United States Nuclear Regulatory Commission - Protecting People and the Environment

#33536


CITRS Event Detail Report

Source CITAS # Occurance Date Operatibility Location Methode Code Priority Reportable Originator System K2MIS #
SOR 98-E00356 1/14/98 4:54:00 PM CB NO NO Santini, Philip 480V

Event Description:

January 14, 1998
Indiana Point Unit No.2
Docket No. 50-247

Part 21 Notification - Westinghouse Breaker Overhaul Work

This report is being made per 10CFR21(d) (3)(i), Reporting of Defects and Noncompliance.

During performance of a comprehensive investigation of Westinghouse supplied DB-50 breakers, it was determined that low trip bar forces, and winding of the trip pan spring contributed to breaker miss-operation which might have resulted in the breakers malfunctioning when called upon to perform their safety related function. These breaker anomalies were previously reported to the NRC order LER 97-024.

Immediate Actions:

Assignor Assignee Assignment Status Due Date Last Updated Action
Santini, Philip DMRG, Daily Mgm Review Grp Review Event New 1/21/98 1/14/98

Event Summary:

Root Cause:
Santini, Philip SWS, Shift Watch Sup. Review Event New 1/14/98 1/14/98
Event Summary:
Root Cause:
Santini, Philip WE, Watch Fag. Review Event New 1/14/98 1/14/98
Event Summary:
Root Cause:

Westinghouse Repair and Replacement Services
2000 Cheswick Ave
Cheswick, PA



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