United States Nuclear Regulatory Commission - Protecting People and the Environment

Morning Report for September 7, 1999

                       Headquarters Daily Report

                         SEPTEMBER 07, 1999

***************************************************************************
                    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.
_
Page Last Reviewed/Updated Thursday, March 29, 2012