Event Notification Report for September 19, 2009
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/18/2009 - 09/19/2009
EVENT NUMBERS
45365
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Fuel Cycle Facility
Event Number: 45365
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: JOE BARLETTO
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: JOE BARLETTO
HQ OPS Officer: JOHN KNOKE
Notification Date: 09/19/2009
Notification Time: 21:04 [ET]
Event Date: 09/19/2009
Event Time: 13:23 [CDT]
Last Update Date: 09/23/2009
Notification Time: 21:04 [ET]
Event Date: 09/19/2009
Event Time: 13:23 [CDT]
Last Update Date: 09/23/2009
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):
BRIAN BONSER (R2DO)
BRIAN BONSER (R2DO)
HIGH VOLTAGE PROCESS GAS LEAK DETECTOR RENDERED INOPERABLE
"At 1323 CST, on 09-19-09 the Plant Shift Superintendent (PSS) was notified that C-315 (Tails Withdrawal facility) High Voltage Process Gas Leak Detector (PGLD) YE-10-2-6 was rendered inoperable during asbestos abatement activities. This PGLD system contains detectors that cover the C-315 UF6 condensers, accumulators, and piping heated housing. At the time of this failure, these areas were operating above atmospheric pressure. TSR 2.3.4.4 requires that all detector heads in this system be operable during operations above atmospheric pressure. This PGLD System was declared operable and returned to service at 1359 hours, which is within the one hour required by TSR LCO 2.3.4.4.A.1 to enter a continuous smoke watch. This event is reportable as a 24 hour event in accordance with 10 CFR 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. Once the reason for the failure was identified, the detector was repaired, the C-315 High Voltage PGLD system was tested and declared operable.
"The NRC Senior Resident Inspector has been notified of this event."
PGDP Assessment and Tracking Report No. ATR-09-2284
PGDP Event Report No. PAD-2009-15
* * * RETRACTION FROM DERRICK WARFORD TO DONG PARK ON 9/23/2009 AT 1553 EDT * * *
"After review, it was determined that a redundant operable PGLD detector was available to perform the intended safety function. Therefore according to 10CFR76.120, this event is not reportable. The NRC Resident Inspector has been notified of this retraction. "
Notified the R2DO (Rudisail) and NMSS (Waters).
"At 1323 CST, on 09-19-09 the Plant Shift Superintendent (PSS) was notified that C-315 (Tails Withdrawal facility) High Voltage Process Gas Leak Detector (PGLD) YE-10-2-6 was rendered inoperable during asbestos abatement activities. This PGLD system contains detectors that cover the C-315 UF6 condensers, accumulators, and piping heated housing. At the time of this failure, these areas were operating above atmospheric pressure. TSR 2.3.4.4 requires that all detector heads in this system be operable during operations above atmospheric pressure. This PGLD System was declared operable and returned to service at 1359 hours, which is within the one hour required by TSR LCO 2.3.4.4.A.1 to enter a continuous smoke watch. This event is reportable as a 24 hour event in accordance with 10 CFR 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. Once the reason for the failure was identified, the detector was repaired, the C-315 High Voltage PGLD system was tested and declared operable.
"The NRC Senior Resident Inspector has been notified of this event."
PGDP Assessment and Tracking Report No. ATR-09-2284
PGDP Event Report No. PAD-2009-15
* * * RETRACTION FROM DERRICK WARFORD TO DONG PARK ON 9/23/2009 AT 1553 EDT * * *
"After review, it was determined that a redundant operable PGLD detector was available to perform the intended safety function. Therefore according to 10CFR76.120, this event is not reportable. The NRC Resident Inspector has been notified of this retraction. "
Notified the R2DO (Rudisail) and NMSS (Waters).