Event Notification Report for October 03, 2009
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/02/2009 - 10/03/2009
Power Reactor
Event Number: 45409
Facility: DRESDEN
Region: 3 State: IL
Unit: [] [] [3]
RX Type: [1] GE-1,[2] GE-3,[3] GE-3
NRC Notified By: FRANK WINTER
HQ OPS Officer: BILL HUFFMAN
Region: 3 State: IL
Unit: [] [] [3]
RX Type: [1] GE-1,[2] GE-3,[3] GE-3
NRC Notified By: FRANK WINTER
HQ OPS Officer: BILL HUFFMAN
Notification Date: 10/03/2009
Notification Time: 20:26 [ET]
Event Date: 10/03/2009
Event Time: 17:34 [CDT]
Last Update Date: 10/03/2009
Notification Time: 20:26 [ET]
Event Date: 10/03/2009
Event Time: 17:34 [CDT]
Last Update Date: 10/03/2009
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
ROBERT DALEY (R3DO)
ROBERT DALEY (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 3 | A/R | Y | 99 | Power Operation | 0 | Hot Shutdown |
AUTOMATIC REACTOR SCRAM FOLLOWING MSIV CLOSURE
"On 10/03/09 at 1734 CDT, Unit 3 scrammed due to a Group 1 MSIV closure. The cause of the event is being investigated. The 2/3 Emergency Diesel Generator also auto-started during the event. The cause of the auto start is also being investigated."
All rods fully inserted. The reactor is currently stable in Mode 3 with makeup water coming from the control rod drive system and decay heat removal from the isolation condenser. All systems functioned as required with the exception of the unexplained MSIV closure and the auto start of the 2/3 EDG. There was no impact on Unit 2 and the plant is in a normal post-scram electrical lineup. There was no need for the 2/3 EDG to auto-start and it did not load. Group 2 and 3 isolations were also received during the transient which is expected and normal. Reactor water level is being maintained between 8 and 48 inches and pressure between 800 and 1060 psi.
Investigation of the cause of the MSIV closure is in progress The licensee stated that there were no activities or surveillances in progress at the time that could have caused the MSIV closure.
The NRC Resident Inspector has been notified.
"On 10/03/09 at 1734 CDT, Unit 3 scrammed due to a Group 1 MSIV closure. The cause of the event is being investigated. The 2/3 Emergency Diesel Generator also auto-started during the event. The cause of the auto start is also being investigated."
All rods fully inserted. The reactor is currently stable in Mode 3 with makeup water coming from the control rod drive system and decay heat removal from the isolation condenser. All systems functioned as required with the exception of the unexplained MSIV closure and the auto start of the 2/3 EDG. There was no impact on Unit 2 and the plant is in a normal post-scram electrical lineup. There was no need for the 2/3 EDG to auto-start and it did not load. Group 2 and 3 isolations were also received during the transient which is expected and normal. Reactor water level is being maintained between 8 and 48 inches and pressure between 800 and 1060 psi.
Investigation of the cause of the MSIV closure is in progress The licensee stated that there were no activities or surveillances in progress at the time that could have caused the MSIV closure.
The NRC Resident Inspector has been notified.
General Information or Other
Event Number: 45410
Rep Org: ILLINOIS EMERGENCY MGMT. AGENCY
Licensee: TERRACON CONSULTANTS, INC.
Region: 3
City: CHICAGO State: IL
County:
License #: IL-01402-01
Agreement: Y
Docket:
NRC Notified By: PAUL EASTVOLD
HQ OPS Officer: STEVE SANDIN
Licensee: TERRACON CONSULTANTS, INC.
Region: 3
City: CHICAGO State: IL
County:
License #: IL-01402-01
Agreement: Y
Docket:
NRC Notified By: PAUL EASTVOLD
HQ OPS Officer: STEVE SANDIN
Notification Date: 10/04/2009
Notification Time: 02:23 [ET]
Event Date: 10/03/2009
Event Time: 14:00 [CDT]
Last Update Date: 10/05/2009
Notification Time: 02:23 [ET]
Event Date: 10/03/2009
Event Time: 14:00 [CDT]
Last Update Date: 10/05/2009
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
ROBERT DALEY (R3DO)
TERRENCE REIS (FSME)
ILTAB (via email)
ROBERT DALEY (R3DO)
TERRENCE REIS (FSME)
ILTAB (via email)
AGREEMENT STATE REPORT INVOLVING A STOLEN TROXLER MOISTURE DENSITY GAUGE
At approximately 1400 CDT on 10/3/09, a Terracon Consultants Ford Ranger pickup truck was stolen from the Powell Replacement Elementary School construction site in Chicago, IL. In the bed of the truck was a Troxler Model 3430 Moisture Density Gauge. These gauges typically contain two (2) radioactive sources; 8 millicuries Cs-137 and 40 millicuries Am-241:Be. The Chicago Police Department was informed of the theft and subsequently located the abandoned vehicle approximately two (2) miles away from the construction site at about 2300 CDT on 10/3. The vehicle had been ransacked and both the storage container and gauge were missing.
The Illinois Emergency Management Agency informed the Illinois State Police (ISP) Statewide Terrorism and Intelligence Center (STIC) and will followup with additional details as they become available.
* * * UPDATE FROM PAUL EASTVOLD TO JOE O'HARA AT 0934 ON 10/05/09 * * *
The serial number of the missing Troxler Model 3430 Moisture Density Gauge is S/N 32686. The state also confirmed the quantities of material in the gauge.
Notified R3DO(Daley), FSME(Villamar), and ILTAB via e-mail.
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. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf
At approximately 1400 CDT on 10/3/09, a Terracon Consultants Ford Ranger pickup truck was stolen from the Powell Replacement Elementary School construction site in Chicago, IL. In the bed of the truck was a Troxler Model 3430 Moisture Density Gauge. These gauges typically contain two (2) radioactive sources; 8 millicuries Cs-137 and 40 millicuries Am-241:Be. The Chicago Police Department was informed of the theft and subsequently located the abandoned vehicle approximately two (2) miles away from the construction site at about 2300 CDT on 10/3. The vehicle had been ransacked and both the storage container and gauge were missing.
The Illinois Emergency Management Agency informed the Illinois State Police (ISP) Statewide Terrorism and Intelligence Center (STIC) and will followup with additional details as they become available.
* * * UPDATE FROM PAUL EASTVOLD TO JOE O'HARA AT 0934 ON 10/05/09 * * *
The serial number of the missing Troxler Model 3430 Moisture Density Gauge is S/N 32686. The state also confirmed the quantities of material in the gauge.
Notified R3DO(Daley), FSME(Villamar), and ILTAB via e-mail.
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. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf