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Event Notification Report for August 24, 2017

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
08/23/2017 - 08/24/2017

** EVENT NUMBERS **


52906 52907 52919 52921

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Agreement State Event Number: 52906
Rep Org: SC DIV OF HEALTH & ENV CONTROL
Licensee: ISOMEDIX OPERATIONS
Region: 1
City: SPARTANBURG State: SC
County:
License #: 267
Agreement: Y
Docket:
NRC Notified By: JAMES PETERSON
HQ OPS Officer: VINCE KLCO
Notification Date: 08/15/2017
Notification Time: 14:24 [ET]
Event Date: 08/14/2017
Event Time: [EDT]
Last Update Date: 08/15/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
HAROLD GRAY (R1DO)
NMSS_EVENTS_NOTIFICA (EMAI)

Event Text

AGREEMENT STATE REPORT - IRRADIATOR SOURCE RACKS INOPERABLE

Following a panoramic irradiator two day shutdown, a restart with three source racks commenced. Air pressure was applied to raise the source racks. During the restart, two source racks (racks 1 and 3) did not descend into the irradiator pool as designed. During an investigation, two release valves associated with the two source racks did not operate properly. Operators manually released air pressure and all source racks descended into the irradiator pool. The deficient release valves were replaced and the source racks were satisfactorily retested. The source racks all properly descended into the pool. The time the source racks were inoperable for approximately 1.5 hours.

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Agreement State Event Number: 52907
Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: CRAWFORD AND ASSOCIATES, INC
Region: 4
City: MODESTO State: CA
County:
License #: 7971-50
Agreement: Y
Docket:
NRC Notified By: KAMANI HEWADIKARAM
HQ OPS Officer: VINCE KLCO
Notification Date: 08/15/2017
Notification Time: 16:52 [ET]
Event Date: 08/14/2017
Event Time: [PDT]
Last Update Date: 08/15/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
THOMAS FARNHOLTZ (R4DO)
NMSS_EVENTS_NOTIFICA (EMAI)

Event Text

AGREEMENT STATE REPORT - DAMAGED MOISTURE DENSITY GAUGE

The following information was provided by the State of California via email:

"On 08/14/17, RHB [California Radiation Health Branch] received an incident report from Office of Emergency Services regarding a damaged moisture density gauge. A CPN gauge, Model MC-3, S/N M380108935, containing 10 mCi of Cs-137 and 50 mCi of Am-241 was run over by a heavy construction equipment at a job site in the city of Santa Clara, CA. The top of the gauge housing was damaged with a broken rod, however, the user managed to retrieve the source back into shielded position. The damaged gauge was placed in the transport case and taken to the licensee's facility for disposal. Fire department was at the incident site, performed surveys using a survey meter (no survey meter information available) and the readings did not indicate any contamination. According to the gauge user, Fire Department readings indicated 500 uR/hr at the damaged gauge and 6 uR/hr at 15 feet from the gauge. The gauge will be transported to CPN for leak testing and disposal on 08/15/17. RHB will be following up on this incident."

California 5010 Number: 081417

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Power Reactor Event Number: 52919
Facility: BYRON
Region: 3 State: IL
Unit: [1] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: ED SMITH
HQ OPS Officer: BETHANY CECERE
Notification Date: 08/21/2017
Notification Time: 05:30 [ET]
Event Date: 08/20/2017
Event Time: 21:08 [CDT]
Last Update Date: 08/23/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
AARON McCRAW (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

LOSS OF EMERGENCY ASSESSMENT CAPABILITY DUE TO NON-FUNCTIONAL TSC VENTILATION

"On August 20, 2017 at 2108 hours CDT, Byron Station Technical Support Center (TSC) ventilation system supply fan (0VV23C) was identified as non-functional. This failure affects the ability of the TSC ventilation system to maintain adequate radiological habitability in the event of an emergency with an airborne radiological release. All other capabilities of the TSC are unaffected by this emergent condition. Currently troubleshooting/investigation is being performed. This condition is considered a major loss of emergency assessment capability and is reportable under 10CFR50.72(b)(3)(xiii). If an emergency is declared requiring TSC activation during this period, the TSC will be staffed and activated using existing emergency planning procedures. If the TSC becomes uninhabitable, the Station Emergency Director will relocate the TSC staff to an alternate TSC location in accordance with applicable procedures.

"This notification is being made in accordance with 10CFR50.72(b)(3)(xiii) due to the potential loss of an emergency response facility because of the unavailability of the ventilation system. An update will be provided once the TSC ventilation has been restored to normal operation.

"The NRC Resident Inspector has been notified."

* * * UPDATE FROM JOHN CONROY TO HOWIE CROUCH AT 1504 EDT ON 8/23/17 * * *

TSC ventilation was returned to service at 1150 CDT on 8/23/17.

The licensee has notified the NRC Resident Inspector. Notified R3DO (Dickson).

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Power Reactor Event Number: 52921
Facility: GRAND GULF
Region: 4 State: MS
Unit: [1] [ ] [ ]
RX Type: [1] GE-6
NRC Notified By: LEROY PURDY
HQ OPS Officer: DONALD NORWOOD
Notification Date: 08/23/2017
Notification Time: 10:51 [ET]
Event Date: 08/23/2017
Event Time: 03:40 [CDT]
Last Update Date: 08/23/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
THOMAS FARNHOLTZ (R4DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 65 Power Operation 65 Power Operation

Event Text

LOSS OF OFFSITE TELEPHONE LINES

"At approximately 0340 CDT on Wednesday, August 23, 2017, Grand Gulf Nuclear Station was notified by the Entergy System Dispatcher that the NRC had called them and told them that the NRC could not contact Grand Gulf on the Emergency Notification System (ENS) line nor commercial telephone. Control Room personnel immediately tested several offsite lines including the NRC ENS line and found the lines were non-functional.

"Offsite prompt Public Warning Sirens were available at all times. State and Local notification capability was available via UHF radio communication. GGN Emergency Response Organization notification capability was available at all times via satellite phone activation of group paging. GGN site Emergency Response Facility intercommunications were available at all times via site internal telephones. In-plant and offsite team communications were available at all times via UHF radio.

"This event is being reported (8-hour notification) as an event or condition that adversely impacted offsite communications in accordance with 10 CFR 50.72(b)(3)(xiii), specifically the loss of the NRC Emergency Notification System (ENS).

"The phone company has been contacted and actions are being taken to restore normal communications capability at this time.

"The NRC Resident Inspector has been notified."

* * * UPDATE AT 1701 EDT ON 08/23/17 FROM LEROY PURDY TO JEFF HERRERA * * *

At 1701 EDT on 8/23/17 the phone systems at Grand Gulf have been restored. The licensee will be notifying the NRC Resident Inspector.

Notified the R4DO (Farnholtz)

Page Last Reviewed/Updated Thursday, August 24, 2017
Thursday, August 24, 2017