Part 21 Report - 1998-470
LICENSEE: ROCHESTER GAS & ELECTRIC CORP.
SITE: GINNA 1 EN NUMBER:34363
DOCKET: 05000244 EVENT DATE: 06-08-98
RX TYPE: PWR EVENT TIME: 00:00
VENDORS: W-2-LP NOTIFY DATE: 06-08-98
EMERGENCY CLASS: N/A REGION: 1 STATE: NY TIME: 11:49
OPS OFFICER: CHAUNCEY GOULD
10 CFR SECTION: CCCC 21.21 UNSPECIFIED PARAGRAPH
UNIT SCRAM RX INIT INITIAL MODE CURR CURRENT MODE
CODE CRIT PWR PWR
1 N Y 100 POWER OPERATION 100 POWER OPERATION
10CFR PART 21 INVOLVING A REFURBISHED WESTINGHOUSE DB-25 CIRCUIT
BREAKER RECEIVED WITH A MISSING PART.
THE LICENSEE RECEIVED A WESTINGHOUSE DB-25 CIRCUIT BREAKER
REFURBISHED
IN 1992 BY WESTINGHOUSE REPLACEMENT COMPONENTS SERVICES,
MONROEVILLE, PA. THE REFURBISHED DB-25 CIRCUIT BREAKER WAS
RETURNED TO GINNA WITH A MISSING PIN IN THE OPERATING MECHANISM.
THE ABSENCE OF THIS PIN IS BELIEVED TO HAVE CONTRIBUTED TO THE
FAILURE OF THE "SWP1B" CIRCUIT BREAKER TO CLOSE
ON A MANUAL SIGNAL FROM THE MAIN CONTROL BOARD. THIS IMPLIES
THAT THE POTENTIAL EXISTS FOR THE BREAKER NOT TO CLOSE ON AN
AUTOMATIC DEMAND
AND THEREFORE NOT BE AVAILABLE TO PERFORM ITS SAFETY FUNCTIONS.
THERE ARE 41 PERMANENTLY INSTALLED DB-25 BREAKERS IN THE SCREEN
HOUSE AND TURBINE BUILDINGS AT GINNA. ALL OF THE REMAINING
BREAKERS WERE VISUALLY INSPECTED TO VERIFY THE PIN IN QUESTION
WAS INSTALLED. NO OTHER BREAKERS WERE FOUND TO BE MISSING THE
PIN.
THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR.
Page Last Reviewed/Updated Wednesday, March 24, 2021