Event Notification Report for October 11, 2013
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/10/2013 - 10/11/2013
Power Reactor
Event Number: 49429
Facility: NORTH ANNA
Region: 2 State: VA
Unit: [1] [] []
RX Type: [1] W-3-LP,[2] W-3-LP,[3] M-4-LP
NRC Notified By: PAGE KEMP
HQ OPS Officer: DONG HWA PARK
Region: 2 State: VA
Unit: [1] [] []
RX Type: [1] W-3-LP,[2] W-3-LP,[3] M-4-LP
NRC Notified By: PAGE KEMP
HQ OPS Officer: DONG HWA PARK
Notification Date: 10/11/2013
Notification Time: 15:07 [ET]
Event Date: 10/11/2013
Event Time: 13:17 [EDT]
Last Update Date: 10/11/2013
Notification Time: 15:07 [ET]
Event Date: 10/11/2013
Event Time: 13:17 [EDT]
Last Update Date: 10/11/2013
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):
MALCOLM WIDMANN (R2DO)
MALCOLM WIDMANN (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | A/R | Y | 48 | Power Operation | 0 | Hot Standby |
AUTOMATIC TURBINE AND REACTOR TRIP DUE TO STATION SERVICE TRANSFORMER LOCKOUT
"At 1317 hours on 10/11/2013, Unit 1 experienced an automatic turbine and reactor trip from 48% power. Unit 1 was in the process of increasing power level following a refueling outage when the 1C Station Service Transformer Lockout Relay actuated as the 'C' Condensate Pump was started. The 1C Station Service Transformer Lockout resulted in the turbine trip which subsequently tripped the reactor. All three station service electrical buses transferred to the Reserve Station Service Transformers. The 1C Station Service Transformer does not have any visible exterior damage. All control rods fully inserted into the core following the reactor trip. The actuation of the Reactor Protection System is reportable per 10CFR50.72(b)(2)(iv)(B).
"The Auxiliary Feedwater Pumps actuated as designed following the trip and provided makeup flow to the steam generators. The steam generator levels were returned to normal operating level and the Auxiliary Feedwater Pumps were returned to automatic. The actuation of the Auxiliary Feedwater Pumps is reportable per 10CFR50.72(b)(3)(iv)(A).
"Due to low decay heat loads, the Main Steam Trip Valves were closed as the Reactor Coolant Tavg temperature decreased, as directed by the reactor trip response procedure and decay heat is being removed using the atmospheric steam dumps. Decay heat control will be transferred to the main condenser steam dump system.
"Unit 1 is stable in Mode 3 at normal Reactor Coolant System temperature and pressure. Unit 2 is operating at 100% power and was not affected by this event."
The licensee has notified the NRC Resident Inspector and the local government.
"At 1317 hours on 10/11/2013, Unit 1 experienced an automatic turbine and reactor trip from 48% power. Unit 1 was in the process of increasing power level following a refueling outage when the 1C Station Service Transformer Lockout Relay actuated as the 'C' Condensate Pump was started. The 1C Station Service Transformer Lockout resulted in the turbine trip which subsequently tripped the reactor. All three station service electrical buses transferred to the Reserve Station Service Transformers. The 1C Station Service Transformer does not have any visible exterior damage. All control rods fully inserted into the core following the reactor trip. The actuation of the Reactor Protection System is reportable per 10CFR50.72(b)(2)(iv)(B).
"The Auxiliary Feedwater Pumps actuated as designed following the trip and provided makeup flow to the steam generators. The steam generator levels were returned to normal operating level and the Auxiliary Feedwater Pumps were returned to automatic. The actuation of the Auxiliary Feedwater Pumps is reportable per 10CFR50.72(b)(3)(iv)(A).
"Due to low decay heat loads, the Main Steam Trip Valves were closed as the Reactor Coolant Tavg temperature decreased, as directed by the reactor trip response procedure and decay heat is being removed using the atmospheric steam dumps. Decay heat control will be transferred to the main condenser steam dump system.
"Unit 1 is stable in Mode 3 at normal Reactor Coolant System temperature and pressure. Unit 2 is operating at 100% power and was not affected by this event."
The licensee has notified the NRC Resident Inspector and the local government.
Fuel Cycle Facility
Event Number: 49430
Facility: HONEYWELL INTERNATIONAL, INC.
Region: 2 State: IL
Unit: [] [] []
RX Type: URANIUM HEXAFLUORIDE PRODUCTION
NRC Notified By: MICHAEL ABEL
HQ OPS Officer: DONG HWA PARK
Region: 2 State: IL
Unit: [] [] []
RX Type: URANIUM HEXAFLUORIDE PRODUCTION
NRC Notified By: MICHAEL ABEL
HQ OPS Officer: DONG HWA PARK
Notification Date: 10/11/2013
Notification Time: 16:00 [ET]
Event Date: 10/11/2013
Event Time: 12:30 [CDT]
Last Update Date: 10/11/2013
Notification Time: 16:00 [ET]
Event Date: 10/11/2013
Event Time: 12:30 [CDT]
Last Update Date: 10/11/2013
Emergency Class: NON EMERGENCY
10 CFR Section:
40.60(b)(3) - MED TREAT INVOLVING CONTAM
10 CFR Section:
40.60(b)(3) - MED TREAT INVOLVING CONTAM
Person (Organization):
MALCOLM WIDMANN (R2DO)
PETER HABIGHORST (NMSS)
MALCOLM WIDMANN (R2DO)
PETER HABIGHORST (NMSS)
UNPLANNED MEDICAL TREATMENT OF CONTAMINATED INDIVIDUAL
"An employee reported to the on-site dispensary this afternoon [on 10/11/13,] with a bump and minor cuts on her head. The plant nurse administered first aid and then sent the employee to an off-site medical facility for further evaluation. A whole body survey of the employee in her plant clothing was performed while in the dispensary; the maximum amount of contamination found was present on the employee's boots, 4,600 dpm/100cm2. Prior to leaving the Restricted Area, the employee removed all plant clothing, changed into her personal clothing, and exit monitored from the facility. The employee was free of contamination upon release."
The licensee was unable to contact Region II due to the government shutdown.
"An employee reported to the on-site dispensary this afternoon [on 10/11/13,] with a bump and minor cuts on her head. The plant nurse administered first aid and then sent the employee to an off-site medical facility for further evaluation. A whole body survey of the employee in her plant clothing was performed while in the dispensary; the maximum amount of contamination found was present on the employee's boots, 4,600 dpm/100cm2. Prior to leaving the Restricted Area, the employee removed all plant clothing, changed into her personal clothing, and exit monitored from the facility. The employee was free of contamination upon release."
The licensee was unable to contact Region II due to the government shutdown.