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Event Notification Report for April 24, 2000

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
04/23/2000 - 04/24/2000

EVENT NUMBERS
369233692436926

Other Nuclear Material
Event Number: 36923
Rep Org: SYNCOR INTERNATIONAL CORP
Licensee: SYNCOR INTERNATIONAL CORP
Region: 1
City: STAMFORD   State: CT
County:
License #: 04-26507-01MD
Agreement: N
Docket:
NRC Notified By: DAVID PELLICCIARINI
HQ OPS Officer: JOHN MacKINNON
Notification Date: 04/24/2000
Notification Time: 15:26 [ET]
Event Date: 04/24/2000
Event Time: 05:00 [EDT]
Last Update Date: 04/24/2000
Emergency Class: NON EMERGENCY
10 CFR Section:
Person (Organization):
JOHN WHITE (R1)
JOHN HICKEY (NMSS)
PHIL HARRELL (R4)
Event Text
SURFACE CONTAMINATION FOUND ON PACKAGE DELIVERED TO SYNCOR STAMFORD, CT PHARMACY.

A PACKAGE DELIVERED TO THE SYNCOR STAMFORD, CT. PHARMACY FACILITY FROM NORTHERN WESTCHESTER HOSPITAL, MOUNT KISCO, NY., WAS FOUND TO HAVE OUTSIDE SURFACE CONTAMINATION LEVEL OF 645,000 DPM/100 SQUARE CENTIMETER. THE SURFACE CONTAMINATION OF THE PACKAGE WAS LIMITED TO THE TOP CORNER OF THE PACKAGE. THE HIGHEST SURFACE CONTACT RADIATION LEVEL ON THE PACKAGE WAS 0.5MR/HR (TOP CORNER OF THE PACKAGE). THE SURFACE CONTAMINATION WAS FROM Tc-99m (145KeV GAMMA EMITTER, HALF LIFE OF ABOUT 6 HOURS). THE PACKAGE WAS OPENED AND NO SURFACE CONTAMINATION WAS FOUND INSIDE THE PACKAGE. THE DRIVER OF THE VEHICLE AND THE INSIDE OF THE VEHICLE THAT TRANSPORTED THE PACKAGE WERE SURVEYED AND NO CONTAMINATION WAS FOUND. NORTHERN WESTCHESTER HOSPITAL WAS NOTIFIED BY SYNCOR OF THIS EVENT. SYNCOR NOTIFIED NRC REGION 4 (JEFF CRUZ) OF THIS EVENT.


!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 36924
Facility: FARLEY
Region: 2     State: AL
Unit: [1] [] []
RX Type: [1] W-3-LP,[2] W-3-LP
NRC Notified By: WES CUMBEE
HQ OPS Officer: JOHN MacKINNON
Notification Date: 04/24/2000
Notification Time: 16:26 [ET]
Event Date: 04/24/2000
Event Time: 12:53 [CDT]
Last Update Date: 04/27/2000
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(ii) - ESF ACTUATION
Person (Organization):
ANN BOLAND (R2)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 Refueling 0 Refueling
Event Text
AUTOMATIC START OF THE PENETRATION ROOM FILTRATION SYSTEM DURING MAINTENANCE ACTIVITIES.

Maintenance investigation of a high vibration on "1B" Spent Fuel Pool Exhaust fan resulted in the trip of the Spent Fuel Pool ventilation and subsequent autostart of the Penetration Room Filtration System. All systems operated as required.

Operations restarted the Spent Fuel Pool ventilation and secured the Penetration Room Filtration System.

An investigation into this event is in progress.

The NRC Resident Inspector was notified of this event by the licensee.

***** UPDATE AT 1357 EDT ON 04/27/00 FROM VAUDY HOLLY, JR. TO LEIGH TROCINE *****

The licensee is retracting this event notification. The following text is a portion of a facsimile received from the licensee:

"This event has been evaluated further and determined to be an invalid actuation based on 10 CFR 50.72(b)(2)(ii)(B)(3)(iv) and (v). An invalid actuation of the fuel building ventilation system or auxiliary building ventilation system is not reportable."

"The accident analysis for fuel handling accidents in the spent fuel pool (SFP) credits the high radiation signal initiation of SFP ventilation isolation and penetration room filtration (PRF) system start. The low differential pressure start of the PRF system is not credited; therefore, PRF system actuation in the absence of a high radiation signal is not an [engineered safety feature (ESF)] actuation. For the purposes of 10 CFR 50.72, this is an invalid actuation."

The licensee notified the NRC resident inspector. The NRC operations officer notified the R2DO (Fredrickson).


Power Reactor
Event Number: 36926
Facility: SUSQUEHANNA
Region: 1     State: PA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: ARDIE KISSINGER
HQ OPS Officer: JOHN MacKINNON
Notification Date: 04/24/2000
Notification Time: 17:06 [ET]
Event Date: 04/24/2000
Event Time: 14:03 [EDT]
Last Update Date: 04/24/2000
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(ii) - ESF ACTUATION
Person (Organization):
JOHN WHITE (R1)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 100 Power Operation 100 Power Operation
Event Text
INVALID ISOLATED SIGNAL WAS GENERATED

During operation of Unit 2 at 100% power, it has been determined that the inboard Primary Containment Isolation Valves associated with the Containment Radiation Monitors (CRMs) received an invalid isolation signal. During maintenance activities in the panel to change out a previously failed relay for the "A" CRM, the relay for automatic isolation was disturbed and an invalid signal was generated. The relay inputs a close signal to the inboard valves of both CRM's, and the invalid signal caused the "B" CRM to isolate. The licensee is investigating this event.

The NRC Resident Inspector was notified of this event by the licensee.