Event Notification Report for October 13, 2015
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/12/2015 - 10/13/2015
Power Reactor
Event Number: 51467
Facility: SURRY
Region: 2 State: VA
Unit: [1] [] []
RX Type: [1] W-3-LP,[2] W-3-LP
NRC Notified By: THOMAS OLIVER
HQ OPS Officer: MARK ABRAMOVITZ
Region: 2 State: VA
Unit: [1] [] []
RX Type: [1] W-3-LP,[2] W-3-LP
NRC Notified By: THOMAS OLIVER
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 10/13/2015
Notification Time: 21:20 [ET]
Event Date: 10/13/2015
Event Time: 18:15 [EDT]
Last Update Date: 10/13/2015
Notification Time: 21:20 [ET]
Event Date: 10/13/2015
Event Time: 18:15 [EDT]
Last Update Date: 10/13/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION 50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION 50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
SHAKUR WALKER (R2DO)
SHAKUR WALKER (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | A/R | Y | 100 | Power Operation | 0 | Hot Standby |
REACTOR TRIP AFTER A TURBINE TRIP
"Surry Unit 1 Reactor automatically tripped at 1815 hours [EDT] on 10/13/2015 due to a Generator Differential Lockout Turbine trip. The cause of the Generator Differential Lockout is under investigation at this time. Reactor Coolant System is currently being maintained at 548 degrees F on the Steam Generator PORVs due to closing Main Steam Trip Valves manually. All three Auxiliary Feedwater Pumps started automatically as designed on Low-Low Steam Generator Water Level following the trip. Auxiliary Feedwater Pumps have since been secured and Main Feedwater is in use. All systems operated as required. Off-site power remains available. There is no impact on Surry Unit 2.
"This notification is being made pursuant to 10CFR50.72(b)(2)(iv)(B) for 4 hour notification of Reactor Protection System activation and 10CFR50.72(b)(3)(iv)(A) for 8 hour notification of automatic actuation of Auxiliary Feedwater. The NRC Resident Inspector has been notified and is on site.
"There were no radiation releases, personnel injuries, or contamination events due to this event."
All control rods fully inserted during the reactor trip. The Main Steam Trip Valves were shut due to excessive cooldown. The plant is in its normal shutdown electrical lineup. There is no steam generator tube leakage.
"Surry Unit 1 Reactor automatically tripped at 1815 hours [EDT] on 10/13/2015 due to a Generator Differential Lockout Turbine trip. The cause of the Generator Differential Lockout is under investigation at this time. Reactor Coolant System is currently being maintained at 548 degrees F on the Steam Generator PORVs due to closing Main Steam Trip Valves manually. All three Auxiliary Feedwater Pumps started automatically as designed on Low-Low Steam Generator Water Level following the trip. Auxiliary Feedwater Pumps have since been secured and Main Feedwater is in use. All systems operated as required. Off-site power remains available. There is no impact on Surry Unit 2.
"This notification is being made pursuant to 10CFR50.72(b)(2)(iv)(B) for 4 hour notification of Reactor Protection System activation and 10CFR50.72(b)(3)(iv)(A) for 8 hour notification of automatic actuation of Auxiliary Feedwater. The NRC Resident Inspector has been notified and is on site.
"There were no radiation releases, personnel injuries, or contamination events due to this event."
All control rods fully inserted during the reactor trip. The Main Steam Trip Valves were shut due to excessive cooldown. The plant is in its normal shutdown electrical lineup. There is no steam generator tube leakage.
Agreement State
Event Number: 51468
Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES
Licensee: BASF CORPORATION
Region: 4
City: FREEPORT State: TX
County:
License #: 01021
Agreement: Y
Docket:
NRC Notified By: KAREN BLANCHARD
HQ OPS Officer: JEFF HERRERA
Licensee: BASF CORPORATION
Region: 4
City: FREEPORT State: TX
County:
License #: 01021
Agreement: Y
Docket:
NRC Notified By: KAREN BLANCHARD
HQ OPS Officer: JEFF HERRERA
Notification Date: 10/14/2015
Notification Time: 09:09 [ET]
Event Date: 10/13/2015
Event Time: 13:00 [CDT]
Last Update Date: 10/14/2015
Notification Time: 09:09 [ET]
Event Date: 10/13/2015
Event Time: 13:00 [CDT]
Last Update Date: 10/14/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
GEOFFREY MILLER (R4DO)
NMSS_EVENTS_NOTIFIC (EMAI)
GEOFFREY MILLER (R4DO)
NMSS_EVENTS_NOTIFIC (EMAI)
AGREEMENT STATE - STUCK OPEN SHUTTER ON VESSEL LEVEL GAUGE
The following report was received from the Texas Department of State Health Services via email:
"On October 13, 2015, the licensee [BASF Corporation] reported to the Agency [Texas Department of State Health Services] that during routine gauge inspection and shutter checks, its [BASF Corporation] staff found the shutter on one of its Ronan SA-1 gauges, containing a 10 milliCurie cesium-137 source, was stuck in the open position. The gauge normally operates with the gauge in the open position and due to its location on the side of a vessel there is no risk of exposure. The licensee has contacted the manufacturer to schedule repairs. An investigation into this event is ongoing. Further information will be provided as it is obtained in accordance with SA-300.
"Gauge/source Information: Gauge: Ronan model SA-1 -- (no unique serial number for the source holder)
"Source: 10 mCi cesium-137 -- SN: 6727GK"
Texas Incident Number: I-9347
The following report was received from the Texas Department of State Health Services via email:
"On October 13, 2015, the licensee [BASF Corporation] reported to the Agency [Texas Department of State Health Services] that during routine gauge inspection and shutter checks, its [BASF Corporation] staff found the shutter on one of its Ronan SA-1 gauges, containing a 10 milliCurie cesium-137 source, was stuck in the open position. The gauge normally operates with the gauge in the open position and due to its location on the side of a vessel there is no risk of exposure. The licensee has contacted the manufacturer to schedule repairs. An investigation into this event is ongoing. Further information will be provided as it is obtained in accordance with SA-300.
"Gauge/source Information: Gauge: Ronan model SA-1 -- (no unique serial number for the source holder)
"Source: 10 mCi cesium-137 -- SN: 6727GK"
Texas Incident Number: I-9347