Event Notification Report for March 11, 2001
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/10/2001 - 03/11/2001
EVENT NUMBERS
37825
Power Reactor
Event Number: 37825
Facility: NORTH ANNA
Region: 2 State: VA
Unit: [] [2] []
RX Type: [1] W-3-LP,[2] W-3-LP
NRC Notified By: JAMES JOHNSTONE
HQ OPS Officer: FANGIE JONES
Region: 2 State: VA
Unit: [] [2] []
RX Type: [1] W-3-LP,[2] W-3-LP
NRC Notified By: JAMES JOHNSTONE
HQ OPS Officer: FANGIE JONES
Notification Date: 03/11/2001
Notification Time: 04:28 [ET]
Event Date: 03/11/2001
Event Time: 01:19 [EST]
Last Update Date: 03/11/2001
Notification Time: 04:28 [ET]
Event Date: 03/11/2001
Event Time: 01:19 [EST]
Last Update Date: 03/11/2001
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):
THOMAS DECKER (R2)
THOMAS DECKER (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | M/R | N | 0 | Hot Standby | 0 | Hot Standby |
TECHNICAL SPECIFICATION REQUIRED MANUAL REACTOR TRIP DURING PLANT SHUTDOWN
At 0109 EST on 3/11/01 with the reactor already subcritical during the insertion of control bank 'B', the licensee noted that the group 2 step counter stopped moving at 53 steps. Technical specification 3.1.3.3 requires the reactor trip breakers to be opened within 15 minutes and at 0119 EST the licensee performed a manual reactor trip opening the trip breakers. The plant is entering a refueling outage and the problem will be corrected before startup.
The licensee intends to notify the NRC Resident Inspector.
At 0109 EST on 3/11/01 with the reactor already subcritical during the insertion of control bank 'B', the licensee noted that the group 2 step counter stopped moving at 53 steps. Technical specification 3.1.3.3 requires the reactor trip breakers to be opened within 15 minutes and at 0119 EST the licensee performed a manual reactor trip opening the trip breakers. The plant is entering a refueling outage and the problem will be corrected before startup.
The licensee intends to notify the NRC Resident Inspector.