Event Notification Report for October 31, 2006
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/30/2006 - 10/31/2006
Power Reactor
Event Number: 42950
Facility: COLUMBIA GENERATING STATION
Region: 4 State: WA
Unit: [2] [] []
RX Type: [2] GE-5
NRC Notified By: DON GREGOIRE
HQ OPS Officer: MARK ABRAMOVITZ
Region: 4 State: WA
Unit: [2] [] []
RX Type: [2] GE-5
NRC Notified By: DON GREGOIRE
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 10/31/2006
Notification Time: 10:04 [ET]
Event Date: 10/31/2006
Event Time: 04:45 [PST]
Last Update Date: 10/31/2006
Notification Time: 10:04 [ET]
Event Date: 10/31/2006
Event Time: 04:45 [PST]
Last Update Date: 10/31/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
DALE POWERS (R4)
DALE POWERS (R4)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | A/R | Y | 100 | Power Operation | 0 | Hot Shutdown |
REACTOR TRIP FROM TURBINE TRIP ON LOW AUTO STOP OIL PRESSURE
"Reactor trip at 0445 following a turbine trip. Initial indication of cause is turbine trip due to low auto stop oil pressure. There were no complications in plant response. Plant is stabilized in mode three, heat removal is being maintained by turbine bypass valves."
All control rods fully inserted on the trip, no safety or relief valves lifted during the transient, reactor water level 3 isolations did isolate, and the minimum level attained during the transient was -6 inches. Vessel water level is being maintained with normal feedwater flow and the electrical lineup is the normal shut-down electrical lineup. The cause of the low auto stop oil pressure is under investigation.
The licensee notified the NRC Resident Inspector.
* * * UPDATE FROM LICENSEE (M. HUMMER) TO M. RIPLEY AT 1439 EST ON 10/31/06 * * *
"In response to questions raised during this event notification, a verbal response was provided to the NRC that an 8 hour notification in accordance with 50.72(b)(3)(iv)(A) [Specified System Actuation] was required. Upon further review it has been determined by Energy Northwest that this notification was not required because all required reporting was satisfied by 50.72(b)(2)(iv)(B)."
The licensee will notify the NRC Resident Inspector. Notified R4 DO (D. POWERS)
"Reactor trip at 0445 following a turbine trip. Initial indication of cause is turbine trip due to low auto stop oil pressure. There were no complications in plant response. Plant is stabilized in mode three, heat removal is being maintained by turbine bypass valves."
All control rods fully inserted on the trip, no safety or relief valves lifted during the transient, reactor water level 3 isolations did isolate, and the minimum level attained during the transient was -6 inches. Vessel water level is being maintained with normal feedwater flow and the electrical lineup is the normal shut-down electrical lineup. The cause of the low auto stop oil pressure is under investigation.
The licensee notified the NRC Resident Inspector.
* * * UPDATE FROM LICENSEE (M. HUMMER) TO M. RIPLEY AT 1439 EST ON 10/31/06 * * *
"In response to questions raised during this event notification, a verbal response was provided to the NRC that an 8 hour notification in accordance with 50.72(b)(3)(iv)(A) [Specified System Actuation] was required. Upon further review it has been determined by Energy Northwest that this notification was not required because all required reporting was satisfied by 50.72(b)(2)(iv)(B)."
The licensee will notify the NRC Resident Inspector. Notified R4 DO (D. POWERS)
Power Reactor
Event Number: 42951
Facility: HARRIS
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: KELLI VOELSING
HQ OPS Officer: MIKE RIPLEY
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: KELLI VOELSING
HQ OPS Officer: MIKE RIPLEY
Notification Date: 10/31/2006
Notification Time: 13:14 [ET]
Event Date: 10/31/2006
Event Time: 06:10 [EST]
Last Update Date: 10/31/2006
Notification Time: 13:14 [ET]
Event Date: 10/31/2006
Event Time: 06:10 [EST]
Last Update Date: 10/31/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
CAROLYN EVANS (R2)
CAROLYN EVANS (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
OFFSITE EMERGENCY SIRENS INOPERABLE
"At 0810, Eastern Standard Time, the Harris Nuclear Plant (HNP) determined that the offsite emergency sirens were not capable of being activated. This event requires an 8-hour non-emergency notification per 10CFR 50.72(b)(3)(xiii) due to the loss of a significant portion of the offsite notification system. The NRC Senior Resident Inspector was informed. In the event that the sirens had been needed, the State of North Carolina and all four counties within the 10-mile emergency planning zone would have implemented mobile route alerting, as detailed In the Emergency Plan. Tone Alert Radios for notification of residents within the 5-mile emergency planning zone were also available and operable.
"The siren failures began to occur during the regularly scheduled 12-hour test at 0510. The most probable cause was a failed 'B' Repeater which rendered the controller at the microwave tower unable to activate the sirens. The 'B' Repeater was removed from the system and all sirens were operating as designed following a satisfactory system test at 0748. The State of North Carolina and all four counties within the 10-mile emergency planning zone were briefed on this occurrence and notified of system restoration by 1145. The plant continues to troubleshoot to determine the cause of the 'B' Repeater failure. In the interim, HNP is conducting frequent interrogation of the siren system to ensure that the system continues to function correctly. The system is now operating with the 'A' Repeater. The 'B' Repeater will be replaced as a part of the troubleshooting and repair plan.
"HNP is responding to local media inquiries."
See directly related event EN # 42948 of 10/30/06
"At 0810, Eastern Standard Time, the Harris Nuclear Plant (HNP) determined that the offsite emergency sirens were not capable of being activated. This event requires an 8-hour non-emergency notification per 10CFR 50.72(b)(3)(xiii) due to the loss of a significant portion of the offsite notification system. The NRC Senior Resident Inspector was informed. In the event that the sirens had been needed, the State of North Carolina and all four counties within the 10-mile emergency planning zone would have implemented mobile route alerting, as detailed In the Emergency Plan. Tone Alert Radios for notification of residents within the 5-mile emergency planning zone were also available and operable.
"The siren failures began to occur during the regularly scheduled 12-hour test at 0510. The most probable cause was a failed 'B' Repeater which rendered the controller at the microwave tower unable to activate the sirens. The 'B' Repeater was removed from the system and all sirens were operating as designed following a satisfactory system test at 0748. The State of North Carolina and all four counties within the 10-mile emergency planning zone were briefed on this occurrence and notified of system restoration by 1145. The plant continues to troubleshoot to determine the cause of the 'B' Repeater failure. In the interim, HNP is conducting frequent interrogation of the siren system to ensure that the system continues to function correctly. The system is now operating with the 'A' Repeater. The 'B' Repeater will be replaced as a part of the troubleshooting and repair plan.
"HNP is responding to local media inquiries."
See directly related event EN # 42948 of 10/30/06
Power Reactor
Event Number: 42952
Facility: CALLAWAY
Region: 4 State: MO
Unit: [1] [] []
RX Type: [1] W-4-LP
NRC Notified By: S. GANZ
HQ OPS Officer: MIKE RIPLEY
Region: 4 State: MO
Unit: [1] [] []
RX Type: [1] W-4-LP
NRC Notified By: S. GANZ
HQ OPS Officer: MIKE RIPLEY
Notification Date: 10/31/2006
Notification Time: 20:14 [ET]
Event Date: 10/31/2006
Event Time: 00:00 [CST]
Last Update Date: 10/31/2006
Notification Time: 20:14 [ET]
Event Date: 10/31/2006
Event Time: 00:00 [CST]
Last Update Date: 10/31/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
DALE POWERS (R4)
MELVYN LEACH (IRD)
STUART RICHARDS (NRR)
DALE POWERS (R4)
MELVYN LEACH (IRD)
STUART RICHARDS (NRR)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
CONTRACTOR EMPLOYEE FATALITY
"This report is being made pursuant to 10CFR50.72(b)(2)(xi), 4-hour Non-Emergency Report due to potential media interest and offsite notification. At approximately 1130 CST on October 31, 2006, the Callaway Plant control room was notified of a non-work related medical emergency involving a Wackenhut contract employee. Onsite medical personnel responded to the scene and administered first aid for an apparent heart attack. An ambulance was dispatched and the individual was transported offsite to a local hospital. The individual was not contaminated.
"At approximately 1545 [CST], Callaway Plant was notified that the individual had passed away. Wackenhut notified OSHA of the fatality at 1745 [CST]. At this time no press release is planned."
The licensee stated that the employee was a security officer attending classroom training and was not on duty at the time of the incident.
The licensee notified the NRC Resident Inspector.
"This report is being made pursuant to 10CFR50.72(b)(2)(xi), 4-hour Non-Emergency Report due to potential media interest and offsite notification. At approximately 1130 CST on October 31, 2006, the Callaway Plant control room was notified of a non-work related medical emergency involving a Wackenhut contract employee. Onsite medical personnel responded to the scene and administered first aid for an apparent heart attack. An ambulance was dispatched and the individual was transported offsite to a local hospital. The individual was not contaminated.
"At approximately 1545 [CST], Callaway Plant was notified that the individual had passed away. Wackenhut notified OSHA of the fatality at 1745 [CST]. At this time no press release is planned."
The licensee stated that the employee was a security officer attending classroom training and was not on duty at the time of the incident.
The licensee notified the NRC Resident Inspector.