Event Notification Report for January 12, 2014
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/11/2014 - 01/12/2014
EVENT NUMBERS
49717
49717
Power Reactor
Event Number: 49717
Facility: FORT CALHOUN
Region: 4 State: NE
Unit: [1] [] []
RX Type: (1) CE
NRC Notified By: SCOTT MOECK
HQ OPS Officer: RYAN ALEXANDER
Region: 4 State: NE
Unit: [1] [] []
RX Type: (1) CE
NRC Notified By: SCOTT MOECK
HQ OPS Officer: RYAN ALEXANDER
Notification Date: 01/12/2014
Notification Time: 06:44 [ET]
Event Date: 01/12/2014
Event Time: 03:23 [CST]
Last Update Date: 01/16/2014
Notification Time: 06:44 [ET]
Event Date: 01/12/2014
Event Time: 03:23 [CST]
Last Update Date: 01/16/2014
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
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
WAYNE WALKER (R4DO)
WAYNE WALKER (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | M/R | Y | 0 | Startup | 0 | Hot Standby |
MANUAL REACTOR TRIP FOLLOWING CONTROL ROD POSITION DEVIATION
"After achieving criticality a deviation between control rods was observed by plant personnel. When attempting to level the control rods, one rod could not insert to the level of the rest of the group. A manual reactor trip was initiated by the operating crew. All tripable control rods fully inserted into the core."
The trip was uncomplicated and the licensee is investigating the cause of the control rod position deviation.
The licensee has notified the NRC Resident Inspector.
* * * UPDATE FROM SCOTT MOECK TO JOHN SHOEMAKER AT 1320 EST ON 1/16/14 * * *
Report was updated to indicate 8-hour reportable criteria for Valid Specified System Actuation (Reactor Protection System).
The licensee will notify the NRC Resident Inspector.
Notified the R4DO (Kellar).
"After achieving criticality a deviation between control rods was observed by plant personnel. When attempting to level the control rods, one rod could not insert to the level of the rest of the group. A manual reactor trip was initiated by the operating crew. All tripable control rods fully inserted into the core."
The trip was uncomplicated and the licensee is investigating the cause of the control rod position deviation.
The licensee has notified the NRC Resident Inspector.
* * * UPDATE FROM SCOTT MOECK TO JOHN SHOEMAKER AT 1320 EST ON 1/16/14 * * *
Report was updated to indicate 8-hour reportable criteria for Valid Specified System Actuation (Reactor Protection System).
The licensee will notify the NRC Resident Inspector.
Notified the R4DO (Kellar).