Event Notification Report for March 08, 2013
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/07/2013 - 03/08/2013
Power Reactor
Event Number: 48814
Facility: PALO VERDE
Region: 4 State: AZ
Unit: [1] [2] [3]
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: SEAN DAVISON
HQ OPS Officer: DONG HWA PARK
Region: 4 State: AZ
Unit: [1] [2] [3]
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: SEAN DAVISON
HQ OPS Officer: DONG HWA PARK
Notification Date: 03/09/2013
Notification Time: 04:57 [ET]
Event Date: 03/08/2013
Event Time: 19:21 [MST]
Last Update Date: 03/09/2013
Notification Time: 04:57 [ET]
Event Date: 03/08/2013
Event Time: 19:21 [MST]
Last Update Date: 03/09/2013
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
Person (Organization):
DALE POWERS (R4DO)
DALE POWERS (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 3 | N | Y | 100 | Power Operation | 100 | Power Operation |
SPENT FUEL POOL CRITICALITY ANALYSIS OF RECORD NOT REVISED FOLLOWING POWER UPRATE
"During review of industry operating experience, engineering personnel determined the Palo Verde Nuclear Generating Station (PVNGS) analysis of record (AOR) for Spent Fuel Pool (SFP) criticality was not revised to support a license amendment to allow power uprate to 3990 MW thermal. The power uprate impacted the reactivity of fuel discharged to the SFP but the SFP criticality AOR was not revised to account for the impact to fuel reactivity. At 1921 [MST] on March 8, 2013, PVNGS received preliminary analysis from Westinghouse that indicates the current AOR for SFP criticality is nonconservative due to the impact of the power uprate. However, significant margin is maintained to SFP criticality at the current Technical Specification minimum SFP boron concentration requirement of 2150 parts per million (ppm) and additional margin is provided by procedure requirements which maintain SFP boron concentration greater than 4000 ppm. Margin also exists due to the maximum fuel enrichment used at PVNGS being less than the fuel enrichment assumed in the AOR.
"The SFP criticality analysis supports Technical Specification (TS) LCOs 3.7.15 (Fuel Storage Pool Boron Concentration) and 3.7.17 (Spent Fuel Assembly Storage) as well as TS Design Features 4.3.1 (Fuel Storage Criticality).
"This notification is being made pursuant to the reporting requirements of 10CFR50.72 (b)(3)(ii)(B) to describe an unanalyzed condition. The NRC Resident Inspector has been notified of this condition."
"During review of industry operating experience, engineering personnel determined the Palo Verde Nuclear Generating Station (PVNGS) analysis of record (AOR) for Spent Fuel Pool (SFP) criticality was not revised to support a license amendment to allow power uprate to 3990 MW thermal. The power uprate impacted the reactivity of fuel discharged to the SFP but the SFP criticality AOR was not revised to account for the impact to fuel reactivity. At 1921 [MST] on March 8, 2013, PVNGS received preliminary analysis from Westinghouse that indicates the current AOR for SFP criticality is nonconservative due to the impact of the power uprate. However, significant margin is maintained to SFP criticality at the current Technical Specification minimum SFP boron concentration requirement of 2150 parts per million (ppm) and additional margin is provided by procedure requirements which maintain SFP boron concentration greater than 4000 ppm. Margin also exists due to the maximum fuel enrichment used at PVNGS being less than the fuel enrichment assumed in the AOR.
"The SFP criticality analysis supports Technical Specification (TS) LCOs 3.7.15 (Fuel Storage Pool Boron Concentration) and 3.7.17 (Spent Fuel Assembly Storage) as well as TS Design Features 4.3.1 (Fuel Storage Criticality).
"This notification is being made pursuant to the reporting requirements of 10CFR50.72 (b)(3)(ii)(B) to describe an unanalyzed condition. The NRC Resident Inspector has been notified of this condition."
General Information
Event Number: 48816
Rep Org: FISHER CONTROLS INTERNATIONAL, LLC
Licensee: FISHER CONTROLS INTERNATIONAL, LLC
Region: 3
City: MARSHALLTOWN State: IA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: CHAD ENGLE
HQ OPS Officer: JOHN SHOEMAKER
Licensee: FISHER CONTROLS INTERNATIONAL, LLC
Region: 3
City: MARSHALLTOWN State: IA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: CHAD ENGLE
HQ OPS Officer: JOHN SHOEMAKER
Notification Date: 03/12/2013
Notification Time: 17:10 [ET]
Event Date: 03/08/2013
Event Time: 00:00 [CDT]
Last Update Date: 03/12/2013
Notification Time: 17:10 [ET]
Event Date: 03/08/2013
Event Time: 00:00 [CDT]
Last Update Date: 03/12/2013
Emergency Class: NON EMERGENCY
10 CFR Section:
50.55(e) - CONSTRUCT DEFICIENCY
10 CFR Section:
50.55(e) - CONSTRUCT DEFICIENCY
Person (Organization):
GLENN DENTEL (R1DO)
KATHLEEN O'DONOHUE (R2DO)
BILLY DICKSON (R3DO)
DALE POWERS (R4DO)
NRR 50.55 COORD
GLENN DENTEL (R1DO)
KATHLEEN O'DONOHUE (R2DO)
BILLY DICKSON (R3DO)
DALE POWERS (R4DO)
NRR 50.55 COORD
CONSTRUCTION DEFICIENCY INVOLVING LOOSE PROXIMITY SWITCH TARGET MAGNETS
The following is a summary of information received from Fisher Control International, LLC. via facsimile:
"Equipment Affected By This Information Notice: Items provided to Westinghouse Electric Company, LLC on purchase order 4500325241. TAG# APP-PV-20-ZOD-101, Fisher Serial numbers 19447200 and 19451246.
"Purpose: The purpose of this Fisher Information Notice (FIN) is to alert Westinghouse Electric Company, LLC (WEC) that as of 1/30/2013, Fisher Controls International, LLC. (Fisher) became aware of the possibility of a situation which may affect the performance of the aforementioned equipment, including their safety-related function.
"We [Fisher] are informing WEC of this circumstance in accordance with Section 50.55(e) of 10CFR50.
"Applicability: This notice applies only to the subject equipment supplied by Fisher, identified above, that was provided to WEC.
"Discussion: It was determined that at least one of the proximity switch target magnet (find #203 on the drawing GE48644) installed on the subject equipment was loose when received by WEC. Therefore, the switch would not have been operable.
"Action Required: Fisher will perform the repair work on-site at Dockside Logistics. In addition, a Corrective Action Request (CAR) has been initiated by Fisher to prevent reoccurrence of this issue, mandating procedures to functionally test all accessories.
"10CFR50.55 Implications: Fisher requests that the recipient of this notice review it and take appropriate action in accordance with 10CFR50.55."
"If there are any technical questions or concerns, please contact:
George Baitinger
Manager, Quality
Fisher Controls International, LLC
301 South First Avenue
Marshalltown, IA. 50158
Fax: (641) 754-2854
Phone: (641) 754-2026
George.Baitinger@Emerson.com"
Fisher Information Notice FIN 2013-02.
The following is a summary of information received from Fisher Control International, LLC. via facsimile:
"Equipment Affected By This Information Notice: Items provided to Westinghouse Electric Company, LLC on purchase order 4500325241. TAG# APP-PV-20-ZOD-101, Fisher Serial numbers 19447200 and 19451246.
"Purpose: The purpose of this Fisher Information Notice (FIN) is to alert Westinghouse Electric Company, LLC (WEC) that as of 1/30/2013, Fisher Controls International, LLC. (Fisher) became aware of the possibility of a situation which may affect the performance of the aforementioned equipment, including their safety-related function.
"We [Fisher] are informing WEC of this circumstance in accordance with Section 50.55(e) of 10CFR50.
"Applicability: This notice applies only to the subject equipment supplied by Fisher, identified above, that was provided to WEC.
"Discussion: It was determined that at least one of the proximity switch target magnet (find #203 on the drawing GE48644) installed on the subject equipment was loose when received by WEC. Therefore, the switch would not have been operable.
"Action Required: Fisher will perform the repair work on-site at Dockside Logistics. In addition, a Corrective Action Request (CAR) has been initiated by Fisher to prevent reoccurrence of this issue, mandating procedures to functionally test all accessories.
"10CFR50.55 Implications: Fisher requests that the recipient of this notice review it and take appropriate action in accordance with 10CFR50.55."
"If there are any technical questions or concerns, please contact:
George Baitinger
Manager, Quality
Fisher Controls International, LLC
301 South First Avenue
Marshalltown, IA. 50158
Fax: (641) 754-2854
Phone: (641) 754-2026
George.Baitinger@Emerson.com"
Fisher Information Notice FIN 2013-02.