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Event Notification Report for February 15, 2017

U.S. Nuclear Regulatory Commission Operations Center Event Reports For 02/14/2017 - 02/15/2017 ** EVENT NUMBERS ** 52535 52547 Agreement State Event Number: 52535 Rep Org: LOUISIANA RADIATION PROTECTION DIV Licensee: ALPHA-OMEGA SERVICES, INC. Region: 4 City: BELLFLOWER State: CA County: License #: LA-10025-L01 Agreement: Y Docket: NRC Notified By: JAMES M. PATE III HQ OPS Officer: DONG HWA PARK Notification Date: 02/06/2017 Notification Time: 12:40 [ET] Event Date: 02/06/2017 Event Time: [PST] Last Update Date: 02/06/2017 Emergency Class: NON EMERGENCY 10 CFR Section: AGREEMENT STATE Person (Organization): GREG WARNICK (R4DO) NMSS_EVENTS_NOTIFIC (EMAI) Event Text AGREEMENT STATE REPORT - TRANSPORTATION POSTING INACCURACY The following report was received from the State of Louisiana via email: "Event description: On February 6, 2017, LDEQ [Louisiana Department of Environmental Quality] was notified by Alpha-Omega, Inc., that the facility had received three 'EMPTY' Nucletron V2 containers from a Mexico site then transported to the United States, Alpha-Omega Services, Inc., Vinton, Louisiana, 70668. "When inspected, two of the containers had Ir-192 sources in them, Model 105.002. Container 2785C6 had source D36F3728, 25 mCi of Ir-192, a QSA Global source. Container 2053C6 had source D36P3481, 351 mCi of Ir-192, an Alpha-Omega, Inc. source. "Event Report ID No.: LA-170002." Power Reactor Event Number: 52547 Facility: LASALLE Region: 3 State: IL Unit: [1] [ ] [ ] RX Type: [1] GE-5,[2] GE-5 NRC Notified By: WAYNE CLAYTON HQ OPS Officer: JEFF ROTTON Notification Date: 02/14/2017 Notification Time: 02:40 [ET] Event Date: 02/13/2017 Event Time: 23:09 [CST] Last Update Date: 02/14/2017 Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL Person (Organization): PATRICIA PELKE (R3DO) Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode 1 A/R Y 100 Power Operation 0 Hot Shutdown Event Text UNIT 1 AUTOMATIC REACTOR SCRAM DUE TO MAIN GENERATOR TRIP ON DIFFERENTIAL CURRENT "This notification is being provided in accordance with 10 CFR 50.72(b)(2)(iv)(B). "On February 13, 2017 at 2309 CST, a Unit 1 Reactor Automatic Scram signal was received due to Turbine Control Valve Fast Closure. The turbine trip was due to the main generator trip on Differential Current. The 'U' safety relief valve actuated in the relief mode on the turbine trip, and has subsequently reset with tailpipe temperature returning to normal. The plant is in a stable condition with reactor pressure being maintained by the Turbine Bypass valves. Reactor water level is being controlled with feedwater. Investigation into the cause of the event is in progress." All control rods fully inserted on the scram. Unit 1 is in a normal shutdown electric plant alignment. Unit 2 was not affected. The licensee notified the NRC Resident Inspector.

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