Event Notification Report for February 19, 2010
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/18/2010 - 02/19/2010
Power Reactor
Event Number: 45715
Facility: CALLAWAY
Region: 4 State: MO
Unit: [1] [] []
RX Type: [1] W-4-LP
NRC Notified By: TIM HOLLAND
HQ OPS Officer: HOWIE CROUCH
Region: 4 State: MO
Unit: [1] [] []
RX Type: [1] W-4-LP
NRC Notified By: TIM HOLLAND
HQ OPS Officer: HOWIE CROUCH
Notification Date: 02/20/2010
Notification Time: 03:49 [ET]
Event Date: 02/19/2010
Event Time: 21:45 [CST]
Last Update Date: 02/20/2010
Notification Time: 03:49 [ET]
Event Date: 02/19/2010
Event Time: 21:45 [CST]
Last Update Date: 02/20/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
GEOFFREY MILLER (R4DO)
GEOFFREY MILLER (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
SPECIFIED SYSTEM ACTUATIONS DUE TO LOSS OF THE 'A' SAFEGUARDS TRANSFORMER
"At 2145 CST on 2/19/2010, the Callaway Plant experienced a loss of switchyard bus 'A'. This resulted in a loss of off site power to 'B' train vital 4160 volt bus NB02. Technical specification LCO 3.8.1 was entered. The 'B' train emergency diesel generator started and the shutdown sequencer actuated for bus NB02. 'B' motor driven auxiliary feed water pump, 'B' centrifugal charging pump, and both 'A' and 'B' essential service water pumps started. The turbine driven auxiliary feed water pump actuated, and steam generator blowdown and sample isolation occurred. 'A' train offsite vital power and emergency diesel generator were available. The actuations that occurred were consistent with the loss of one vital AC train. All emergency systems responded as expected with the exception of steam generator blowdown valve BMHV0002 which was manually isolated when it failed to fully close.
"The loss of switchyard bus 'A' was due to a fault on the 'A' safeguards transformer. The faulted transformer has been isolated, and switchyard bus 'A' was reenergized at 0132 on 2/20/2010. The 'B' train vital 4160 volt bus NB02 was tied to offsite power at 0222 on 2/20/2010, and the 'B' emergency diesel generator was secured at 0233 on 2/20/2010. Technical specification LCO 3.8.1 was exited.
"Currently the plant is at 100% power.
"The licensee has notified the NRC Resident Inspector."
"At 2145 CST on 2/19/2010, the Callaway Plant experienced a loss of switchyard bus 'A'. This resulted in a loss of off site power to 'B' train vital 4160 volt bus NB02. Technical specification LCO 3.8.1 was entered. The 'B' train emergency diesel generator started and the shutdown sequencer actuated for bus NB02. 'B' motor driven auxiliary feed water pump, 'B' centrifugal charging pump, and both 'A' and 'B' essential service water pumps started. The turbine driven auxiliary feed water pump actuated, and steam generator blowdown and sample isolation occurred. 'A' train offsite vital power and emergency diesel generator were available. The actuations that occurred were consistent with the loss of one vital AC train. All emergency systems responded as expected with the exception of steam generator blowdown valve BMHV0002 which was manually isolated when it failed to fully close.
"The loss of switchyard bus 'A' was due to a fault on the 'A' safeguards transformer. The faulted transformer has been isolated, and switchyard bus 'A' was reenergized at 0132 on 2/20/2010. The 'B' train vital 4160 volt bus NB02 was tied to offsite power at 0222 on 2/20/2010, and the 'B' emergency diesel generator was secured at 0233 on 2/20/2010. Technical specification LCO 3.8.1 was exited.
"Currently the plant is at 100% power.
"The licensee has notified the NRC Resident Inspector."
Power Reactor
Event Number: 45711
Facility: BRUNSWICK
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: GARY ROBERTS
HQ OPS Officer: BILL HUFFMAN
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: GARY ROBERTS
HQ OPS Officer: BILL HUFFMAN
Notification Date: 02/19/2010
Notification Time: 11:33 [ET]
Event Date: 02/19/2010
Event Time: 11:11 [EST]
Last Update Date: 02/19/2010
Notification Time: 11:33 [ET]
Event Date: 02/19/2010
Event Time: 11:11 [EST]
Last Update Date: 02/19/2010
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
JONATHAN BARTLEY (R2DO)
JOHN THORP (NRR)
JEFFERY GRANT (IRD)
BRUCE BOGER (NRR)
VICTOR McCREE (R2 R)
JONATHAN BARTLEY (R2DO)
JOHN THORP (NRR)
JEFFERY GRANT (IRD)
BRUCE BOGER (NRR)
VICTOR McCREE (R2 R)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 96 | Power Operation | 96 | Power Operation |
UNSUAL EVENT DUE TO CARBON DIOXIDE DISCHARGE IN THE HIGH PRESSURE COOLANT INJECTION (HPCI) ROOM
The licensee reported that a CO2 discharge has occurred in the Unit 1 HPCI room. The cause and amount of CO2 released is not specifically known but the licensee judged that the room was not currently habitable based on the CO2. The licensee consequently declared an Unusual Event (UE) under EAL HU3.1 - "Toxic, Corrosive, Asphyxiant, or Flammable Material in Amounts That Could Adversely Impact Plant Operations. "
The licensee stated that activities were in progress in the room at the time of the discharge. There is no indication of a fire in the room and there were no personnel injuries as a result of the discharge. The discharge also had no impact on plant operation. The licensee at this point plans to terminate the UE when the room is properly ventilated.
The licensee has notified State and local authorities and the NRC Resident Inspector and does not plan a press release.
* * * UPDATE FROM GARY ROBERTS TO DONG PARK @ 1354 EST ON 02/19/10 * * *
At 1330 EST on 2/19/10, the Unusual Event was terminated. The atmosphere in the HPCI room is back to normal. The CO2 source was from cylinders located in the HPCI room which is part of the fire suppression system.
The licensee has notified the NRC Resident Inspector. Notified IRD (Grant), R2DO (Bartley), NRR EO (Thorp), DHS (Vestal) and FEMA (Fuller).
The licensee reported that a CO2 discharge has occurred in the Unit 1 HPCI room. The cause and amount of CO2 released is not specifically known but the licensee judged that the room was not currently habitable based on the CO2. The licensee consequently declared an Unusual Event (UE) under EAL HU3.1 - "Toxic, Corrosive, Asphyxiant, or Flammable Material in Amounts That Could Adversely Impact Plant Operations. "
The licensee stated that activities were in progress in the room at the time of the discharge. There is no indication of a fire in the room and there were no personnel injuries as a result of the discharge. The discharge also had no impact on plant operation. The licensee at this point plans to terminate the UE when the room is properly ventilated.
The licensee has notified State and local authorities and the NRC Resident Inspector and does not plan a press release.
* * * UPDATE FROM GARY ROBERTS TO DONG PARK @ 1354 EST ON 02/19/10 * * *
At 1330 EST on 2/19/10, the Unusual Event was terminated. The atmosphere in the HPCI room is back to normal. The CO2 source was from cylinders located in the HPCI room which is part of the fire suppression system.
The licensee has notified the NRC Resident Inspector. Notified IRD (Grant), R2DO (Bartley), NRR EO (Thorp), DHS (Vestal) and FEMA (Fuller).
General Information or Other
Event Number: 45720
Rep Org: TEXAS DEPARTMENT OF HEALTH
Licensee: ALCOA WORLD ALUMINA
Region: 4
City: POINT COMFORT State: TX
County:
License #: 05189
Agreement: Y
Docket:
NRC Notified By: ART TUCKER
HQ OPS Officer: BILL HUFFMAN
Licensee: ALCOA WORLD ALUMINA
Region: 4
City: POINT COMFORT State: TX
County:
License #: 05189
Agreement: Y
Docket:
NRC Notified By: ART TUCKER
HQ OPS Officer: BILL HUFFMAN
Notification Date: 02/24/2010
Notification Time: 11:11 [ET]
Event Date: 02/19/2010
Event Time: 00:00 [CST]
Last Update Date: 02/24/2010
Notification Time: 11:11 [ET]
Event Date: 02/19/2010
Event Time: 00:00 [CST]
Last Update Date: 02/24/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
RYAN LANTZ (R4DO)
ANGELA MCINTOSH (FSME)
RYAN LANTZ (R4DO)
ANGELA MCINTOSH (FSME)
AGREEMENT STATE REPORT - STUCK PROCESS GAUGE SHUTTER
The following information was received from the State of Texas via email:
"On February 23, 2010, at 1500 hours, the [State of Texas] was notified by the licensee that the operating mechanism for the shutter shielding device on a Thermo Fisher model 5201 nuclear gauge had failed. The gauge is normally operated with the shielding for the source in the open position. The licensee stated that the current condition of the gauge poses no additional health risk to individuals. The gauge contains a Cesium (Cs)-137 source with an original activity of 100 milliCuries. The gauge is located 10 feet off of the ground and is accessed using a ladder to a platform. The area has been posted to prevent anyone from performing maintenance in the area. The licensee has contacted the manufacturer to repair the gauge. [State of Texas] will provide additional information as it is obtained."
TX Report I-8713
The following information was received from the State of Texas via email:
"On February 23, 2010, at 1500 hours, the [State of Texas] was notified by the licensee that the operating mechanism for the shutter shielding device on a Thermo Fisher model 5201 nuclear gauge had failed. The gauge is normally operated with the shielding for the source in the open position. The licensee stated that the current condition of the gauge poses no additional health risk to individuals. The gauge contains a Cesium (Cs)-137 source with an original activity of 100 milliCuries. The gauge is located 10 feet off of the ground and is accessed using a ladder to a platform. The area has been posted to prevent anyone from performing maintenance in the area. The licensee has contacted the manufacturer to repair the gauge. [State of Texas] will provide additional information as it is obtained."
TX Report I-8713