Event Notification Report for August 13, 2018
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
08/12/2018 - 08/13/2018
Power Reactor
Event Number: 53550
Facility: COMANCHE PEAK
Region: 4 State: TX
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BRIAN MITCHELL
HQ OPS Officer: THOMAS KENDZIA
Region: 4 State: TX
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BRIAN MITCHELL
HQ OPS Officer: THOMAS KENDZIA
Notification Date: 08/14/2018
Notification Time: 02:18 [ET]
Event Date: 08/13/2018
Event Time: 22:58 [CDT]
Last Update Date: 08/14/2018
Notification Time: 02:18 [ET]
Event Date: 08/13/2018
Event Time: 22:58 [CDT]
Last Update Date: 08/14/2018
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):
RICK DEESE (R4DO)
RICK DEESE (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | A/R | Y | 100 | Power Operation | 0 | Hot Standby |
AUTOMATIC REACTOR TRIP DUE TO GENERATOR LOCKOUT
"At 23:58 (Central Daylight Time) Unit 2 Reactor Tripped [automatic reactor trip] due to a Turbine Trip/ Generator Lock Out. All Auxiliary Feedwater Pumps started due to steam generator Lo Lo levels.
"Unit 2 is being maintained in Hot Standby (Mode 3) in accordance with Integrated Plant Operating Procedure IP0-007B. The Emergency Response Guideline Procedure Network has been exited. Decay heat is being rejected to the Main Condenser via Steam Dump Valves.
"The cause of the Generator Lockout is currently under investigation."
All control rods fully inserted in response to the automatic reactor trip.
The licensee notified the NRC resident.
"At 23:58 (Central Daylight Time) Unit 2 Reactor Tripped [automatic reactor trip] due to a Turbine Trip/ Generator Lock Out. All Auxiliary Feedwater Pumps started due to steam generator Lo Lo levels.
"Unit 2 is being maintained in Hot Standby (Mode 3) in accordance with Integrated Plant Operating Procedure IP0-007B. The Emergency Response Guideline Procedure Network has been exited. Decay heat is being rejected to the Main Condenser via Steam Dump Valves.
"The cause of the Generator Lockout is currently under investigation."
All control rods fully inserted in response to the automatic reactor trip.
The licensee notified the NRC resident.
Agreement State
Event Number: 53707
Rep Org: TENNESSEE DIV OF RAD HEALTH
Licensee: LUDLUM MEASUREMENTS
Region: 1
City: KNOXVILLE State: TN
County:
License #: R-47214-K21
Agreement: Y
Docket:
NRC Notified By: ANDREW HOLCOMB
HQ OPS Officer: HOWIE CROUCH
Licensee: LUDLUM MEASUREMENTS
Region: 1
City: KNOXVILLE State: TN
County:
License #: R-47214-K21
Agreement: Y
Docket:
NRC Notified By: ANDREW HOLCOMB
HQ OPS Officer: HOWIE CROUCH
Notification Date: 10/31/2018
Notification Time: 15:57 [ET]
Event Date: 08/13/2018
Event Time: 00:00 [EDT]
Last Update Date: 10/31/2018
Notification Time: 15:57 [ET]
Event Date: 08/13/2018
Event Time: 00:00 [EDT]
Last Update Date: 10/31/2018
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
10 CFR Section:
AGREEMENT STATE
Person (Organization):
DAN SCHROEDER (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB (EMAIL)
DAN SCHROEDER (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB (EMAIL)
AGREEMENT STATE REPORT - LOST AMERICIUM-241 SOURCE
The following information was obtained from the State of Tennessee via email:
"On 10/31/18, the Tennessee Division of Radiological Health was contacted via phone by Ludlum Measurements RSO regarding the loss of a licensed source. It appears the source was last seen on 8/10/18. The licensee realized the source was missing on 8/13/18. The licensee has been searching for the source from 8/13/18 to date. The whereabouts of the source are still unknown at this time.
"Isotope and activity: Am-241, 1.057911 microCi
Manufacturer: Eckert and Ziegler
Model and Source Serial #: 1637-72-2
"A follow-up report will be submitted within 30 days."
Tennessee State Event Report ID No.: TN-18-195
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
The following information was obtained from the State of Tennessee via email:
"On 10/31/18, the Tennessee Division of Radiological Health was contacted via phone by Ludlum Measurements RSO regarding the loss of a licensed source. It appears the source was last seen on 8/10/18. The licensee realized the source was missing on 8/13/18. The licensee has been searching for the source from 8/13/18 to date. The whereabouts of the source are still unknown at this time.
"Isotope and activity: Am-241, 1.057911 microCi
Manufacturer: Eckert and Ziegler
Model and Source Serial #: 1637-72-2
"A follow-up report will be submitted within 30 days."
Tennessee State Event Report ID No.: TN-18-195
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