| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
08/11/2017 - 08/14/2017 ** EVENT NUMBERS ** |
 | Agreement State | Event Number: 52885 | Rep Org: LOUISIANA RADIATION PROTECTION DIV
Licensee: EXXONMOBIL BATON ROUGE PLASTICS PLANT
Region: 4
City: BATON ROUGE State: LA
County:
License #: LA-2349-L01
Agreement: Y
Docket:
NRC Notified By: RUSSELL CLARK
HQ OPS Officer: DONALD NORWOOD | Notification Date: 08/03/2017
Notification Time: 14:47 [ET]
Event Date: 08/02/2017
Event Time: 14:00 [CDT]
Last Update Date: 08/03/2017 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
RAY AZUA (R4DO)
NMSS_EVENTS_NOTIFICA (EMAI)
| Event Text AGREEMENT STATE REPORT - FIXED GAUGE SOURCE STUCK IN DIP TUBE
The following information was received via E-mail:
"On August 2, 2017, at approximately 1400 CDT, [the] Radiation Safety Officer of ExxonMobil notified the Louisiana Department of Environmental Quality (LDEQ) of an equipment malfunction. A Model LB300 IS Berthold level/density gauge installed on G-Line High Pressure Separator Vessel, V5300 and possessing seven nominally 50 mCi Co-60 sealed sources, was undergoing a routine annual shutter test in which the sealed sources were being pulled upwards in their dip tubes via connecting cables to the top of the source holder. The source in dip tube No.1 became stuck in its dip tube and could not be pulled upward further. The source in dip tube No.1 could not be successfully returned to its normal operating position. The sources in dip tubes Nos. 3, 4, and 5 were successfully pulled up to the top of the source holder. According to [the RSO], the sources in dip tubes Nos. 2 and 6 had already become stuck in their dip tubes and not returned to the source holder during the previous shutter test conducted during June 2016, and that now there are three sources, source serial numbers, 1369-08-02, 1370-08-02 and 1374-08-02, respectively stuck within their dip tubes Nos. 1, 2, and 6. The licensee placed a service call to [a] Berthold contract service engineer on August 2, 2017, but was unable to contact him and left a voicemail message. [The Berthold contract service engineer] will conduct a maintenance inspection of the gauge as soon as possible. The above sources have gone through approximately 3.2 half-lives since installation and so the true activity of the above Co-60 sources is approximately 5.4 mCi. This is not an emergency situation. ExxonMobil Radiation Safety Office staff is monitoring the vessel condition and have the situation under control. There is not a potential for off-site exposure."
Louisiana Event Report ID No.: LA170011 |
| Agreement State | Event Number: 52887 | Rep Org: ILLINOIS EMERGENCY MGMT. AGENCY
Licensee: MIDWEST REGIONAL MEDICAL CENTER
Region: 3
City: ZION State: IL
County:
License #: IL-01104-01
Agreement: Y
Docket:
NRC Notified By: GARY FORSEE
HQ OPS Officer: DONALD NORWOOD | Notification Date: 08/04/2017
Notification Time: 17:24 [ET]
Event Date: 08/04/2017
Event Time: [CDT]
Last Update Date: 08/04/2017 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
RICHARD SKOKOWSKI (R3DO)
NMSS_EVENTS_NOTIFICA (EMAI)
| Event Text AGREEMENT STATE REPORT - UNDERDOSE TO PATIENT
The following information was received via E-mail:
"The licensee's RSO reported an event that resulted in an underdose to the patient. At 1215 CDT on August 4, 2017, licensee staff were administering a 40.4 mCi dose of Y-90 microspheres to the patient. The preliminary finding is that the patient took a deep inspiration which moved the base catheter and possibly changed its position or created a kink in the catheter. The first 3-4 aliquots were delivered before the plunger met resistance and the procedure aborted. The licensee estimates that 21.5 mCi was delivered (underdose 46.9%). They estimate that the patient received 50+ Gy to the intended area and there were no microspheres to an unintended target. Written report forthcoming."
Illinois Item Number: IL177016
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. |
| Power Reactor | Event Number: 52898 | Facility: COMANCHE PEAK
Region: 4 State: TX
Unit: [ ] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JONATHAN BAIN
HQ OPS Officer: JEFF HERRERA | Notification Date: 08/11/2017
Notification Time: 16:12 [ET]
Event Date: 08/11/2017
Event Time: 11:24 [CDT]
Last Update Date: 08/11/2017 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
| Person (Organization):
HEATHER GEPFORD (R4DO)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 2 | N | Y | 10 | Power Operation | 3 | Startup | Event Text COMANCHE PEAK AUTOMATIC TURBINE TRIP FROM 10 PERCENT POWER
"At 1124 CDT on 11 August 2017, CPNPP [Comanche Peak Nuclear Power Plant] Unit 2 experienced an automatic turbine trip and trip of both main feedwater pumps on high steam generator water level (P-14, 81.5 percent level) in steam generator 2-02. Following the turbine trip, the auxiliary feedwater system actuated as required. The plant was stabilized at 2-3 percent reactor power with auxiliary feedwater feeding all steam generators with all levels within their normal bands.
"The cause of the high steam generator level appears to be a mechanical malfunction of steam generator 2-02 flow control valve bypass valve 2-LV-2163 (SG 2-02 FW BYP CTRL VLV) to close when demanded. Troubleshooting and repair of 2-LV-2163 is in progress.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) for an actuation of auxiliary feedwater.
"The NRC Resident Inspector has been notified." | |