United States Nuclear Regulatory Commission - Protecting People and the Environment

LICENSEE: BARKER MICORFARADAS, INC.
SITE: INTEGRATED RESOURCES, INC. EN NUMBER: 35304
DOCKET: EVENT DATE: 01-22-99
RX TYPE: EVENT TIME: 14:20
VENDORS: NOTIFY DATE: 01-22-99
EMERGENCY CLASS: N/A REGION: 4 STATE: NE TIME: 15:20
OPS OFFICER: JOHN MacKINNON
10 CFR SECTION: CCCC UNSPECIFIED PARAGRAPH

PRELIMINARY NOTIFICATION BY INTEGRATED RESOURCES OF 10-CFR-PART-21 NOTIFICATION

INTEGRATED RESOURCES, INC., CALLED TO MAKE A PRELIMINARY NOTIFICATION OF INTENT TO ISSUE A 10-CFR-PART-21 NOTIFICATION ON THEMSELVES. DRESDEN STATION SENT SQUARE ROOT CONVERTERS (DRESDEN STATION HAS ABOUT 100 OF THESE SQUARE ROOT CONVERTERS) TO INTEGRATED RESOURCES, INC., FOR FAILURE ANALYSIS BECAUSE AFTER ABOUT 5 YEARS OF USE, THESE SQUARE ROOT CONVERTERS START TO FAIL. ALL THE SQUARE ROOT CONVERTERS ARE NON-SAFETY RELATED. NINE (9) OF THE SQUARE ROOT CONVERTERS WERE TESTED. FAILURE ANALYSIS DETERMINED THAT ALL FIVE (5) OF THE ALUMINUM ELECTROLYTIC CAPACITORY SPARGUE ELECTRIC CO. (MODEL #TE1302 WITH MANUFACTURE DATE CODE OF 9322H) FAILED. ALL THE OTHER SQUARE ROOT CONVERTERS' FAILURE POINT IS WHERE THE SQUARE ROOT CONVERTER COULD NOT BE CALIBRATED PROPERLY. THE SQUARE ROOT CONVERTERS ARE BEING SENT BACK TO THEIR MANUFACTURER (BARKER MICROFARADS, INC., LOCATED IN HILLSVILLE, VA) TO DETERMINE THE FAILURE MECHANISM OF THE SQUARE ROOT CONVERTERS. INTEGRATE RESOURCES, INC., STATED THAT THEY EXPECTED THE RESULTS OF THE FAILURE MECHANISM OF THE SQUARE ROOT CONVERTS TO BE SENT TO THEM NEXT WEEK.

INTEGRATED RESOURCES, INC., SAID THAT NINE MILE POINT UNIT 1 HAS ONE SAFETY-RELATED SQUARE ROOT CONVERTER AND ONE SAFETY-RELATED FUNCTION GENERATOR AND THAT FITZPATRICK HAS TWO SAFETY-RELATED BASIC CONTROLLERS. THESE TWO NUCLEAR POWER PLANTS WILL BE NOTIFIED OF THE POTENTIAL FAILURE OF THESE DEVICES.


Page Last Reviewed/Updated Thursday, March 29, 2012