Event Notification Report for September 10, 2016
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/09/2016 - 09/10/2016
Power Reactor
Event Number: 52232
Facility: DAVIS BESSE
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] B&W-R-LP
NRC Notified By: TOM COBBLEDICK
HQ OPS Officer: JEFF HERRERA
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] B&W-R-LP
NRC Notified By: TOM COBBLEDICK
HQ OPS Officer: JEFF HERRERA
Notification Date: 09/10/2016
Notification Time: 07:23 [ET]
Event Date: 09/10/2016
Event Time: 03:43 [EDT]
Last Update Date: 09/10/2016
Notification Time: 07:23 [ET]
Event Date: 09/10/2016
Event Time: 03:43 [EDT]
Last Update Date: 09/10/2016
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):
KARLA STOEDTER (R3DO)
KARLA STOEDTER (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | A/R | Y | 100 | Power Operation | 0 | Hot Standby |
AUTOMATIC UNIT TRIP DUE TO MAIN GENERATOR LOCK-OUT
"At 0343 EDT, with the unit operating at approximately 100% full power, an automatic reactor trip occurred due to a Main Generator lock-out. The cause of the generator lock-out is being investigated at this time. All control rods fully inserted. Post trip, the Steam Feedwater Rupture Control System was actuated due to high Steam Generator 1 level. The cause of the high Steam Generator 1 level is being investigated at this time.
"The unit is currently in Mode 3 (Hot Standby) and stable, at approximately 550 degrees F and 2155 psig. Steam is being discharged through the Atmospheric Vent Valves for decay heat removal. There is no known primary to secondary leakage, and all safety systems functioned as expected.
"The NRC Resident Inspector has been notified of the event."
The licensee notified the State of Ohio, Ottawa and Lucas County.
"At 0343 EDT, with the unit operating at approximately 100% full power, an automatic reactor trip occurred due to a Main Generator lock-out. The cause of the generator lock-out is being investigated at this time. All control rods fully inserted. Post trip, the Steam Feedwater Rupture Control System was actuated due to high Steam Generator 1 level. The cause of the high Steam Generator 1 level is being investigated at this time.
"The unit is currently in Mode 3 (Hot Standby) and stable, at approximately 550 degrees F and 2155 psig. Steam is being discharged through the Atmospheric Vent Valves for decay heat removal. There is no known primary to secondary leakage, and all safety systems functioned as expected.
"The NRC Resident Inspector has been notified of the event."
The licensee notified the State of Ohio, Ottawa and Lucas County.
Non-Agreement State
Event Number: 52233
Rep Org: THRASHER ENGINEERING, INC.
Licensee: THRASHER ENGINEERING, INC.
Region: 1
City: BRIDGEPORT State: WV
County:
License #: 47-23065-01
Agreement: N
Docket: -
NRC Notified By: RANDY MEANS
HQ OPS Officer: STEVE SANDIN
Licensee: THRASHER ENGINEERING, INC.
Region: 1
City: BRIDGEPORT State: WV
County:
License #: 47-23065-01
Agreement: N
Docket: -
NRC Notified By: RANDY MEANS
HQ OPS Officer: STEVE SANDIN
Notification Date: 09/10/2016
Notification Time: 15:45 [ET]
Event Date: 09/10/2016
Event Time: 00:00 [EDT]
Last Update Date: 09/10/2016
Notification Time: 15:45 [ET]
Event Date: 09/10/2016
Event Time: 00:00 [EDT]
Last Update Date: 09/10/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
Person (Organization):
MEL GRAY (R1DO)
NMSS_EVENTS_NOTIFIC (EMAI)
MEL GRAY (R1DO)
NMSS_EVENTS_NOTIFIC (EMAI)
THEFT OF TROXLER MOISTURE-DENSITY GAUGE
Sometime between midnight and 2:30 AM on 09/10/16, a Troxler Moisture-Density Gauge Model 3440, S/N 69105, was stolen from the back of a pickup truck parked at the Sleep Inn in Beaver, WV. The Troxler Model 3440 typically contains two sources; 8 mCi Cs-137 and 40 mCi Am-241/Be. Surveillance video provided to the LLEA (Raleigh Police Department) shows an individual parking a white pickup truck next to the truck containing the gauge and subsequently transferring the gauge box to the white pickup. The licensee confirmed that the gauge was locked and properly secured prior to the theft.
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
Sometime between midnight and 2:30 AM on 09/10/16, a Troxler Moisture-Density Gauge Model 3440, S/N 69105, was stolen from the back of a pickup truck parked at the Sleep Inn in Beaver, WV. The Troxler Model 3440 typically contains two sources; 8 mCi Cs-137 and 40 mCi Am-241/Be. Surveillance video provided to the LLEA (Raleigh Police Department) shows an individual parking a white pickup truck next to the truck containing the gauge and subsequently transferring the gauge box to the white pickup. The licensee confirmed that the gauge was locked and properly secured prior to the theft.
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