United States Nuclear Regulatory Commission - Protecting People and the Environment
Home > NRC Library > Document Collections > Reports Associated with Events > Event Notification Reports > 2004 > September 6

Event Notification Report for September 6, 2004

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
09/03/2004 - 09/06/2004

** EVENT NUMBERS **


41006 41007 41017 41018 41019 41020 41021 41022

To top of page
Power Reactor Event Number: 41006
Facility: SAINT LUCIE
Region: 2 State: FL
Unit: [1] [2] [ ]
RX Type: [1] CE,[2] CE
NRC Notified By: D. EMLING
HQ OPS Officer: BILL GOTT
Notification Date: 09/02/2004
Notification Time: 11:09 [ET]
Event Date: 09/02/2004
Event Time: 10:43 [EDT]
Last Update Date: 09/05/2004
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
JAY HENSON (R2)
TERRY REIS (NRR)
RICHARD WESSMAN (IRD)
COSTELLO ()
KEVIN BISCOE (FEMA)
ROSEMARY HOGAN (EDO)

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

Event Text

NOTICE OF UNUSUAL EVENT DECLARED

St. Lucie declared a Notification of Unusual Event due to hurricane warning in effect for the plant and surrounding areas.

The Licensee will notify the NRC Resident Inspector.

* * * UPDATE ON 9/3/04 AT 2035 EDT FROM JAMES HURCHALLA TO GERRY WAIG * * *

"Unusual Event update to State Warning Point at 2000 EDT. Both unit 1 and unit 2 in unusual event due to hurricane warning in effect. Unit 1 [is] currently being down-powered off line, unit 2 will commence the downpower at approximately 2100 [EDT] in preparation for the storm. Both units [are] expected off line by 0000."

The licensee notified the NRC Resident Inspector, state, and local officials.

Notified R2DO (Joel Munday).

* * * UPDATE ON 9/05/04 AT 1804 EDT FROM JAMES CONNOR TO JEFF ROTTON * * *

"As of 1720 the St. Lucie Station has terminated the Notification of Unusual Event for both units due to the downgrade of Hurricane Frances to a tropical storm warning for the local area. Both units are stable [Mode 3] and sustained no damage from the storm."

The licensee notified the NRC Resident Inspector, State and local emergency response organizations.

Notified R2DO (Munday), NRREO (Case), IRD (Wessman), DHS (Livingston), FEMA (Eaches).

To top of page
Power Reactor Event Number: 41007
Facility: TURKEY POINT
Region: 2 State: FL
Unit: [3] [4] [ ]
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: JIM RUSSELL
HQ OPS Officer: JOHN MacKINNON
Notification Date: 09/02/2004
Notification Time: 11:20 [ET]
Event Date: 09/02/2004
Event Time: 10:56 [EDT]
Last Update Date: 09/05/2004
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
JAY HENSON (R2)
TERRY REIS (NRR)
RICHARD WESSMAN (IRD)
COSTELLO (dhs)
KEN SWEETSER (FEMA)
ROSEMARY HOGAN (EDO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
3 N Y 100 Power Operation 100 Power Operation
4 N Y 100 Power Operation 100 Power Operation

Event Text

NOTIFICATION OF UNUSUAL EVENT DECLARED

Turkey point entered EAL 12A based on a confirmed hurricane warning from the State of Florida State Warning Point.

The Licensee will notify the NRC Resident Inspector.

* * * UPDATE FROM P. REIMERS TO W. GOTT AT 0611 ON 9/5/04 * * *

Hurricane Warning no longer in effect for the local area. Turkey Point no longer meets any Emergency Classification and is therefore deescalating from the Unusual Event.

Notified R2DO (Landis), NRREO (Case), IRD (Wessman), DHS (McKentry), FEMA (Kuzia).

To top of page
Power Reactor Event Number: 41017
Facility: FERMI
Region: 3 State: MI
Unit: [2] [ ] [ ]
RX Type: [2] GE-4
NRC Notified By: PATRICK FALLON
HQ OPS Officer: BILL GOTT
Notification Date: 09/04/2004
Notification Time: 02:05 [ET]
Event Date: 09/03/2004
Event Time: 23:45 [EDT]
Last Update Date: 09/04/2004
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
JULIO LARA (R3)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
2 A/R Y 100 Power Operation 0 Hot Shutdown

Event Text

RPS ACTUATION

"On September 3, 2004, at 2345, the Reactor Scrammed as the result of an [Automatic Voltage Regulator] AVR trip relay. AVR Channel A was not operating at the time due to an earlier fault (0541, 9/3/04). The AVR trip relay caused a Main Generator trip which caused a Main Turbine trip. The Main Turbine trip causes a direct Reactor SCRAM on Turbine Valve position. RPS functioned properly and all rods inserted. MSIVs remain open with Reactor Level maintained in the normal band of 173 to 214 inches. Reactor Pressure is being controlled with the Main Turbine Bypass valves at 600 to 1050 psig. Isolations occurred as expected for Reactor Level 3."

The Licensee notified the NRC Resident Inspector.

To top of page
Power Reactor Event Number: 41018
Facility: SAINT LUCIE
Region: 2 State: FL
Unit: [ ] [2] [ ]
RX Type: [1] CE,[2] CE
NRC Notified By: JOHN COLVIN
HQ OPS Officer: BILL GOTT
Notification Date: 09/04/2004
Notification Time: 05:40 [ET]
Event Date: 09/04/2004
Event Time: 01:56 [EDT]
Last Update Date: 09/04/2004
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
JOEL MUNDAY (R2)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
2 M/R Y 21 Power Operation 0 Hot Standby

Event Text

MANUAL REACTOR TRIP DUE TO STEAM GENERATOR LEVEL OSCILLATIONS

"While reducing power in response to expected severe weather conditions from hurricane Frances, the reactor was manually tripped from 21% reactor power. The reactor was tripped because of significant swings in the 'B' Steam Generator level caused by erratic operation of the 'B' Feedwater Regulating Valve (FRV). All Control Element Assemblies fully inserted. Decay heat is currently being removed by Main Feedwater using the low power FRV bypass valves and Steam Bypass Control System (SBCS), maintaining RCS temperature at 532 degrees Fahrenheit. The unit will be maintained in a shutdown condition until repairs to the FRV are completed and the severe weather from Hurricane Frances abates.

"All primary and secondary systems performed as expected with the exception of the SBCS. The SBCS consists of five pressure control valves, PCV-8801 through PCV-8805 with PCV-8801 a larger capacity valve and designed to open first. The remaining valves are designed to open in series with overlap through their operating ranges. PCV-8801 failed to open and PCV-8802, 8803, and 8804 did not appear to properly control RCS temperature. PCV-8805 was operated in manual to control [steam generator] pressure.

The Licensee notified the NRC Resident Inspector.

To top of page
Power Reactor Event Number: 41019
Facility: SAINT LUCIE
Region: 2 State: FL
Unit: [1] [2] [ ]
RX Type: [1] CE,[2] CE
NRC Notified By: JOHN COLVIN
HQ OPS Officer: BILL GOTT
Notification Date: 09/04/2004
Notification Time: 05:40 [ET]
Event Date: 09/04/2004
Event Time: 02:12 [EDT]
Last Update Date: 09/04/2004
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
JOEL MUNDAY (R2)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 42 Power Operation 42 Power Operation
2 N N 0 Hot Standby 0 Hot Standby

Event Text

LOSS OF COMMUNICATIONS - EMERGENCY RESPONSE DATA ACQUISITION DISPLAY SYSTEM

"At approximately 02:12 on September 4, 2004, the St. Lucie Emergency Response Data Acquisition Display System (ERDADS) failed. At the time of the failure the communication link to the NRC was in use due to the unusual event classification for an approaching hurricane. The ERDADS was restarted and functioning correctly as of approximately 03:40. The NRC link to Unit 1 has been reestablished. The NRC link to Unit 2 has not been restored as of this time. There appears to be a problem with the Unit 2 modem and efforts are underway to troubleshoot and repair the problem."

The Licensee notified the NRC Resident Inspector.

To top of page
Fuel Cycle Facility Event Number: 41020
Facility: PADUCAH GASEOUS DIFFUSION PLANT
RX Type: URANIUM ENRICHMENT FACILITY
Comments: 2 DEMOCRACY CENTER
                   6903 ROCKLEDGE DRIVE
                   BETHESDA, MD 20817 (301)564-3200
Region: 2
City: PADUCAH State: KY
County: McCRACKEN
License #: GDP-1
Agreement: Y
Docket: 0707001
NRC Notified By: ERIC WALKER
HQ OPS Officer: ARLON COSTA
Notification Date: 09/04/2004
Notification Time: 21:29 [ET]
Event Date: 09/04/2004
Event Time: 13:45 [CDT]
Last Update Date: 09/04/2004
Emergency Class: NON EMERGENCY
10 CFR Section:
RESPONSE-BULLETIN
Person (Organization):
KERRY LANDIS (R2)
SCOTT FLANDERS (NMSS)

Event Text

VIOLATION OF NUCLEAR CRITICALITY SAFETY CONTROL IN THE PROCESS BUILDING

"At 1345 [CDT], on 09-04-04 the Plant Shift Superintendent was notified of a violation of Nuclear Criticality Safety (NCS) control in the C-337 process building. During Inspection of the RCW (Recirculating Cooling Water) line to the RCW/ R114 Differential Pressure alarm switches (DP switches) for the C-337 #5 Low Speed P&E (Purge and Evacuation) Pump, Instrument Maintenance discovered that the instrument line boss was plugged. This condition rendered both Independent DP switches incapable of performing their intended safety, violating an SRI (Safety Related Item) in Nuclear Criticality Safety Evaluation (NCSE) 039. The SRI requires that both DP alarms are to be functional while the P&E pump is Isolated from the cascade process system. The purpose of the SRI is to alert an operator to take actions within a 28 hour timeframe to prevent high moisture R-114 from leaking into the process gas system. The DP alarms had likely been nonfunctional for more than 28 hours when discovered. Clarity of the Instrument line boss was subsequently re-established and both DP alarms were returned to service. The R-114 was sampled and determined to be dry (low moisture content) within 4 hours of discovery, thereby re-establishing double contingency.

"SAFETY SIGNIFICANCE OF EVENTS:
While the R-114 was demonstrated to be dry, both OF alarms relied on for double contingency were disabled without the knowledge of the operators.

"CONTROLLED PARAMETERS:
Double contingency Is maintained by Implementing two controls on moderation.

"NUCLEAR CRITICALITY SAFETY CONTROL(S) OR CONTROL SYSTEM(S) AND DESCRIPTION OF THE FAILURES OR DEFICIENCIES:
The first leg of double contingency is based on the DP switch alarming to alert the operator to take action to either verify the R-114 is dry or to isolate the RCW and remove the R-114 from the system in order to prevent water from leaking into the process gas system. This DP alarm was not maintained as functional. The DP alarm was put back In service and the R-114 was sampled and found to be dry. The SRI was not maintained and the control was violated but the process condition was maintained.

"The second leg of double contingency is based on the independent DP switch alarming to alert the operator to take action to either verify the R-114 is dry or to Isolate the RCW and remove the R-114 from the system in order to prevent water from leaking into the process gas system. The independent DP alarm was not maintained as functional. The independent DP alarm was put back in service and the R-114 was sampled and found to be dry. The SRI was not maintained and the control was violated but the process condition was maintained. This re-established double contingency.

"CORRECTIVE ACTIONS TO RESTORE SAFETY SYSTEMS AND WHEN EACH WAS IMPLEMENTED:
Both DP switches were returned to service and the R-114 was sampled and found to be dry within four hours time of discovery.

"PGDP Problem Report No. ATR-04-3602; PGDP Event Report No. PAD-2004-22

"The Senior NRC Resident Inspector has been notified of this event."

To top of page
Power Reactor Event Number: 41021
Facility: SAINT LUCIE
Region: 2 State: FL
Unit: [1] [2] [ ]
RX Type: [1] CE,[2] CE
NRC Notified By: JOHN COLVIN
HQ OPS Officer: BILL GOTT
Notification Date: 09/05/2004
Notification Time: 00:55 [ET]
Event Date: 09/04/2004
Event Time: 23:50 [EDT]
Last Update Date: 09/05/2004
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
KERRY LANDIS (R2)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 Hot Standby 0 Hot Standby
2 N N 0 Hot Standby 0 Hot Standby

Event Text

LOSS OF EMERGENCY COMMUNICATIONS DUE TO SEVERE WEATHER

"At approximately 2350 [ET] on September 4, 2004 the ENS [Emergency Notification System] direct connection with the NRC was lost and the Emergency Data Acquisition Display System (ERDADS) link between Unit 1 and the NRC was also lost. By 0020 hours the ENS connection had been recovered [using local Florida Power and Light telephones]. The ERDADS link to unit 2 was still out of service from earlier in the day due to a failure of the modem for this circuit. It appears upon initial troubleshooting that the unit 1 modem is also now failed. The ENS and ERDADS were in active use at the time of the loss for the Unusual Event condition resulting from the severe weather conditions associated with hurricane Frances. The modems are serviced by NRC contractors. Repairs will be pursued once weather conditions allow access to the site."

The licensee notified the NRC Resident Inspector.

To top of page
Power Reactor Event Number: 41022
Facility: CRYSTAL RIVER
Region: 2 State: FL
Unit: [3] [ ] [ ]
RX Type: [3] B&W-L-LP
NRC Notified By: RICK VIRGIN
HQ OPS Officer: JEFF ROTTON
Notification Date: 09/05/2004
Notification Time: 17:35 [ET]
Event Date: 09/05/2004
Event Time: 17:10 [EDT]
Last Update Date: 09/05/2004
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
SCOTT SHAFFER (R2)
RICHARD WESSMAN (IRD)
JOEL MUNDAY (R2)
MICHAEL CASE (NRR)
LIVINGSTON (DHS)
KUZIA (FEMA)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
3 N Y 97 Power Operation 97 Power Operation

Event Text

UNUSUAL EVENT DECLARED DUE TO HURRICANE WARNING

Crystal River declared a Notification of Unusual Event due to hurricane warning in effect for the plant and surrounding areas. All safety systems are operable.

The licensee notified the NRC Resident Inspector and the State emergency response organization.

Page Last Reviewed/Updated Friday, March 30, 2012
Friday, March 30, 2012