Part 21 Report - 1997-761
ACCESSION #: 9710170053
FOXBORO
The Foxboro Company
Foxboro, MA 02035-2099
14 October 1997 United States of America
Telephone +1 508 549 6750
Facsimile +1 508 549 6750
Mr. Steve Saidan Internet http: // www.foxboro.com/
U.S. Nuclear Regulatory Commission
Events Assessment
1155 Rockville Heights
Rockville, MD 02852
Subject: Our notification to you, Event Number 33081, at 11:36 am
October 14, 1997
Dear Mr. Saidan,
This notification involves a total of six (6) Foxboro Differential
Pressure Transmitters shipped to nuclear sites. Five (5) transmitters
were shipped (7/26/96) to Vermont Yankee, Model Number N-823DP-D3S1SH1
and one (1) transmitter shipped (3/11/97) to Consolidated Edison of New
York, Indian Point Station Number 2, Model N-823DP-D3S1SH2-F.
The problem with these transmitters is that Foxboro inadvertently shipped
the wrong electronics module, which is installed inside these
transmitters. We shipped an electronics module which had not undergone
the seismic qualification tests required for this product, This module
is, however, from the same family as modules already nuclear qualified,
and is robust in design. We immediately undertook to run random
vibration tests as a first step to assess its capability. These tests
gave us confidence that the electronic modules would pass the nuclear
seismic requirements and we are on a path to perform these qualification
tests within the next two to four weeks.
We contacted both Vermont Yankee and Consolidated Edison of New York on
October 9, 1997. We supplied the seismic and random vibration test data
to Vermont Yankee on October 10th to help them assess their application
for these transmitters. We talked with Steve Kolpa on Tuesday morning,
October 14th. He informed us that the vibration data had been reviewed
and that there was no immediate operability problem. He asked that we
keep him informed when our qualification tests were completed.
Consolidated Edison of New York reported back, through a conversation
with Mr. Alan Budnick, the General Manager of Quality Assurance
Oversight, on Friday October 10th, that this transmitter did not affect
plant operability. This transmitter is used in the reactor coolant
system but is valved out and had no direct safety function. It is only
used when the reactor is shut-down and its next use would be in
approximately two years.
We did, however, uncover another issue relating to Consolidated Edison of
New York. We reviewed all purchase orders for this product, to make sure
that we had met all technical specifications. We found that a
specification for normal radiation had been overlooked in
FOXBORO
this instance. For this particular order, Consolidated Edison required
6000 rads, and our product does not quite meet this level. We are
supplying our radiation test data to Consolidation Edison for their
review. The data indicates a minimum of 4700 rads capability.
Consolidated Edison will review this data to determine if there is any
effect on transmitter life for its particular location. If not, then the
transmitter will not be replaced. If there is a problem, then the
transmitter will be replaced.
Consolidated Edison of New York:
P.O.# Ship date Foxboro S.O.# Qty Model Number
167927 3/11/97 96F66565 1 N0823DP-D3S1SH2-F CS-N/SRC
Vermont Yankee Nuclear Power.
P.O.# Ship Date Foxboro S.O.# Qty Model Number
96-1405600 7/26/96 9SF19538 5 N-832DP-D3S1SH1 CS-N/SRC
If you need additional information, please contact Truman King at (508)
549-66797, or Richard Anderson at (508) 549-3889, or Jack Sears at (508)
549-2191. We will keep you informed of on-going progress.
Regards,
THE FOXBORO COMPANY
Truman L. King, Director
Corporate Quality and Product Safety
TLK/baa
GENERAL INFORMATION or OTHER EVENT NUMBER: 33081
LICENSEE: FOXBORO COMPANY NOTIFICATION DATE: 10/14/97
CITY: FOXBORO REGION: 1 NOTIFICATION TIME: 11:36 [ET]
COUNTY: STATE: MA EVENT DATE: 10/14/97
LICENSE#: AGREEMENT: Y EVENT TIME: 00:00[EDT]
DOCKET: LAST UPDATE DATE: 10/14/97
NOTIFICATIONS
JOHN WHITE RDO
NRC NOTIFIED BY: TRUMAN KING VERN HODGE NRR
HQ OPS OFFICER: STEVE SANDIN
EMERGENCY CLASS: NOT APPLICABLE
10 CFR SECTION:
CCCC 21.21 UNSPECIFIED PARAGRAPH
EVENT TEXT
PART 21 NOTIFICATION
FOXBORO COMPANY LOCATED IN FOXBORO, MA. SUPPLIED A TOTAL OF SIX
NUCLEAR
QUALIFIED PRESSURE TRANSMITTERS CONTAINING THE INCORRECT
ELECTRONIC
MODULES. THE ELECTRONIC MODULES, ALTHOUGH FROM THE SAME FAMILY,
WERE NOT
SEISMICALLY QUALIFIED AS SPECIFIED ON THE PURCHASE ORDERS. THESE SIX
UNITS WERE SUPPLIED TO:
QTY: 5
MODEL # N-823DP-D3SH1
SHIPPED: 7/26/96
INSTALLED AT VERMONT YANKEE
QTY: 1
MODEL # N-823DP-D3SH2-F
SHIPPED: 3/11/97
INSTALLED AT INDIAN POINT 2
ALSO, THE PURCHASE ORDER FROM INDIAN POINT 2 SPECIFIED A CUMULATIVE
EXPOSURE OF 6,000 RADS FOR SERVICE LIFE CONSIDERATION. FOXBORO
DETERMINED THAT, THROUGH AN OVERSIGHT ON THEIR PART, THIS
REQUIREMENT HAD
NOT BEEN TAKEN INTO CONSIDERATION.
FOXBORO HAS BEEN IN CONTACT WITH BOTH UTILITIES. AT THIS TIME, NEITHER
UTILITY HAS INDICATED AN OPERABILITY CONCERN FOR THESE INSTALLED
PRESSURE
TRANSMITTERS. FOXBORO WILL FORMALIZE AND SUBMIT A WRITTEN REPORT.
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