Event Notification Report for February 23, 2015
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/22/2015 - 02/23/2015
EVENT NUMBERS
50847508435084450845
Power Reactor
Event Number: 50847
Facility: LIMERICK
Region: 1 State: PA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: PAUL MARVEL
HQ OPS Officer: HOWIE CROUCH
Region: 1 State: PA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: PAUL MARVEL
HQ OPS Officer: HOWIE CROUCH
Notification Date: 02/24/2015
Notification Time: 01:02 [ET]
Event Date: 02/23/2015
Event Time: 21:40 [EST]
Last Update Date: 02/24/2015
Notification Time: 01:02 [ET]
Event Date: 02/23/2015
Event Time: 21:40 [EST]
Last Update Date: 02/24/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
JOHN ROGGE (R1DO)
JOHN ROGGE (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | A/R | Y | 100 | Power Operation | 0 | Hot Shutdown |
AUTOMATIC REACTOR SCRAM ON REACTOR HIGH PRESSURE SIGNAL
"At 2140 EST on 02/23/2015, Unit 1 reactor automatically scrammed on a valid reactor high pressure signal (1096#). The reactor high pressure signal was caused by the closure of the 1C inboard main steam isolation valve (MSIV), causing reactor pressure to rise, exceeding the reactor protection system (RPS) setpoint of 1096# pressure.
"The shutdown was normal and the plant is stable in Hot Shutdown with normal pressure control via the main steam bypass valves to the main condenser and normal level control using the feedwater system.
"The closure of the 1C inboard MSIV appears to have been caused by a loss of primary containment instrument gas (PCIG) pneumatic supply to the valve. Instrument air was aligned to the remaining MSIV's.
"Limerick Unit 1 will remain in Hot Shutdown until repairs can be made."
All rods inserted into the core during the scram. No relief or safety valves actuated during the transient. The electric grid is stable and supplying all plant loads. There was no affect on Unit 2.
The licensee notified the NRC Resident Inspector, Pennsylvania Emergency Management Agency, and Berks, Chester and Montgomery counties.
"At 2140 EST on 02/23/2015, Unit 1 reactor automatically scrammed on a valid reactor high pressure signal (1096#). The reactor high pressure signal was caused by the closure of the 1C inboard main steam isolation valve (MSIV), causing reactor pressure to rise, exceeding the reactor protection system (RPS) setpoint of 1096# pressure.
"The shutdown was normal and the plant is stable in Hot Shutdown with normal pressure control via the main steam bypass valves to the main condenser and normal level control using the feedwater system.
"The closure of the 1C inboard MSIV appears to have been caused by a loss of primary containment instrument gas (PCIG) pneumatic supply to the valve. Instrument air was aligned to the remaining MSIV's.
"Limerick Unit 1 will remain in Hot Shutdown until repairs can be made."
All rods inserted into the core during the scram. No relief or safety valves actuated during the transient. The electric grid is stable and supplying all plant loads. There was no affect on Unit 2.
The licensee notified the NRC Resident Inspector, Pennsylvania Emergency Management Agency, and Berks, Chester and Montgomery counties.
Agreement State
Event Number: 50843
Rep Org: TENNESSEE DIV OF RAD HEALTH
Licensee: TOXCO, INC.
Region: 1
City: OAK RIDGE State: TN
County:
License #: R-01037
Agreement: Y
Docket:
NRC Notified By: RUBEN CROSSLIN
HQ OPS Officer: JEFF HERRERA
Licensee: TOXCO, INC.
Region: 1
City: OAK RIDGE State: TN
County:
License #: R-01037
Agreement: Y
Docket:
NRC Notified By: RUBEN CROSSLIN
HQ OPS Officer: JEFF HERRERA
Notification Date: 02/23/2015
Notification Time: 16:34 [ET]
Event Date: 02/23/2015
Event Time: 07:30 [EST]
Last Update Date: 02/23/2015
Notification Time: 16:34 [ET]
Event Date: 02/23/2015
Event Time: 07:30 [EST]
Last Update Date: 02/23/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
JOHN ROGGE (R1DO)
NMSS_EVENTS_NOTIFIC (EMAI)
JOHN ROGGE (R1DO)
NMSS_EVENTS_NOTIFIC (EMAI)
AGREEMENT STATE REPORT - SPRINKLER PIPE BREAK OVERFLOW FROM CONTROLLED AREA
The following information was received from the Tennessee Division of Radiological Health via facsimile:
"[A] sprinkler pipe break in the Waste Water Treatment Plant of Building B [resulted] in water accumulation in [the] berms overflowing [the] berms and [flowing] from a controlled area [into a] storm water collection basin and runoff system."
The State is performing sampling to determine if there is any contamination of the water that passed through the controlled area.
TN Event Report: TN-15-023
The following information was received from the Tennessee Division of Radiological Health via facsimile:
"[A] sprinkler pipe break in the Waste Water Treatment Plant of Building B [resulted] in water accumulation in [the] berms overflowing [the] berms and [flowing] from a controlled area [into a] storm water collection basin and runoff system."
The State is performing sampling to determine if there is any contamination of the water that passed through the controlled area.
TN Event Report: TN-15-023
Agreement State
Event Number: 50844
Rep Org: WISCONSIN RADIATION PROTECTION
Licensee: TEAM INDUSTRIAL SERVICES
Region: 3
City: MILWAUKEE State: WI
County:
License #: 079-2005-01
Agreement: Y
Docket:
NRC Notified By: MEGAN SHOBER
HQ OPS Officer: STEVE SANDIN
Licensee: TEAM INDUSTRIAL SERVICES
Region: 3
City: MILWAUKEE State: WI
County:
License #: 079-2005-01
Agreement: Y
Docket:
NRC Notified By: MEGAN SHOBER
HQ OPS Officer: STEVE SANDIN
Notification Date: 02/23/2015
Notification Time: 16:59 [ET]
Event Date: 02/23/2015
Event Time: 00:00 [CST]
Last Update Date: 02/23/2015
Notification Time: 16:59 [ET]
Event Date: 02/23/2015
Event Time: 00:00 [CST]
Last Update Date: 02/23/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
ROBERT ORLIKOWSKI (R3DO)
NMSS_EVENTS_NOTIFIC (EMAI)
ROBERT ORLIKOWSKI (R3DO)
NMSS_EVENTS_NOTIFIC (EMAI)
AGREEMENT STATE REPORT - DAMAGED GUIDE TUBE ON RADIOGRAPHY CAMERA PREVENTING SOURCE RETRACTION
The following information was received from the State of Wisconsin via email:
"The Wisconsin Radiation Protection Section received notice from the licensee's Corporate Radiation Safety Officer (RSO) that a radiography crew working at a temporary jobsite on February 23, 2015 had a source become stuck during radiography operations. The crew was using an Ir-192 source in a QSA Global 880 Delta camera. While the source was cranked out in the collimator, a pipe fell on the guide tube and crimped the tube such that the radiographers were unable to retract the source. Two radiographers who are trained in source retrieval were dispatched to the jobsite. They cut out a one-inch section of the guide tube and were able to retract the source into the camera. As indicated by pocket dosimeters, radiation doses received by the radiographers were beneath regulatory limits.
"The Wisconsin Radiation Protection Section will follow up with the licensee after receiving its 30-day written report. Additional updates will be provided through NMED."
The licensee is sending the camera drive cable to the manufacturer for evaluation and has disposed of the damaged guide tube.
Wisconsin Event Report ID No.: WI150004
The following information was received from the State of Wisconsin via email:
"The Wisconsin Radiation Protection Section received notice from the licensee's Corporate Radiation Safety Officer (RSO) that a radiography crew working at a temporary jobsite on February 23, 2015 had a source become stuck during radiography operations. The crew was using an Ir-192 source in a QSA Global 880 Delta camera. While the source was cranked out in the collimator, a pipe fell on the guide tube and crimped the tube such that the radiographers were unable to retract the source. Two radiographers who are trained in source retrieval were dispatched to the jobsite. They cut out a one-inch section of the guide tube and were able to retract the source into the camera. As indicated by pocket dosimeters, radiation doses received by the radiographers were beneath regulatory limits.
"The Wisconsin Radiation Protection Section will follow up with the licensee after receiving its 30-day written report. Additional updates will be provided through NMED."
The licensee is sending the camera drive cable to the manufacturer for evaluation and has disposed of the damaged guide tube.
Wisconsin Event Report ID No.: WI150004
Non-Agreement State
Event Number: 50845
Rep Org: SAINT LOUIS UNIVERSITY
Licensee: SAINT LOUIS UNIVERSITY
Region: 3
City: SAINT LOUIS State: MO
County:
License #: 24-00196-07
Agreement: N
Docket:
NRC Notified By: MARK HAENCHEN
HQ OPS Officer: JEFF HERRERA
Licensee: SAINT LOUIS UNIVERSITY
Region: 3
City: SAINT LOUIS State: MO
County:
License #: 24-00196-07
Agreement: N
Docket:
NRC Notified By: MARK HAENCHEN
HQ OPS Officer: JEFF HERRERA
Notification Date: 02/23/2015
Notification Time: 17:04 [ET]
Event Date: 02/23/2015
Event Time: 12:00 [CST]
Last Update Date: 02/23/2015
Notification Time: 17:04 [ET]
Event Date: 02/23/2015
Event Time: 12:00 [CST]
Last Update Date: 02/23/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
35.3045(a)(1) - DOSE <> PRESCRIBED DOSAGE
10 CFR Section:
35.3045(a)(1) - DOSE <> PRESCRIBED DOSAGE
Person (Organization):
ROBERT ORLIKOWSKI (R3DO)
NMSS_EVENTS_NOTIFIC (EMAI)
ROBERT ORLIKOWSKI (R3DO)
NMSS_EVENTS_NOTIFIC (EMAI)
MEDICAL UNDER DOSE DUE TO EQUIPMENT MALFUNCTION
A patient was under dosed approximately 21.9% due to an equipment malfunction (SIR-Spheres). The isotope is Yttrium 90, the prescribed dose was 13.23 mCi and the delivered dose was 10.3 mCi. The prescribing physician and patient will be informed. The manufacturer will follow up and investigate the hardware issue and subsequent corrective actions.
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.
A patient was under dosed approximately 21.9% due to an equipment malfunction (SIR-Spheres). The isotope is Yttrium 90, the prescribed dose was 13.23 mCi and the delivered dose was 10.3 mCi. The prescribing physician and patient will be informed. The manufacturer will follow up and investigate the hardware issue and subsequent corrective actions.
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.