Event Notification Report for December 04, 2006
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/03/2006 - 12/04/2006
Power Reactor
Event Number: 43031
Facility: SUMMER
Region: 2 State: SC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: CHARLES MCKINNEY
HQ OPS Officer: JOE O'HARA
Region: 2 State: SC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: CHARLES MCKINNEY
HQ OPS Officer: JOE O'HARA
Notification Date: 12/05/2006
Notification Time: 13:52 [ET]
Event Date: 12/04/2006
Event Time: 13:25 [EST]
Last Update Date: 12/05/2006
Notification Time: 13:52 [ET]
Event Date: 12/04/2006
Event Time: 13:25 [EST]
Last Update Date: 12/05/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
21.21 - UNSPECIFIED PARAGRAPH
10 CFR Section:
21.21 - UNSPECIFIED PARAGRAPH
Person (Organization):
MARVIN SYKES (R1)
KERRY LANDIS (R2)
CHRISTINE LIPA (R3)
LINDA SMITH (R4)
VERN HODGE (EMAIL)
MARVIN SYKES (R1)
KERRY LANDIS (R2)
CHRISTINE LIPA (R3)
LINDA SMITH (R4)
VERN HODGE (EMAIL)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
POTENTIAL DEFECTIVE WOODWARD GOVERNOR FOR FAIRBANKS MORSE EDG
"South Carolina Electric & Gas Company makes the following notification under 10 CFR 21.21(d)(3)(i) of a defect found during pre-installation testing of a Fairbanks Morse Woodward 2301 A/DRU governor. This governor was not installed on the Virgil C. Summer Nuclear Station Emergency Diesel Generators (EDG).
"The Fairbanks failure mode effect analysis (FMEA) states that when 125 VDC power is lost to the governor Digital Reference Unit (DRU), the speed reference signal goes to 0 VDC and that the Control Module will respond to drive the EDG to rated speed of 514 rpm. When this failure mode was tested, removal of the 125 VDC power resulted in a speed reference signal of -4 VDC. This would result in the governor Control Module driving the EDG to the low speed set point of 300 rpm. The failure to achieve rated speed would prevent the EDG from performing its safety function.
"Following a loss of 125 VDC power, the DRU must be manually reset in order for the Control Module to drive the EDG to rated speed. Users of this governor, that are not aware of this failure mode, may be unaware that the in-service EDG would be unable to meet the Technical Specification requirements unless surveillance tests were performed following the loss of power."
The licensee will notify the NRC Resident Inspector.
"South Carolina Electric & Gas Company makes the following notification under 10 CFR 21.21(d)(3)(i) of a defect found during pre-installation testing of a Fairbanks Morse Woodward 2301 A/DRU governor. This governor was not installed on the Virgil C. Summer Nuclear Station Emergency Diesel Generators (EDG).
"The Fairbanks failure mode effect analysis (FMEA) states that when 125 VDC power is lost to the governor Digital Reference Unit (DRU), the speed reference signal goes to 0 VDC and that the Control Module will respond to drive the EDG to rated speed of 514 rpm. When this failure mode was tested, removal of the 125 VDC power resulted in a speed reference signal of -4 VDC. This would result in the governor Control Module driving the EDG to the low speed set point of 300 rpm. The failure to achieve rated speed would prevent the EDG from performing its safety function.
"Following a loss of 125 VDC power, the DRU must be manually reset in order for the Control Module to drive the EDG to rated speed. Users of this governor, that are not aware of this failure mode, may be unaware that the in-service EDG would be unable to meet the Technical Specification requirements unless surveillance tests were performed following the loss of power."
The licensee will notify the NRC Resident Inspector.
General Information or Other
Event Number: 43022
Rep Org: FLORIDA BUREAU OF RADIATION CONTROL
Licensee: BTL ENGINEERING
Region: 1
City: TARPIN SPRINGS State: FL
County: PINELLAS
License #: 1315-1
Agreement: Y
Docket:
NRC Notified By: STEVE FURNACE
HQ OPS Officer: BILL GOTT
Licensee: BTL ENGINEERING
Region: 1
City: TARPIN SPRINGS State: FL
County: PINELLAS
License #: 1315-1
Agreement: Y
Docket:
NRC Notified By: STEVE FURNACE
HQ OPS Officer: BILL GOTT
Notification Date: 12/04/2006
Notification Time: 14:05 [ET]
Event Date: 12/04/2006
Event Time: 11:46 [EST]
Last Update Date: 12/04/2006
Notification Time: 14:05 [ET]
Event Date: 12/04/2006
Event Time: 11:46 [EST]
Last Update Date: 12/04/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
MARVIN SYKES (R1)
GREG MORELL (NMSS)
MELVYN LEACH (IRD)
MARVIN SYKES (R1)
GREG MORELL (NMSS)
MELVYN LEACH (IRD)
AGREEMENT STATE REPORT - DAMAGED MOISTURE DENSITY GAUGE
A truck carrying a CPN Model MCI PRT moisture density gauge (10 millicuries Cs-137; 50 millicuries Am-241:Be) was involved in a transportation accident. The moisture density gauge was thrown from the truck when the truck flipped over. The driver was injured and taken to the hospital. The company RSO responded and reported that the gauge remained in its case and the gauge was not damaged. There was no detectable radiation leakage. The gauge is in the possession of the company's RSO who will send it for a leak test tomorrow, 12/05/06.
A truck carrying a CPN Model MCI PRT moisture density gauge (10 millicuries Cs-137; 50 millicuries Am-241:Be) was involved in a transportation accident. The moisture density gauge was thrown from the truck when the truck flipped over. The driver was injured and taken to the hospital. The company RSO responded and reported that the gauge remained in its case and the gauge was not damaged. There was no detectable radiation leakage. The gauge is in the possession of the company's RSO who will send it for a leak test tomorrow, 12/05/06.