Event Notification Report for October 18, 2008
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/17/2008 - 10/18/2008
EVENT NUMBERS
44581
Power Reactor
Event Number: 44581
Facility: NORTH ANNA
Region: 2 State: VA
Unit: [] [2] []
RX Type: [1] W-3-LP,[2] W-3-LP
NRC Notified By: DON TAYLOR
HQ OPS Officer: DONALD NORWOOD
Region: 2 State: VA
Unit: [] [2] []
RX Type: [1] W-3-LP,[2] W-3-LP
NRC Notified By: DON TAYLOR
HQ OPS Officer: DONALD NORWOOD
Notification Date: 10/18/2008
Notification Time: 16:43 [ET]
Event Date: 10/18/2008
Event Time: 11:25 [EDT]
Last Update Date: 10/18/2008
Notification Time: 16:43 [ET]
Event Date: 10/18/2008
Event Time: 11:25 [EDT]
Last Update Date: 10/18/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
STEVEN VIAS (R2)
STEVEN VIAS (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | N | 0 | Hot Standby | 0 | Hot Standby |
BOTH BORON INJECTION TANK INLET VALVES INOPERABLE.
"At 11:25 on 10/18/08 it was identified that 2-SI-MOV-2867A and 2-SIÀMOV-2867B, Boron Injection Tank (BIT) Inlet valves were both inoperable. This resulted In less than 100% of the equivalent to a single operable ECCS train being available (TS 3.5.2.C).
"2-SI-MOV-2867A was made inoperable on 10/17/08 at 23:26 for troubleshooting. Subsequently 2-SI-MOV-2867B became inoperable on 10/18/08 at 03:26 because its emergency power supply was inoperable for maintenance. At that time TS 3.0.3 was applicable with 13 hours to reach MODE 4 and 37 hours to reach MODE 5.
"On 10/18/08 at 12:05 2-SI-MOV-2867A was made available and TS 3.0.3 action was cleared. The emergency power supply for 2-SI-MOV-2867B was made operable on 10/18/08 at 13:35."
NRC Resident Inspector will be notified.
"At 11:25 on 10/18/08 it was identified that 2-SI-MOV-2867A and 2-SIÀMOV-2867B, Boron Injection Tank (BIT) Inlet valves were both inoperable. This resulted In less than 100% of the equivalent to a single operable ECCS train being available (TS 3.5.2.C).
"2-SI-MOV-2867A was made inoperable on 10/17/08 at 23:26 for troubleshooting. Subsequently 2-SI-MOV-2867B became inoperable on 10/18/08 at 03:26 because its emergency power supply was inoperable for maintenance. At that time TS 3.0.3 was applicable with 13 hours to reach MODE 4 and 37 hours to reach MODE 5.
"On 10/18/08 at 12:05 2-SI-MOV-2867A was made available and TS 3.0.3 action was cleared. The emergency power supply for 2-SI-MOV-2867B was made operable on 10/18/08 at 13:35."
NRC Resident Inspector will be notified.