Event Notification Report for February 01, 2006
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/31/2006 - 02/01/2006
EVENT NUMBERS
42299423004230143135
Power Reactor
Event Number: 42299
Facility: DUANE ARNOLD
Region: 3 State: IA
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: WILLIAM CLARK
HQ OPS Officer: MARK ABRAMOVITZ
Region: 3 State: IA
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: WILLIAM CLARK
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 02/01/2006
Notification Time: 21:33 [ET]
Event Date: 02/01/2006
Event Time: 18:55 [CST]
Last Update Date: 02/02/2006
Notification Time: 21:33 [ET]
Event Date: 02/01/2006
Event Time: 18:55 [CST]
Last Update Date: 02/02/2006
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED 50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED 50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
KENNETH RIEMER (R3)
MARK SATORIUS (R3)
MEL LEACH (IRD)
TOM MARTIN (NRR)
GOMEZ-RIOS (DHS)
KENNETH RIEMER (R3)
MARK SATORIUS (R3)
MEL LEACH (IRD)
TOM MARTIN (NRR)
GOMEZ-RIOS (DHS)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 96 | Power Operation | 96 | Power Operation |
LOSS OF SITE EXTERNAL COMMUNICATIONS
At approximately 18:55 CST, the site lost external communications. At 1937 CST, Duane Arnold declared an Unusual Event due to loss of communications to most offsite agencies. Communications with the county were operating via microwave however, other external communications were not working. The site believed that the loss was due to a "single microwave tower malfunction." The county was contacted directly and other offsite communications (including this event) were being made using a cell phone. The Headquarters Operation Officer was able to contact the Control Room using a commercial phone number. The plant is currently in day 2 of a 14 day RCIC LCO.
At 22:35 EST, the site verified that they now have intermittent communications using commercial phone lines. The licensee will not exit the Unusual Event until they have restored communications and know the reason for losing communications.
The NRC Resident Inspector is at the site.
* * * UPDATE FROM GORDON TO KNOKE AT 02:23 EST ON 02/02/06 * * *
Duane Arnold terminated the Unusual Event at 01:00 CST. The licensee restored site communications by correcting the microwave tower malfunction. At a later time the licensee called to say the ENS line became operable at 03:32 EST.
The licensee notified the NRC Resident Inspector. Notified R3DO (Riemer), NRR EO (Martin), IRD MOC (Leach), FEMA (Dunker), DHS (Christenson).
At approximately 18:55 CST, the site lost external communications. At 1937 CST, Duane Arnold declared an Unusual Event due to loss of communications to most offsite agencies. Communications with the county were operating via microwave however, other external communications were not working. The site believed that the loss was due to a "single microwave tower malfunction." The county was contacted directly and other offsite communications (including this event) were being made using a cell phone. The Headquarters Operation Officer was able to contact the Control Room using a commercial phone number. The plant is currently in day 2 of a 14 day RCIC LCO.
At 22:35 EST, the site verified that they now have intermittent communications using commercial phone lines. The licensee will not exit the Unusual Event until they have restored communications and know the reason for losing communications.
The NRC Resident Inspector is at the site.
* * * UPDATE FROM GORDON TO KNOKE AT 02:23 EST ON 02/02/06 * * *
Duane Arnold terminated the Unusual Event at 01:00 CST. The licensee restored site communications by correcting the microwave tower malfunction. At a later time the licensee called to say the ENS line became operable at 03:32 EST.
The licensee notified the NRC Resident Inspector. Notified R3DO (Riemer), NRR EO (Martin), IRD MOC (Leach), FEMA (Dunker), DHS (Christenson).
Power Reactor
Event Number: 42300
Facility: DRESDEN
Region: 3 State: IL
Unit: [] [2] []
RX Type: [1] GE-1,[2] GE-3,[3] GE-3
NRC Notified By: DENNIS FRANCIS
HQ OPS Officer: JEFF ROTTON
Region: 3 State: IL
Unit: [] [2] []
RX Type: [1] GE-1,[2] GE-3,[3] GE-3
NRC Notified By: DENNIS FRANCIS
HQ OPS Officer: JEFF ROTTON
Notification Date: 02/02/2006
Notification Time: 01:43 [ET]
Event Date: 02/01/2006
Event Time: 19:43 [CST]
Last Update Date: 02/02/2006
Notification Time: 01:43 [ET]
Event Date: 02/01/2006
Event Time: 19:43 [CST]
Last Update Date: 02/02/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
KENNETH RIEMER (R3)
KENNETH RIEMER (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 98 | Power Operation | 98 | Power Operation |
INOPERABLE ISOLATION CONDENSER
"While performing DIS 1300-02, Unit 2 ISO COND Steam/Condensate Line High Flow Calibration, workers attempted to valve in DPIS 2-1349-8, U2 Isolation Condenser Return Line Hi Flow. While opening the low isolation valve the technician noticed a vibration in the sensing line. He proceeded to close the equalizer and open the high isolation. As he opened the high side isolation the DPIS indication started to ramp high. As the indication ramped above about 9 inches the technician closed the high side isolation valve.
"The Isolation Condenser has been isolated to comply with Technical Specification entered TS 3.3.6.1 C.1 and F.1, Primary Containment Isolation Instrumentation and TS 3.5.3. A.1 & A.2, Isolation Condenser. A prompt investigation has been initiated to determine the cause. A troubleshooting plan is being developed.
"Per Tech Spec Bases Section 3.5.3, Applicable Safety Analysis, credit is taken for the Isolation Condenser in the loss of Feedwater Transient Analysis. Therefore the event is reportable under 10CFR 50.72.(b)(3)(v)(D)."
The licensee notified the NRC Resident Inspector.
"While performing DIS 1300-02, Unit 2 ISO COND Steam/Condensate Line High Flow Calibration, workers attempted to valve in DPIS 2-1349-8, U2 Isolation Condenser Return Line Hi Flow. While opening the low isolation valve the technician noticed a vibration in the sensing line. He proceeded to close the equalizer and open the high isolation. As he opened the high side isolation the DPIS indication started to ramp high. As the indication ramped above about 9 inches the technician closed the high side isolation valve.
"The Isolation Condenser has been isolated to comply with Technical Specification entered TS 3.3.6.1 C.1 and F.1, Primary Containment Isolation Instrumentation and TS 3.5.3. A.1 & A.2, Isolation Condenser. A prompt investigation has been initiated to determine the cause. A troubleshooting plan is being developed.
"Per Tech Spec Bases Section 3.5.3, Applicable Safety Analysis, credit is taken for the Isolation Condenser in the loss of Feedwater Transient Analysis. Therefore the event is reportable under 10CFR 50.72.(b)(3)(v)(D)."
The licensee notified the NRC Resident Inspector.
Power Reactor
Event Number: 42301
Facility: MONTICELLO
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: RANDY SANDS
HQ OPS Officer: JOHN KNOKE
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: RANDY SANDS
HQ OPS Officer: JOHN KNOKE
Notification Date: 02/02/2006
Notification Time: 04:51 [ET]
Event Date: 02/01/2006
Event Time: 23:00 [CST]
Last Update Date: 02/02/2006
Notification Time: 04:51 [ET]
Event Date: 02/01/2006
Event Time: 23:00 [CST]
Last Update Date: 02/02/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
KENNETH RIEMER (R3)
KENNETH RIEMER (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
EMERGENCY FILTRATION TRAIN FAN DECLARED INOPERABLE
Train "A" of the Emergency Filtration Train (EFT) Unit, which services the control room ventilation system, tripped off line due to a low flow condition. The cause was determined to be a rip in the rubber boot at the suction of the fan, thus causing an automatic trip of the EFT system from a low flow condition through the filter where flow is sensed. Both the "A" and "B" trains were declared inoperable due to the amount of leakage the "B" EFT was having through the ripped boot in the "A" EFT, and the condition found on "B" EFT rubber boot. Upon further evaluation of the "B" EFT boot condition, the "B" train was declared operable at 03:02 CST on 02/02/06. The "A" EFT will remain in a 7 day LCO until the rubber boot is replaced. The 8 hour notification was issued due to both EFT Units being declared inoperable.
The licensee notified the NRC Resident Inspector.
Train "A" of the Emergency Filtration Train (EFT) Unit, which services the control room ventilation system, tripped off line due to a low flow condition. The cause was determined to be a rip in the rubber boot at the suction of the fan, thus causing an automatic trip of the EFT system from a low flow condition through the filter where flow is sensed. Both the "A" and "B" trains were declared inoperable due to the amount of leakage the "B" EFT was having through the ripped boot in the "A" EFT, and the condition found on "B" EFT rubber boot. Upon further evaluation of the "B" EFT boot condition, the "B" train was declared operable at 03:02 CST on 02/02/06. The "A" EFT will remain in a 7 day LCO until the rubber boot is replaced. The 8 hour notification was issued due to both EFT Units being declared inoperable.
The licensee notified the NRC Resident Inspector.
General Information or Other
Event Number: 43135
Rep Org: FLORIDA BUREAU OF RADIATION CONTROL
Licensee: FLORIDA INTERNATIONAL UNIVERSITY
Region: 1
City: MIAMI State: FL
County:
License #: 3669-1
Agreement: Y
Docket:
NRC Notified By: CHARLES ADAMS
HQ OPS Officer: JOHN MacKINNON
Licensee: FLORIDA INTERNATIONAL UNIVERSITY
Region: 1
City: MIAMI State: FL
County:
License #: 3669-1
Agreement: Y
Docket:
NRC Notified By: CHARLES ADAMS
HQ OPS Officer: JOHN MacKINNON
Notification Date: 01/30/2007
Notification Time: 16:12 [ET]
Event Date: 02/01/2006
Event Time: 12:00 [EST]
Last Update Date: 01/30/2007
Notification Time: 16:12 [ET]
Event Date: 02/01/2006
Event Time: 12:00 [EST]
Last Update Date: 01/30/2007
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
CHRISTOPHER CAHILL (R1)
LAWRENCE KOKAJKO (NMSS)
ILTAB (e-mailed)
CHRISTOPHER CAHILL (R1)
LAWRENCE KOKAJKO (NMSS)
ILTAB (e-mailed)
FLORIDA AGREEMENT STATE REPORT - LOSS GAS CHROMATOGRAPH
Following Agreement State Report was received via e-mail
"Licensee reported loss of gauge. Last seen during 2/06 inventory. Roof over storage area was replaced in 03/06 and all instruments/equipment had to be moved. Repairs were complete in 5/06. The gauge was noted missing in 8/06 inventory. Licensee reports an extensive search was conducted for several months. The loss was reported to this office 1/30/07. Licensee will submit a written report. Florida is investigating."
Device Type: Gas Chromatograph
Manufacturer: Hewlett-Packard
Model Number: 5890
Serial Number: SN L4479
Isotope(s): Ni-63
Activity: 15.8 millicuries in 1988 (13.2 millicuries now)
Material Form: Sealed Source
Incident Category: Loss of Control - Lost, Abandoned, or Stolen Materials
Location Classification: Controlled Area
THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks.
Following Agreement State Report was received via e-mail
"Licensee reported loss of gauge. Last seen during 2/06 inventory. Roof over storage area was replaced in 03/06 and all instruments/equipment had to be moved. Repairs were complete in 5/06. The gauge was noted missing in 8/06 inventory. Licensee reports an extensive search was conducted for several months. The loss was reported to this office 1/30/07. Licensee will submit a written report. Florida is investigating."
Device Type: Gas Chromatograph
Manufacturer: Hewlett-Packard
Model Number: 5890
Serial Number: SN L4479
Isotope(s): Ni-63
Activity: 15.8 millicuries in 1988 (13.2 millicuries now)
Material Form: Sealed Source
Incident Category: Loss of Control - Lost, Abandoned, or Stolen Materials
Location Classification: Controlled Area
THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks.