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Event Notification Report for October 20, 2016

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
10/19/2016 - 10/20/2016

** EVENT NUMBERS **


52278 52306 52309

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Agreement State Event Number: 52278
Rep Org: LOUISIANA RADIATION PROTECTION DIV
Licensee: CB & I WALKER, LLC
Region: 4
City: WALKER State: LA
County:
License #: LA-3462-L01
Agreement: Y
Docket:
NRC Notified By: RUSSELL CLARK
HQ OPS Officer: JEFF HERRERA
Notification Date: 10/04/2016
Notification Time: 16:57 [ET]
Event Date: 10/04/2016
Event Time: 09:10 [CDT]
Last Update Date: 10/19/2016
Emergency Class:
10 CFR Section:
AGREEMENT STATE
Person (Organization):
GREG WERNER (R4DO)
NMSS_EVENTS_NOTIFICA (EMAI)
PATRICIA MILLIGAN (EMAI)
DAN COLLINS (NMSS)

Event Text

AGREEMENT STATE REPORT - POTENTIAL EXCESSIVE EXPOSURE OF RADIOGRAPHER

The following report was received from the Louisiana Department of Environmental Quality via facsimile:

"On October 4, 2016, at approximately 0910 CDT, the Radiation Safety Office of CB&I Walker LA, LLC notified LDEQ [Louisiana Department of Environmental Quality] of a potential excessive exposure to a radiographer working in the licensee's permanent radiographic facility. After making a proper radiation survey, the above radiographer moved his exposure device with 100.6 Ci of Ir-192 and then noticed the rear fitting had come loose from the crank-out control, which showed approximately three inches of drive cable exposed. The radiographer pushed the fitting forward and tightened it back into the connector of the crank-out control. The licensee believes that at this point the source was inadvertently pushed out of the front of the camera approximately three to four inches. The radiographer did not notice this at the time and continued setting up for the next exposure.

"Upon exiting the shooting cell, the radiographer observed the red revolving warning light. The radiographer also observed sounding of the shooting cell alarm upon his exiting the cell. The radiographer stated that he was inside the shooting cell for a period of between five to seven minutes. The radiographer read his direct reading pocket dosimeter and observed an off-scale reading. The radiographer immediately notified his RSO [Radiation Safety Officer], who immediately sent his whole body badge in for rush processing subsequent to the dosimetry processor being notified by the RSO. The RSO used the radiographer's information of occupancy time and his statement that he was standing while the exposure device was stationed on the shooting cell floor throughout the incident to estimate the radiographer's whole body exposure of between 5 and 25 R. The radiographer was then immediately sent to a local medical laboratory to have his blood drawn. There is no potential for off-site exposure. The licensee was advised by this inspector to contact the REAC/TS facility for guidance on blood chromosomal analysis. This is a preliminary report in an on-going investigation."

Louisiana Event Report ID No.: LA160010

* * * UPDATE AT 1648 EDT ON 10/19/16 FROM RUSSELL S. CLARK TO S. SANDIN * * *

The State of Louisiana corrected the licensee to show CB & I Walker, LLC.

Notified R4DO (Kramer), NMSS Events Notification, NMSS (Collins) and NSIR (Milligan) via email.

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Research Reactor Event Number: 52306
Facility: REED COLLEGE
RX Type: 250 KW TRIGA MARK I
Comments:
Region: 0
City: PORTLAND State: OR
County: MULTNOMAH
License #: R-112
Agreement: Y
Docket: 05000288
NRC Notified By: CHRISTINA BARRETT
HQ OPS Officer: DONG HWA PARK
Notification Date: 10/19/2016
Notification Time: 16:27 [ET]
Event Date: 10/18/2016
Event Time: 15:35 [PDT]
Last Update Date: 10/19/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
RESEARCH AND TEST REACTOR EVENT
Person (Organization):
GEOFFREY WERTZ (NRR)
ELIZABETH REED (NRR)
ALEXANDER ADAMS (NRR)

Event Text

TECHNICAL SPECIFICATION VIOLATION

"On October 18th, 2016, the logarithmic channel was rendered inoperable when a ground wire became detached from the log pre-amp. This, in combination with the pre-amps close proximity to other electrical wires, created enough noise to make the log channel reading unreliable. The reactor was operated for over an hour before the malfunction was identified. At that point, the reactor was scrammed and secured. The compromised ground was discovered and replaced, and the pre-amp was placed on a platform away from the interference of the other electrical components. This log channel reading returned to normal, but operations were still suspended until the channel could be more thoroughly tested. A Corrective Action Report (CAR) was initiated. This is a violation of Technical Specifications 3.2.2, 3.2.3 and 4.2(e). This report to the NRC Operations Center is required by Technical Specification 6.2.2."

The licensee has notified the NRC Project Manager (Wertz).

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Power Reactor Event Number: 52309
Facility: PALO VERDE
Region: 4 State: AZ
Unit: [ ] [ ] [3]
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: ARMANDO AVILES
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 10/20/2016
Notification Time: 00:09 [ET]
Event Date: 10/19/2016
Event Time: 18:30 [MST]
Last Update Date: 10/20/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(A) - DEGRADED CONDITION
Person (Organization):
JOHN KRAMER (R4DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
3 N N 0 Defueled 0 Defueled

Event Text

SAFETY INJECTION PIPING WELD FLAW

"While performing a scheduled inservice inspection on a section of safety injection system piping, a flaw was identified in a circumferential weld on the 14 inch safety injection line from the 2A safety injection tank to the 2A reactor coolant loop. Examination results indicate that the flaw constitutes a welding defect that cannot be found acceptable under ASME Section XI, IWB-3600, or Table IWB-3410-1. Further analysis is being conducted.

"The unit had been shutdown for its 19th refueling outage (3R19) on October 8, 2016, at 0000.

"The NRC Resident Inspectors have been informed of this condition."

This piping is required to be operable in modes one through four.

Page Last Reviewed/Updated Thursday, October 20, 2016
Thursday, October 20, 2016