| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
6/21/2018 - 6/22/2018 ** EVENT NUMBERS ** |
| !!!!! THIS EVENT HAS BEEN RETRACTED.THIS EVENT HAS BEEN RETRACTED !!!!! | | Power Reactor | Event Number: 53419 | Facility: BEAVER VALLEY
Region: 1 State: PA
Unit: [1] [] []
RX Type: [1] W-3-LP,[2] W-3-LP
NRC Notified By: JIM DOUGHERTY
HQ OPS Officer: THOMAS KENDZIA | Notification Date: 05/22/2018
Notification Time: 18:38 [ET]
Event Date: 05/22/2018
Event Time: 12:56 [EDT]
Last Update Date: 06/21/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
50.72(b)(3)(v)(B) - POT RHR INOP
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
| Person (Organization):
ANTHONY DIMITRIADIS (R1DO) | | 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 GAS VOIDS DISCOVERED IN BOTH TRAINS OF LOW HEAD SAFETY INJECTION
"On 5/22/2018, while operating at approximately 100 percent power, Ultrasonic Testing of the Beaver Valley Power Station (BVPS) Unit 1 Low Head Safety Injection (LHSI) pump suction piping identified gas voids in excess of the acceptable limit for void volume. Both trains of LHSI were declared inoperable. Technical Specification (TS) 3.5.2 for both trains of the LHSI system was entered along with TS 3.0.3 which requires the initiation of a plant shutdown. Time of TS entry was 12:56 (EDT).
"Plant shutdown was commenced at 15:56 (EDT) in accordance with plant procedures.
"At 15:59 (EDT) Train 'A' LHSI was restored to operable status, TS 3.0.3 Action was exited and the power reduction was stopped at approximately 99 percent.
"At 17:43 (EDT) Train 'B' LHSI was restored to operable status, TS 3.5.2 Actions were exited.
"This is reportable per 10 CFR 50.72(b)(3)(ii) Unanalyzed Condition, 10 CFR 50.72(b)(3)(v) Event or Condition that Could Have Prevented the Fulfillment of a Safety Function and 10 CFR 50. 72(b )(2)(i) TS Required Shutdown.
"The NRC Resident Inspector has been notified."
* * * RETRACTION ON 6/21/18 AT 1535 EDT FROM SHAWN KEENER TO RICHARD SMITH * * *
"Further engineering evaluation has determined that the gas voids that existed at the time of discovery would not have rendered the LHSI [Low Head Safety Injection] system inoperable if it were required to actuate. The engineering evaluation concluded that filling of the containment sump during a Design Basis Accident would result in a void volume reduction such that the void in the LHSI suction piping would not be large enough to significantly impact the operability of the system. Therefore, the system remained operable but degraded. No TSs [Technical Specifications] were required to be entered and no shutdown was required. As such, all three reporting criteria do not apply and are being retracted.
"The NRC Resident Inspector has been notified."
Notified R1DO (Burritt). |
| Agreement State | Event Number: 53457 | Rep Org: OK DEQ RAD MANAGEMENT
Licensee: UNIVERSAL PRESSURE PUMPING, INC.
Region: 4
City: State: OK
County:
License #: OK-32152-01
Agreement: Y
Docket:
NRC Notified By: KEVIN SAMPSON
HQ OPS Officer: DONG HWA PARK | Notification Date: 06/13/2018
Notification Time: 17:19 [ET]
Event Date: 06/13/2018
Event Time: 00:00 [CDT]
Last Update Date: 06/13/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
NICK TAYLOR (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL) | Event Text AGREEMENT STATE REPORT - FIXED NUCLEAR GAUGE SHUTTER STUCK
The following information was received via E-mail:
"We [Oklahoma Department of Environmental Quality] have been informed by Universal Pressure Pumping, Inc. that one of their Berthold LB 8010 fixed gauges has experienced a failure of the shutter mechanism resulting in it being stuck in the open position. The gauge has been removed from the truck and is in storage. The licensee has contacted Berthold and is arranging for one of Berthold's technicians to come to their facility to repair the gauge." |
| Power Reactor | Event Number: 53467 | Facility: WATTS BAR
Region: 2 State: TN
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: ANTHONY PATE
HQ OPS Officer: THOMAS KENDZIA | Notification Date: 06/22/2018
Notification Time: 12:14 [ET]
Event Date: 06/22/2018
Event Time: 08:41 [EDT]
Last Update Date: 06/22/2018 | 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):
GERALD MCCOY (R2DO) | | Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 2 | A/R | Y | 95 | Power Operation | 0 | Hot Standby | Event Text AUTOMATIC REACTOR TRIP
"At 0841 EDT on June 22, 2018, the Watts Bar Unit 2 reactor automatically tripped while operating at 95% power. All control and shutdown bank rods inserted properly in response to the automatic reactor trip. All safety systems including Auxiliary Feedwater actuated as designed. The plant is stable with decay heat removal through Auxiliary Feedwater and Steam Dump Systems.
"The reactor automatically tripped due to a main turbine trip. The turbine trip was caused by main generator electrical trip. An investigation is in progress.
"The automatic actuation of the Reactor Protection System (RPS) is being reported as a four hour report under 10 CFR 50.72 (b)(2)(iv)(B).
"The expected actuation of the Auxiliary Feedwater System (an engineered safety feature) is being reported as an eight hour report under 10 CFR 50.72 (b)(3)(iv)(A).
"The NRC Senior Resident Inspector has been notified for this event."
The plant is currently stable at normal operating temperature and pressure. The grid is stable and the plant is in its normal shutdown electrical lineup. Unit 1 was unaffected by the Unit 2 trip. |
| Power Reactor | Event Number: 53469 | Facility: VOGTLE
Region: 2 State: GA
Unit: [3] [4] []
RX Type: [3] W-AP1000,[4] W-AP1000
NRC Notified By: DANIEL MICKINAC
HQ OPS Officer: VINCE KLCO | Notification Date: 06/22/2018
Notification Time: 15:12 [ET]
Event Date: 06/22/2018
Event Time: 09:00 [EDT]
Last Update Date: 06/22/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
26.719 - FITNESS FOR DUTY
| Person (Organization):
GERALD MCCOY (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 NON-LICENSED SUPERVISORY CONTRACTOR SUBVERTS FITNESS FOR DUTY TEST
"At 0900 [EDT] on June 22, 2018, a non-licensed supervisory contractor subverted a random Fitness for Duty test. The contractor's site access has been terminated. The NRC Resident Inspector was notified. " | |