Headquarters Daily Report
JANUARY 20, 2000
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REPORT NEGATIVE NO INPUT
ATTACHED INPUT RECEIVED RECEIVED
HEADQUARTERS X
REGION I X
REGION II X
REGION III X
REGION IV X
PRIORITY ATTENTION REQUIRED MORNING REPORT - HEADQUARTERS JANUARY 20, 2000
Licensee/Facility: Notification:
Part 21 Database MR Number: H-00-0001
Westinghouse Date: 01/20/00
Subject: Part 21 - Degraded stock DB-25 circuit breaker
Discussion:
VENDOR: Westinghouse PT21 FILE NO: 99-44-0
DATE OF DOCUMENT: 06/18/99 ACCESSION NUMBER: 9908090058
SOURCE DOCUMENT: LETTER REVIEWER: REXB, T. Koshy
NEW ISSUE. The Ginna licensee reports that a safety-related Westinghouse
DB-25 breaker mechanism in stock did not pass degradation checks.
Misaligned drilled holes in the mechanism caused misalignment of the pin
above the toggle lever. Also, the right rear quarter section of the
tripper pan is bent upward, resulting in unsatisfactory tripper bar gaps.
NRC contact with the manufacturer confirmed that the assembly would
continue to operate if the mechanism is positioned geometrically
compatible with the other pieces because the pin out of level is not one
of the critical characteristics for the operation. The bent trip pan
could be the result of handling but the breaker performed properly with
these deficiencies when tested as a part of incoming inspection.
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