Event Notification Report for November 01, 2008
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/31/2008 - 11/01/2008
Fuel Cycle Facility
Event Number: 44621
Facility: PADUCAH GASEOUS DIFFUSION PLANT
Region: 2 State: KY
Unit: [] [] []
RX Type: URANIUM ENRICHMENT FACILITY
Comments: 2 DEMOCRACY CENTER
6903 ROCKLEDGE DRIVE
BETHESDA, MD 20817 (301)564-3200
NRC Notified By: KEVIN BEASLEY
HQ OPS Officer: JOHN KNOKE
Region: 2 State: KY
Unit: [] [] []
RX Type: URANIUM ENRICHMENT FACILITY
Comments: 2 DEMOCRACY CENTER
6903 ROCKLEDGE DRIVE
BETHESDA, MD 20817 (301)564-3200
NRC Notified By: KEVIN BEASLEY
HQ OPS Officer: JOHN KNOKE
Notification Date: 11/01/2008
Notification Time: 14:36 [ET]
Event Date: 11/01/2008
Event Time: 08:37 [CDT]
Last Update Date: 11/01/2008
Notification Time: 14:36 [ET]
Event Date: 11/01/2008
Event Time: 08:37 [CDT]
Last Update Date: 11/01/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
76.120(c)(2) - SAFETY EQUIPMENT FAILURE
10 CFR Section:
76.120(c)(2) - SAFETY EQUIPMENT FAILURE
Person (Organization):
DEBORAH SEYMOUR (R2)
PATTI SILVA (NMSS)
DEBORAH SEYMOUR (R2)
PATTI SILVA (NMSS)
PROCESS GAS LEAK DETECTION SYSTEM NOT FUNCTIONING CORRECTLY
"At 0837 CDT, on 11-01-08 the Plant Shift Superintendent (PSS) was notified that the Process Gas Leak Detection (PGLD) system for C-333 Unit 5 Cell 3 was not functioning as required. An operator was preparing to test fire the system as required by TSR SR 2.4.4.1-1 when it was discovered that the Ready light was not illuminated. This PGLD system contains detectors that cover C-333 Unit 5 Cell 3 and Section 1 and 2 of the cell bypass piping. At the time of this failure, Unit 5 Cell 3 and some areas of Sections 1 and 2 of the cell bypass were operating above atmospheric pressure. TSR 2.4.4.1 requires that at least the minimum number of detector heads in the cell and in each defined section of the cell bypass are operable during steady state operations above atmospheric pressure. With the Unit 5 Cell 3 PGLD system inoperable, none of the required cell heads and only 2 of the required 3 heads in Sections 1 and 2 of the cell bypass were operable. This PGLD System was declared inoperable, TSR LCO 2.4.4.1.B.1 and 2.4.4.1.C.1 were entered and a continuous smoke watch was put in place within one hour. Engineering has determined that the system would not have been able to perform its intended safely function with the Ready light not illuminated.
"This event is reportable as a 24 hour event in accordance with 10CFR 76.120(c)(2)(i). This is an event in which equipment is disabled or fails to function as designed when:
a.) the equipment is required by a TSR to prevent releases, prevent exposures to radiation and radioactive materials exceeding specified limits, mitigate the consequences of an accident, or restore this facility to a pre-established safe condition after an accident;
b.) the equipment is required by a TSR to be available and operable and either should have been operating or should have operated on demand, and
c.) no redundant equipment is available and operable to perform the required safety function.
"The NRC Resident Inspector has been notified of this event."
PGDP Assessment and Tracking Report No. ATR.08-3142; PGDP Event Report No. PAD-2008.034;
"At 0837 CDT, on 11-01-08 the Plant Shift Superintendent (PSS) was notified that the Process Gas Leak Detection (PGLD) system for C-333 Unit 5 Cell 3 was not functioning as required. An operator was preparing to test fire the system as required by TSR SR 2.4.4.1-1 when it was discovered that the Ready light was not illuminated. This PGLD system contains detectors that cover C-333 Unit 5 Cell 3 and Section 1 and 2 of the cell bypass piping. At the time of this failure, Unit 5 Cell 3 and some areas of Sections 1 and 2 of the cell bypass were operating above atmospheric pressure. TSR 2.4.4.1 requires that at least the minimum number of detector heads in the cell and in each defined section of the cell bypass are operable during steady state operations above atmospheric pressure. With the Unit 5 Cell 3 PGLD system inoperable, none of the required cell heads and only 2 of the required 3 heads in Sections 1 and 2 of the cell bypass were operable. This PGLD System was declared inoperable, TSR LCO 2.4.4.1.B.1 and 2.4.4.1.C.1 were entered and a continuous smoke watch was put in place within one hour. Engineering has determined that the system would not have been able to perform its intended safely function with the Ready light not illuminated.
"This event is reportable as a 24 hour event in accordance with 10CFR 76.120(c)(2)(i). This is an event in which equipment is disabled or fails to function as designed when:
a.) the equipment is required by a TSR to prevent releases, prevent exposures to radiation and radioactive materials exceeding specified limits, mitigate the consequences of an accident, or restore this facility to a pre-established safe condition after an accident;
b.) the equipment is required by a TSR to be available and operable and either should have been operating or should have operated on demand, and
c.) no redundant equipment is available and operable to perform the required safety function.
"The NRC Resident Inspector has been notified of this event."
PGDP Assessment and Tracking Report No. ATR.08-3142; PGDP Event Report No. PAD-2008.034;
Power Reactor
Event Number: 46035
Facility: MILLSTONE
Region: 1 State: CT
Unit: [] [] [3]
RX Type: [1] GE-3,[2] CE,[3] W-4-LP
NRC Notified By: CALVIN ACKLEY
HQ OPS Officer: DONG HWA PARK
Region: 1 State: CT
Unit: [] [] [3]
RX Type: [1] GE-3,[2] CE,[3] W-4-LP
NRC Notified By: CALVIN ACKLEY
HQ OPS Officer: DONG HWA PARK
Notification Date: 06/22/2010
Notification Time: 15:52 [ET]
Event Date: 11/01/2008
Event Time: 04:30 [EDT]
Last Update Date: 06/22/2010
Notification Time: 15:52 [ET]
Event Date: 11/01/2008
Event Time: 04:30 [EDT]
Last Update Date: 06/22/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL
10 CFR Section:
50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL
Person (Organization):
JAMES DWYER (R1DO)
JAMES DWYER (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 3 | N | N | 0 | Refueling | 0 | Refueling |
HISTORICAL CONDITION PREVIOUSLY REPORTED IN LER 2008-005 SHOULD ALSO HAVE BEEN REPORTED IN ACCORDANCE WITH 10 CFR 50.72 (b)(3)(v)(C)
"A required containment penetration was not fully closed during fuel movement from November 1, 2008 until November 3, 2008. This was reported in LER 2008-005 as a condition prohibited by plant technical specifications.
"Upon further review, the condition that existed at Millstone Power Station Unit 3 and reported to the NRC in LER 2008-005, should also have been reported per the requirements of 10 CFR 50.72(b)(3)(v)(C). A supplement to LER 2008-005 will be submitted. The NRC Senior Resident Inspector has been notified."
"A required containment penetration was not fully closed during fuel movement from November 1, 2008 until November 3, 2008. This was reported in LER 2008-005 as a condition prohibited by plant technical specifications.
"Upon further review, the condition that existed at Millstone Power Station Unit 3 and reported to the NRC in LER 2008-005, should also have been reported per the requirements of 10 CFR 50.72(b)(3)(v)(C). A supplement to LER 2008-005 will be submitted. The NRC Senior Resident Inspector has been notified."