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Event Notification Report for June 21, 2005

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
06/20/2005 - 06/21/2005

** EVENT NUMBERS **


41778 41785

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General Information or Other Event Number: 41778
Rep Org: TEXAS DEPARTMENT OF HEALTH
Licensee: NDS SOLUTIONS/LAMCO & ASSOCIATES
Region: 4
City: BRYAN State: TX
County:
License #: L05879/L05152
Agreement: Y
Docket:
NRC Notified By: ROBERT FREE
HQ OPS Officer: CHAUNCEY GOULD
Notification Date: 06/15/2005
Notification Time: 18:21 [ET]
Event Date: 06/08/2005
Event Time: [CDT]
Last Update Date: 06/15/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
JACK WHITTEN (R4)
C.W. (BILL) REAMER (NMSS)

Event Text

RADIOGRAPHY SOURCE DISCONNECT/ RETRIEVAL AND POTENTIAL OVEREXPOSURE

"Consultant for Lamco was conducting a source retrieval on June 8, 2005 and personnel monitor fell near the 70 Curie radiography source. She picked it up when she realized it and had it returned to the supplier for processing. After receiving the results on June 13, 2005, she called to report the results. The personnel monitor received 9.477 rem, deep dose equivalent. The consultant estimated she received 1.5 rem based on her direct reading dosimeter after the source recovery was completed."


Texas Incident # I-8236

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Power Reactor Event Number: 41785
Facility: DUANE ARNOLD
Region: 3 State: IA
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: EDWARD E. HARRISON
HQ OPS Officer: STEVE SANDIN
Notification Date: 06/20/2005
Notification Time: 05:41 [ET]
Event Date: 06/20/2005
Event Time: 03:08 [CDT]
Last Update Date: 06/20/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL
Person (Organization):
THOMAS KOZAK (R3)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 96 Power Operation 96 Power Operation

Event Text

BOTH STANDBY GAS TREATMENT TRAINS BRIEFLY INOPERABLE DURING TESTING

"During the performance of the monthly 10-hour run testing of the 'B' Standby Gas Treatment (SBGT) train it was discovered that the flow-indicating controller was not controlling flow at the required setpoint. The 'B' SBGT train was declared inoperable at 0308 on 20 June 2005. As part of the testing, the 'A' SBGT train Mode Select switch was in Manual with the inlet damper closed rendering the 'A' SBGT train inoperable. During the short period of time (approximately 4 minutes) between the discovery of the 'B' SBGT controller failure and the return of the 'A' SBGT train to an operable condition, both SBGT trains were inoperable which is a condition that could prevent the fulfillment of the safety function of the SBGT system to control the release of radioactive material. This is an 8-hour reportable event per 50.72(b)(3)(v)(C).

"The 'A' SBGT train was restored to operable status at 0312 when its inlet damper was reopened and its Mode Select switch was returned to AUTO per the surveillance test."

The licensee will inform the NRC Resident Inspector.

Page Last Reviewed/Updated Friday, March 30, 2012
Friday, March 30, 2012