-131, serial #C8232). The gauge operator had placed the gauge in front of his truck. When asked to move his truck, he forgot about the gauge, moved the truck forward, and crushed the gauge. The source rod was retrieved using a shovel and placed in a bucket of sand. Radiation surveys revealed no radioactive contamination at the jobsite. The source rod and other parts of the gauge were returned to the ESNW facility. On 7/17/2013, Hevly Technical Services (gauge contractor) and Washington Department of Health personnel performed leak tests on the Cs-137 and Am-Be sources. Washington State Public Health Laboratories analyzed the leak test samples and detected no radioactivity. The Cs-137 source rod was reinserted into the gauge body and secured with duct tape. The gauge was then placed into its shipping container. Hevly Technical Services transported the gauge to Qal-Tek Associates (radioactive waste broker) for disposal. To prevent recurrence, ESNW provided additional training to gauge users on proper handling, transporting, storage, and emergency procedures."
NMED Item Number: 130311 |
| Agreement State | Event Number: 53377 | Rep Org: WA OFFICE OF RADIATION PROTECTION
Licensee: SWEDISH MEDICAL CENTER
Region: 4
City: SEATTLE State: WA
County:
License #: WA-WN-M008-1
Agreement: Y
Docket:
NRC Notified By: JAMES KILLINGBECK
HQ OPS Officer: DONG HWA PARK | Notification Date: 05/02/2018
Notification Time: 19:53 [ET]
Event Date: 01/23/2018
Event Time: 11:30 [PDT]
Last Update Date: 05/02/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
RAY AZUA (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL) | Event Text AGREEMENT STATE REPORT - PATIENT RECEIVED DOSE LESS THAN PRESCRIBED DOSE
The following information was obtained from the state of Washington via email:
"Swedish Medical Center (SMC) reported that a patient prescribed to receive 725 MBq (19.59 mCi) of Y-90 microspheres (Sirtex Medical model SIR-Spheres) to the left lobe of the liver, only received 370 MBq (10 mCi). SMC planned a two-artery feed, using 360 MBq (9.73 mCi) per artery per sub lobe. The written directive called for a total of 725 MBq (19.59 mCi) split into two doses. The certified nuclear medicine technologist who drew the dose did not properly review the written directive's instruction to split the total dose into two doses. Instead, the technologist split 370 MBq (10 mCi) into two doses of 190 and 180 MBq (5.14 and 4.86 mCi), respectively. Prior to patient administration, the radiation oncologist also failed to check the drawn doses prior to injecting them. The incident was identified post-injection when the remaining 360 MBq (9.73 mCi) of the original 725 MBq (19.59 mCi) was discovered. The physicians involved believe that the diminished dose may still provide the treatment sought. They will follow up on the patient in six months and will, if deemed necessary, retreat the liver lesions. The referring physician and patient were informed of the incident. SMC's investigation identified several errors: lack of comprehension regarding the dose draw worksheet, miscommunication and failure to review the written directive prior to correcting a dose, and failure to perform a safety pause and properly review the dose to be administered against the written directive prior to administration. Corrective actions included modifying the dose draw spreadsheet, training the nuclear medicine department with regards to the spreadsheet, and modifying the treatment record sheet to include a formal procedural pause prior to administration. The Washington Department of Health, Office of Radiation Protection, did not anticipate conducting an onsite investigation."
NMED Item Number: 180058
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. |
| Power Reactor | Event Number: 53395 | Facility: NINE MILE POINT
Region: 1 State: NY
Unit: [] [2] []
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: CHRIS MOORHEAD
HQ OPS Officer: HOWIE CROUCH | Notification Date: 05/10/2018
Notification Time: 08:59 [ET]
Event Date: 05/10/2018
Event Time: 02:48 [EDT]
Last Update Date: 05/11/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
| Person (Organization):
ANNE DeFRANCISCO (R1DO) | | Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 2 | N | N | 0 | Cold Shutdown | 0 | Cold Shutdown | Event Text VALID EMERGENCY DIESEL START ON PARTIAL LOSS OF OFFSITE POWER
"At 0248 [EDT], with the plant shutdown in Mode 4, Nine Mile Point Unit 2 experienced a partial loss of off-site power during relay testing that resulted in an automatic start of the Division 2 Emergency Diesel Generator. All systems responded as expected for the event. The cause is being investigated. The station responded in accordance with appropriate Special Operating Procedures and restored impacted systems.
"This event is being reported in accordance with 10CFR50.72(b)(3)(iv)(A)"
At the time of the report, the emergency diesel generators are loaded and supplying plant safety equipment.
The licensee has notified the state of New York Emergency Management Agency and the NRC Resident Inspector. |
| Power Reactor | Event Number: 53396 | Facility: OCONEE
Region: 2 State: SC
Unit: [] [] [3]
RX Type: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP
NRC Notified By: BEN MCCALL
HQ OPS Officer: THOMAS KENDZIA | Notification Date: 05/10/2018
Notification Time: 17:03 [ET]
Event Date: 05/10/2018
Event Time: 16:17 [EDT]
Last Update Date: 05/11/2018 | Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
| Person (Organization):
FRANK EHRHARDT (R2DO)
WILLIAM GOTT (IRD)
CHRIS MILLER (NRR EO)
BRIAN HOLIAN (DNRR)
LAURA DUDES (R2DRA) | | Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 3 | N | N | 0 | Refueling | 0 | Refueling | Event Text NOTIFICATION OF UNUSUAL EVENT
"Unit 3 experienced a loss of AC power while in Mode 6. Power was regained automatically from Keowee via the underground path.
"Decay heat removal has been restored. Spent fuel cooling has been restored.
"Emergency procedures [are] in progress."
The Licensee notified the senior NRC resident inspector, State of South Carolina and local authorities.
The total loss of 4160 volt AC power was for approximately 30 seconds. The unit is refueled and reactor reassembly complete up to bolting on the reactor head. There was no effect on Units 1 and 2.
Notified DHS SWO, FEMA Ops Center, FEMA NWC, DHS NICC, and NuclearSSA
* * * UPDATE FROM SCOTT HAWKESWORTH TO HOWIE CROUCH AT 0554 EDT ON 5/11/18 * * *
At 0530 EDT, Oconee terminated the notification of unusual event on Unit 3. The basis for termination was that offsite power was restored and the plant is now in its normal shutdown electrical lineup.
The licensee has notified Oconee and Pickens counties and will be notifying the NRC Resident Inspector.
Notified R2DO (Ehrhardt), NRR EO (Miller), IRD MOC (Gott), DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email) and NuclearSSA (email). | |