Event Notification Report for March 18, 2005
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/17/2005 - 03/18/2005
Power Reactor
Event Number: 41502
Facility: PALO VERDE
Region: 4 State: AZ
Unit: [1] [] []
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: STEVE SMITH
HQ OPS Officer: BILL GOTT
Region: 4 State: AZ
Unit: [1] [] []
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: STEVE SMITH
HQ OPS Officer: BILL GOTT
Notification Date: 03/18/2005
Notification Time: 17:51 [ET]
Event Date: 03/18/2005
Event Time: 15:00 [MST]
Last Update Date: 03/18/2005
Notification Time: 17:51 [ET]
Event Date: 03/18/2005
Event Time: 15:00 [MST]
Last Update Date: 03/18/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
Person (Organization):
TOM FARNHOLTZ (R4)
TOM FARNHOLTZ (R4)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 70 | Power Operation |
TECHNICAL SPECIFICATION REQUIRED SHUTDOWN DUE TO INOPERABLE DIESEL GENERATOR
The following information was obtained from the licensee via facsimile (licensee text in quotes):
"The following event description is based on information currently available. If through subsequent reviews of this event, additional information is identified that is pertinent to this event or alters the information being provided at this time, a follow-up notification will be made via the ENS or under the reporting requirements of 10CFR50.73.
"On March 18, 2005, at approximately 15:00 hours Mountain Standard Time (MST), Palo Verde Nuclear Generating Station (PVNGS) Unit 1 commenced a reactor shutdown required by Technical Specification 3.8.1.
"Limiting Condition for Operability (LCO) 3.8.1 requires two diesel generators (DGs) each capable of supplying one train of the onsite Class 1E AC Electrical Power Distribution System be available. On March 17, 2005, at approximately 04:11 MST, Unit 1 Diesel Generator "A" failed to start during its post maintenance retest. The diesel generator (DG) tripped on incomplete sequence. Prior to tripping, the DG reached approximately 100 rpm for fifteen seconds.
"It has been determined that the cause of the DG failure was due to a governor failure. The failed governor has been replaced. At 17:50 on March 17, 2005, DG "B" was tested satisfactorily to confirm there is not a common cause failure. Unit 1 is being shutdown because the retest of DG "A" requires the Unit to be in Mode 5. The LCO 3.8.1 would expire at 04:00 MST, March 19, 2005 requiring initiation of Shut Down required by Technical Specifications if no action was taken.
"The event did not result in the release of radioactivity to the environment and did not adversely affect the safe operation of the plant or health and safety of the public.
"The NRC Resident Inspector has been notified."
At the time of the notification, power was 70% and was being reduced in preparation for reactor shutdown to Mode 3.
The following information was obtained from the licensee via facsimile (licensee text in quotes):
"The following event description is based on information currently available. If through subsequent reviews of this event, additional information is identified that is pertinent to this event or alters the information being provided at this time, a follow-up notification will be made via the ENS or under the reporting requirements of 10CFR50.73.
"On March 18, 2005, at approximately 15:00 hours Mountain Standard Time (MST), Palo Verde Nuclear Generating Station (PVNGS) Unit 1 commenced a reactor shutdown required by Technical Specification 3.8.1.
"Limiting Condition for Operability (LCO) 3.8.1 requires two diesel generators (DGs) each capable of supplying one train of the onsite Class 1E AC Electrical Power Distribution System be available. On March 17, 2005, at approximately 04:11 MST, Unit 1 Diesel Generator "A" failed to start during its post maintenance retest. The diesel generator (DG) tripped on incomplete sequence. Prior to tripping, the DG reached approximately 100 rpm for fifteen seconds.
"It has been determined that the cause of the DG failure was due to a governor failure. The failed governor has been replaced. At 17:50 on March 17, 2005, DG "B" was tested satisfactorily to confirm there is not a common cause failure. Unit 1 is being shutdown because the retest of DG "A" requires the Unit to be in Mode 5. The LCO 3.8.1 would expire at 04:00 MST, March 19, 2005 requiring initiation of Shut Down required by Technical Specifications if no action was taken.
"The event did not result in the release of radioactivity to the environment and did not adversely affect the safe operation of the plant or health and safety of the public.
"The NRC Resident Inspector has been notified."
At the time of the notification, power was 70% and was being reduced in preparation for reactor shutdown to Mode 3.
Power Reactor
Event Number: 41503
Facility: OYSTER CREEK
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-2
NRC Notified By: FRANK CIGANIK
HQ OPS Officer: HOWIE CROUCH
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-2
NRC Notified By: FRANK CIGANIK
HQ OPS Officer: HOWIE CROUCH
Notification Date: 03/18/2005
Notification Time: 19:37 [ET]
Event Date: 03/18/2005
Event Time: 14:00 [EST]
Last Update Date: 03/18/2005
Notification Time: 19:37 [ET]
Event Date: 03/18/2005
Event Time: 14:00 [EST]
Last Update Date: 03/18/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
LAWRENCE DOERFLEIN (R1)
LAWRENCE DOERFLEIN (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
OTHER UNSPECIFIED REQUIREMENT - LICENSE CONDITION 2.C
The following information was obtained from the licensee via facsimile (licensee text in quotes):
"Report of a violation of the Technical Requirements contained in section 2C of the operating license, which requires initial notification within 24 hours to the NRC via the ENS with written follow-up within 30 days.
"A recent failure of the 'A' CRD pump to start required maintenance on an associated local shutdown panel. Troubleshooting indicated that a relay associated with the panel was the cause of the breaker for the pump to not be set up for a remote start from the control room. The relay in question malfunctioned on Feb. 17th so the 'A' CRD pump was not available since that time. The failure of this pump requires entry into a 7-day shutdown LCO. Troubleshooting, indicated there is firm evidence that this condition, which is prohibited by technical specifications, existed before the discovery on 3/16/5. A 7-day LCO was entered upon discovery and repairs have been completed and the LCO exited."
The licensee has notified the NRC Resident Inspector.
The following information was obtained from the licensee via facsimile (licensee text in quotes):
"Report of a violation of the Technical Requirements contained in section 2C of the operating license, which requires initial notification within 24 hours to the NRC via the ENS with written follow-up within 30 days.
"A recent failure of the 'A' CRD pump to start required maintenance on an associated local shutdown panel. Troubleshooting indicated that a relay associated with the panel was the cause of the breaker for the pump to not be set up for a remote start from the control room. The relay in question malfunctioned on Feb. 17th so the 'A' CRD pump was not available since that time. The failure of this pump requires entry into a 7-day shutdown LCO. Troubleshooting, indicated there is firm evidence that this condition, which is prohibited by technical specifications, existed before the discovery on 3/16/5. A 7-day LCO was entered upon discovery and repairs have been completed and the LCO exited."
The licensee has notified the NRC Resident Inspector.