Part 21 Report - 1998-350

LICENSEE: CONSOLIDATED EDISON CO. OF N.Y./NEW SITE: INDIAN POINT 3 EN NUMBER:34155 DOCKET: 05000286 EVENT DATE: 04-29-98 RX TYPE: PWR EVENT TIME: 10:30 VENDORS: W-4-LP NOTIFY DATE: 04-30-98 EMERGENCY CLASS: N/A REGION: 1 STATE: NY TIME: 15:39 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 3 N Y 100 POWER OPERATION 100 POWER OPERATION PART 21 REPORT ON FAILURE OF 480 VAC BREAKER DUE TO LACK OF LUBRICATION. AN ENGINEERING EVALUATION CONCLUDED THE WESTINGHOUSE TYPE DS-416 CIRCUIT BREAKER FAILED TO OPEN ON DEMAND BECAUSE LUBRICATION AT KEY PIVOT POINTS IN THE BREAKER MECHANISM WAS MISSING. THE LACK OF PROPER LUBRICATION WAS DETERMINED TO BE THE RESULT OF A BREAKER OVERHAUL PERFORMED BY POWER DISTRIBUTION TECHNOLOGY (PDT) WHICH REMOVED THE LUBRICANTS AND FAILED TO REAPPLY THEM. PDT HAD OVERHAULED THE FAILED BREAKER AND THREE OTHER TYPE DS-416 BREAKERS IN 1994 IN ACCORDANCE WITH THE LICENSEE'S PURCHASE ORDER WHICH CONTAINED SPECIFIC REQUIREMENTS RELATED TO LUBRICATION. THE LACK OF LUBRICATION ON THE BREAKERS OVERHAULED BY PDT, WHICH IS NO LONGER IN BUSINESS, COULD HAVE PREVENTED A BREAKER FROM PERFORMING ITS SAFETY FUNCTION, RESULTING IN A SUBSTANTIAL SAFETY HAZARD. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR.

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