Headquarters Daily Report
SEPTEMBER 07, 1999
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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 SEP. 07, 1999
Licensee/Facility: Notification:
Part 21 Database MR Number: H-99-0080
Foxboro Date: 09/07/99
Subject: Part 21 - Potential relay malfunction because of repair
residual material on contact armature plate
Discussion:
VENDOR: Foxboro PT21 FILE NO: 99-39-0
DATE OF DOCUMENT: 09/03/99 ACCESSION NUMBER:
SOURCE DOCUMENT: EN 36122 REVIEWER: REXB, V. Hodge
NEW ISSUE. The vendor, Foxboro, reports a potential failure of contact
output isolator cards, N-2A0-L2C-R or N-2A0-L2C-R with ECEP 10273, that
may contain L0152CK relays manufactured by Communications Instruments
Inc. The subject relays include repair residual material on the contact
armature plate. As a result, the contacts on the subject relays may not
return to the normal de-energized position as designed. This defect is
limited to relays with a manufacturer's date code in the range 9834 to
9933.
The vendor is notifying all nuclear utilities that have purchased
affected relays, recommending replacement of such relays with ones that
the vendor will provide.
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