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Event Notification Report for January 22, 2003

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
01/21/2003 - 01/22/2003

EVENT NUMBERS
3954039529

Power Reactor
Event Number: 39540
Facility: LASALLE
Region: 3     State: IL
Unit: [] [2] []
RX Type: [1] GE-5,[2] GE-5
NRC Notified By: HAROLD VINYARD
HQ OPS Officer: MIKE RIPLEY
Notification Date: 01/27/2003
Notification Time: 17:40 [ET]
Event Date: 01/22/2003
Event Time: 21:51 [CST]
Last Update Date: 01/27/2003
Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
Person (Organization):
MARK RING (R3)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N N 0 Refueling 0 Refueling
Event Text
INVALID AUTOMATIC START OF EMERGENCY DIESEL GENERATOR DURING TESTING

"On January 22, 2003, at 2045 hours, with Unit 2 in Mode 5 (refuel), the 2B Emergency Diesel Generator (DG) automatically started during the performance of a Unit 2 High Pressure Excess Flow Check Valve Operability Test. The apparent cause was an improper manipulation of instrument isolation valves during the test, which caused the associated Reactor Vessel Water Level Transmitters to sense a low level condition. This invalid low level signal resulted in the automatic actuation of the 2B DG (Div. III) which is the emergency power supply to the Unit 2 High Pressure Core Spray (HPCS) System. The Unit 2 HPCS pump had been properly removed from service prior to the event and therefore did not actuate. This system actuation is reportable under 10CFR50.73 (a) (2) (iv) (A).

"The 2B DG responded normally and reached normal speed and voltage. It was run both loaded and unloaded successfully, and was secured at 0238 on January 23, 2003.

"This report is being made in accordance with 10CFR50.73 (a) (1), which states that in the case of an invalid actuation reported under 10CFR50.73(a)2)(iv), other than an actuation of the RPS when the reactor is critical, the licensee may provide a telephone notification to the NRC operations center within 60 days after discovery of the event Instead of submitting a written LER."

The licensee notified the NRC resident inspector.


Other Nuclear Material
Event Number: 39529
Rep Org: UNIVERSITY OF IDAHO
Licensee: UNIVERSITY OF IDAHO
Region: 4
City:   State: ID
County:
License #: 11-27382-01
Agreement: N
Docket:
NRC Notified By: VICKY SCHUR
HQ OPS Officer: RICH LAURA
Notification Date: 01/22/2003
Notification Time: 13:53 [ET]
Event Date: 01/22/2003
Event Time: 00:00 [MST]
Last Update Date: 01/23/2003
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
Person (Organization):
GREG PICK (R4)
JOHN HICKEY (NMSS)
Event Text
LOST EXIT SIGN CONTAINING TRITIUM

The licensee reported that an exit sign containing upwards of 21 curies of tritium was missing. The sign had been installed in the Administration Building auditorium in the back stage area. The manufacturer of the sign was SRB. The licensee did not have the model or serial number of the sign at the time of the report. The licensee further indicated that no malevolent intent was suspected. The administration building had been undergoing renovation during the recent past.

* * * * UPDATE FROM VICKY SCHUR TAKEN BY MIKE RIPLEY 1/23/03 AT 1632 EST * * * *

The exit sign was manufactured by SRB, Inc. The sign is a model B100 Luminexit sign, serial number: 597374. The sign contained 9.75 curies of tritium as of 10/30/95 which was the shipment date from the manufacturer. The licensee stated that the manufacturer has confirmed that the sign has not been returned to them for disposal. The licensee continues to investigate the loss of the sign.

Notified R4 DO (G. Pick) and NMSS (J. Hickey)