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Event Notification Report for May 25, 2020

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
5/22/2020 - 5/25/2020

** EVENT NUMBERS **


54711 54713 54715 54725

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Non-Agreement State Event Number: 54711
Rep Org: Curium Pharma
Licensee: Curium Pharma
Region: 3
City: Noblesville   State: IN
County:
License #: 13-35179-03
Agreement: N
Docket:
NRC Notified By: Mathew Trusner
HQ OPS Officer: Kerby Scales
Notification Date: 05/14/2020
Notification Time: 15:52 [ET]
Event Date: 05/13/2020
Event Time: 08:00 [EDT]
Last Update Date: 05/14/2020
Emergency Class: Non Emergency
10 CFR Section:
30.50(b)(4) - Fire/Explosion
Person (Organization):
ANN MARIE STONE (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
MICHAEL LAYTON (NMSS)

Event Text

FIRE INVOLVING LOSS OF INTEGRITY OF LICENSED CONTAINER

"At approximately 0800 EST on May 13, 2020, a thermal reaction occurred inside a production hot cell during a rubidium dissolution process. The pressure created by the reaction caused the back door of the hot cell to open approximately six inches for a few seconds. Curium employees performing the dissolution process immediately activated the hot cell fire suppression system to put out the fire, closed the hot cell door and placed the production area in a secured state. The open hot cell door released airborne radioactive material to a localized area inside the controlled and posted production area. Six employees that were in the vicinity of the production hot cell presented contamination. Contamination was also found on the floor immediately around the production hot cell.

"Curium's RSO isolated the affected area and used the data collected from personal surveys to preliminarily estimate the potential dose to the six employees and the total activity released from the hot cell. The initial dose estimates indicated that the employee with the highest exposure potentially received approximately 6.5 mrem DDE and <1 mrem CEDE. Urinalysis was performed to confirm the internal exposure and intake. At the time of this report, the urinalysis results are still pending. Analysis of air samples taken in the immediate affected area indicated the presence of Sr-82, Sr-85, Rb-83, Rb-84, and Rb-86. After the performance of contamination surveys, decontamination of affected employees and analysis of samples, Curium employees decontaminated the affected area. After decontamination procedures were completed, the affected area was released for normal operations within the same business day without the need for imposing additional radiological controls or restrictions. Radiological surveys confirmed that there was no detectable release of radioactive material to uncontrolled areas adjacent to the hot cell production area.

"Curium performed a preliminary root cause analysis on May 13, 2020. After completing a preliminary assessment of the dose and release of radioactive materials, Curium reviewed the notification requirements prescribed in 10 CFR 20.2203, 20.2204 and 30.50 and made a determination that neither the immediate nor 24-hour notification requirements were warranted. Curium performed a formal root cause analysis on May 14, 2020. Despite a belief that notification was not required, Curium communicated the incident in good faith to Mr. Jason Draper (NRC Region III) on May 14, 2020 at 1100 EST. After further discussions with Mr. Draper throughout May 14, 2020 and further review of the incident and conditions, Curium personnel made a decision to self-report the incident to the NRC Operations Center as specified under 10 CFR 30.50(b)(4).

"Curium is in the process of finalizing the root cause analysis, finalizing the dose estimates, completing confirmatory actions."

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Agreement State Event Number: 54713
Rep Org: MA RADIATION CONTROL PROGRAM
Licensee: Thermo Scientific Portable Analytical Instrument, Inc
Region: 1
City: Tewksbury   State: MA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Szymon Mudrewicz
HQ OPS Officer: Kerby Scales
Notification Date: 05/14/2020
Notification Time: 18:58 [ET]
Event Date: 05/14/2020
Event Time: 15:04 [EDT]
Last Update Date: 05/14/2020
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
CHRISTOPHER LALLY (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

AGREEMENT STATE REPORT - LEAKING SEALED SOURCE

The following information was received from the Commonwealth of Massachusetts via email:

"On 05/14/2020, the Massachusetts Radiation Control Program (hereafter, Agency) received a notification from Thermo Scientific Portable Analytical Instruments, Inc. (hereafter, Licensee ) of two Fe-55 leaking sealed sources. A total of 308 sealed sources (containing either Fe-55, Cd-109, or Am-241) were leak tested but only two exceeded reporting limits of 0.005 microCuries of removable contamination for each source. These sources were removed from customer devices for storage prior to disposal. The information of the two leaking sealed sources is as follows:

MAKE MODEL SERIAL INITIAL ACT. CURRENT ACT. DETECTED ACT.
QSA Global IEC.A1 OA959 20 milliCuries 0.65 milliCuries 0.0206 microCurie
QSA Global IEC.A1 OW788 20 milliCuries 0.72 milliCuries 0.0065 microCurie

"The sources have been stored in individual plastic bags, inside a lead container since December 2019. They were leak tested inside each bag and the work area was surveyed after the operation (no contamination of the work area was detected). The two sources will be transferred to a licensed waste broker in June. No radiological risk to workers was identified.

"The Agency considers this event to be open."

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Agreement State Event Number: 54715
Rep Org: ALABAMA RADIATION CONTROL
Licensee: Indorama Ventures Xylenes and PTA, LLC
Region: 1
City:   State: AL
County:
License #: 256
Agreement: Y
Docket:
NRC Notified By: Cason Coan
HQ OPS Officer: Andrew Waugh
Notification Date: 05/15/2020
Notification Time: 09:38 [ET]
Event Date: 05/14/2020
Event Time: 00:00 [CDT]
Last Update Date: 05/15/2020
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
CHRISTOPHER LALLY (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

AGREEMENT STATE REPORT - BROKEN SHUTTER HANDLE

The following information was received via email:

"The Alabama Dept. of Public Health Office of Radiation Control was notified on May 14, 2020, by a representative of Indorama Ventures Xylenes and PTA, LLC of a broken shutter handle on a fixed gauge. The licensee identified the device as an Ohmart SHRD-1-35, s/n 0018HB, with a Co-60 source of 3000 mCi, manufactured 10/2000. The licensee stated that there were no exposures to individuals as a result of this shutter failure, apparently no radioactive material was released outside the source housing. The device and source are in storage onsite, waiting for disposal."

Alabama Incident Report No.: 20-08

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Power Reactor Event Number: 54725
Facility: Grand Gulf
Region: 4     State: MS
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: Leroy Purdy
HQ OPS Officer: Bethany Cecere
Notification Date: 05/25/2020
Notification Time: 08:44 [ET]
Event Date: 05/25/2020
Event Time: 04:33 [CDT]
Last Update Date: 05/25/2020
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS Actuation - Critical
Person (Organization):
RYAN ALEXANDER (R4DO)
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 A/R Y 66 Power Operation 0 Hot Shutdown

Event Text

AUTOMATIC REACTOR SCRAM DUE TO MAIN TURBINE TRIP

"An [automatic] reactor SCRAM occurred at 0433 CDT, on 05/25/2020, from 66 percent core thermal power. The cause of the SCRAM was due to a Main Turbine Trip. The cause of the Turbine Trip is under investigation.

"All systems responded as designed. No loss of offsite power or [Emergency Safety Feature] (ESF) power occurred. No [Emergency Core Cooling System] (ECCS) or Emergency Diesel Generator initiations occurred. Main Steam Isolation valves remained open and no radioactive release occurred due to this event. The plant is stable in mode 3. This event is being reported under 10 CFR 50.72(b)(2)(iv)(B), as any event or condition that results in actuation of the Reactor Protection System (RPS), when the reactor is critical.

"The NRC Resident Inspector has been notified."

Decay heat removal is through the Feedwater and Condensate System.


Page Last Reviewed/Updated Friday, June 19, 2020
Friday, June 19, 2020