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Event Notification Report for December 10, 2018

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
12/7/2018 - 12/10/2018

** EVENT NUMBERS **


53761 53766 53784

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Non-Agreement State Event Number: 53761
Rep Org: US STEEL CORPORATION GARY WORKS
Licensee: US STEEL CORPORATION GARY WORKS
Region: 3
City: GARY   State: IN
County:
License #: 13-26104-01
Agreement: N
Docket:
NRC Notified By: RYAN MCGHAN
HQ OPS Officer: ANDREW WAUGH
Notification Date: 11/29/2018
Notification Time: 17:18 [ET]
Event Date: 11/29/2018
Event Time: 00:00 [CST]
Last Update Date: 11/29/2018
Emergency Class: NON EMERGENCY
10 CFR Section:
30.50(b)(2) - SAFETY EQUIPMENT FAILURE
Person (Organization):
BILLY DICKSON (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

GAUGE STUCK SHUTTER

Maintenance technicians performing a lockout for maintenance manipulated a moisture gauge and the handle broke, rendering the shutter stuck in the open position. The normal position for the shutter is open. The maintenance was canceled and the area around the gauge was roped off. The vendor has been contacted to help the licensee repair the gauge. No exposure to personnel resulted from this event.

The gauge measures the moisture content in a bin containing metallurgical coke. The gauge is a Berthold containing a 300 mCi Am-241/Be source (serial number 048/10).

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Agreement State Event Number: 53766
Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES
Licensee: COOK CHILDRENS MEDICAL CENTER
Region: 4
City: FORT WORTH   State: TX
County:
License #: Licen-RAM-L04518
Agreement: Y
Docket:
NRC Notified By: ART TUCKER
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 12/02/2018
Notification Time: 17:52 [ET]
Event Date: 12/02/2018
Event Time: 00:00 [CST]
Last Update Date: 12/03/2018
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
JASON KOZAL (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

AGREEMENT STATE REPORT - PATIENT CONTAMINATION OF HOSPITAL ROOM

The following information was received via e-mail:

"On December 2, 2018, the Agency [Texas Department of State Health Services] was notified by the licensee's radiation safety officer (RSO) that they had admitted a patient at 2210 hours [CST] on December 1, 2018, complaining about a sickness. At 0000 hours on December 2, 2018, the patient gave the treatment nurse a piece of paper from a hospital in Houston, Texas, stating this individual had received a thyroid treatment with iodine-131 on November 29, 2018. At this time the patient was moved to an appropriate room. At this point the patient had been in four different rooms. The four rooms were surveyed for contamination. No contamination was found in the first room surveyed. In the second room, only paperwork was found to be contaminated and the paperwork was disposed of. The third room was a bathroom. Seven tiles in the bathroom were found to be contaminated and were removed. The fourth room was also a bathroom. In this room, the toilet was found to be contaminated. The RSO stated the first survey performed with a 14C rate meter with a pancake GM probe read greater than 20 millirem per hour (mR/hr) (maximum reading on the instrument, i.e. pegged high). A second survey performed with a second instrument indicated a dose rate of 60 mR/hr (on scale reading). The RSO was asked if the reading was in mR/hr or microrem per hour. The RSO confirmed the reading was 60 mR/hr at one foot from the top of the bowl. The RSO stated the room has been isolated and posted. The RSO stated all contaminated laundry had been removed from the areas and placed in the appropriate storage location. The RSO stated the second bathroom would be isolated for an extended period of time. The RSO had been at the facility since 0000 hours so he was headed home for rest. The RSO stated he would provide additional information on Monday December 3, 2018. Additional information will be provided as it is received in accordance with SA-300."

Texas Incident: 9641

* * * UPDATE ON 12/03/18 AT 1843 EST FROM KAREN BLANCHARD TO BETHANY CECERE * * *

The following update was received from the State of Texas via e-mail:

"The licensee's RSO informed the Agency that during its follow-up survey of the bathroom in which they had removed contaminated floor tiles, a single spot was found with readings of 5 mR/hr on the toilet near its water supply line. Therefore, access to this bathroom will also remain restricted. The patient was released from the emergency room late in the day on 12/02/2018. More information will be provided as it is received in accordance with SA-300."

Notified R4DO (Gaddy) and NMSS Event Notification Group (by email).

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!!!!! THIS EVENT HAS BEEN RETRACTED.THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor Event Number: 53784
Facility: BRAIDWOOD
Region: 3     State: IL
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: SAM KELLER
HQ OPS Officer: THOMAS KENDZIA
Notification Date: 12/08/2018
Notification Time: 06:12 [ET]
Event Date: 12/07/2018
Event Time: 00:00 [CST]
Last Update Date: 12/20/2018
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD
Person (Organization):
PATRICIA PELKE (R3DO)
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation
2 N Y 100 Power Operation 100 Power Operation

Event Text

INOPERABLE CONTROL ROOM ENVELOPE

"Braidwood Station was performing Control Room Envelope Testing. During testing the Station identified a failed acceptance criteria. The Control Room Envelope is a single train system and could constitute a Loss of Safety Function. If a single train system is inoperable per Technical Specifications (TS), it is Reportable as a Loss of Safety Function per 10 CFR 50.72(b)(3)(v) regardless of the system's continued ability to meet the accident analysis requirements.

"Both Units remain Mode 1, 100% power."

The licensee will be notifying the NRC Resident Inspector.

The acceptance criteria that failed was to maintain the control room pressure above the miscellaneous electrical equipment room pressure.

The station has realigned ventilation to normal, and has entered TS Limited Condition for Operation (LCO) 3.7.10 condition B, which requires the station to restore to operable the control room envelope within 90 days or shutdown the plant.

The station has also initiated contingency actions to verify SCBA (self contained breathing apparatus) are available and control room personnel are qualified to use SCBA.

* * * RETRACTION ON 12/20/18 AT 1714 EST FROM ANTHONY SIEBERT TO JEFFREY WHITED * * *

"On Wednesday, December 19, 2018, Braidwood Station concluded that the ENS notification 53784 could be retracted. It has been determined that the issue was not with the Control Room Envelope structure. Troubleshooting identified that the Unit 1 Upper Cable Spreading Room Area Supply Flow Control (OVC035Y) damper which supplies the Train A control room ventilation equipment room with air flow was not opening enough to supply the required flow. The subject duct work is shared by both A-train and B-train, and the flow through OVC035Y is controlled by a two-position actuator. The damper is less open when A-train is in operation (actuator energized) and more open when B-train is in operation (actuator de-energized). The only adjustments performed were to the actuator energized stroke limits which only affect the A train and thus a single train failure which could affect the safety function of both trains did not exist.

"Further calculations of unfiltered air inleakage into the Control Room Envelope (CRE) under a slightly negative differential pressure condition resulted in a calculated in leakage to the CRE of less than the maximum allowable unfiltered air inleakage for a radiological event of 436 scfm. The unfiltered air inleakage into the CRE assumed in the licensing basis analyses of Design Basis Accident consequences was never exceeded. Thus, TS Surveillance Requirement 3.7.10.4 continued to be met and entry into TS 3.7.10 Condition B was not required.

"The licensee has notified the NRC Resident Inspector."

Notified the R3DO (Stone).


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Friday, May 03, 2019