United States Nuclear Regulatory Commission - Protecting People and the Environment

10/14/2000 U.S. Nuclear Regulatory Commission Operations Center Event Report Page 1

General Information or Other (PAR) Event# 37427
Rep Org: ITT INDUSTRIES Notification Date/Time: 10/13/2000 16:20 (EDT)
Supplier: ITT INDUSTRIES Event Date/Time: 08/18/2000 (EDT)
Last Modification: 10/25/2000
Region: 2 Docket #:
City: ST. GEORGE Agreement State: Yes
County: License #:
State: SC
NRC Notifted by: PATTON (BY FAX) Notifications: KEN BARR R2
HQ Ops Officer: CHAUNCEY GOULD VERN HODGE NRR
Emergency Class: NON EMERGENCY DAVE LOVELESS R4
10 CFR Section: MONTE PHILLIPS R3
21.21 UNSPECIFIED PARAGRAPH LAWRENCE DOERFLEIN RI

PART 21 INVOLVING POSSIBLE ITT INDUSTRIES TRANSDUCER FAILURES

Since the date of discovery, design alternatives continue to be evaluated. The methods under investigation for corrective action will be mechanical in nature. ITT Conoflow expects to conclude the analysis phase of their investigation by 12/15/00 and currently estimate that replacement units would be available by 2/15/01.

Advice to Customers

Each site location should analyze their system and corresponding potential for failure with regard to this notification. In the absence of a seismic event resulting in radiation and/or a steam line break, they do not believe this unit will cause an operational problem.

Please note that the product qualification was simulated for a ten, (10) year design life. Those units with a service life of ten, (10) years or more should not be considered qualified.

Individual customers will be advised by letter when replacement IEEE I/P transducers are available.

Nature of the Deviation

The nature of the deviation is to the test and performance requirements associated with IEEE 323 and IEEE 344. An inappropriate bonding process was utilized in the manufacture of the IEEE I/P Transducer. This process change began in 1986 and could, during a seismic event involving high radiation and/or high temperature steam, result in the potential failure of the transducer to perform its intended safety function.

Product Models involved

GT25CA1826 GT65CA1826 GT45CA1826

GT25FA1826 GT45FA1826 GT65FA1826

Identification of the Company L ~L~Jl

ITT Conoflow

ITT Conoflow, Division of ITT Grinnell Valve Company

ITT Conoflow, Division of ITT Fluid Technology Corporation

ITT Conoflow, ITT Industries

Location of Components in Use

DUKE ENERGY CORPORATION, CATAWBA NUCLEAR STATION

FORT CALHOUN STATION

KOREA ELECTRIC POWER CORPORATION, KANONAM

ERGYTECH INCORPORATED, HOUSTON, TEXAS

PONTON INDUSTRIES, INCORPORATED, SANTA FE SPRINGS, CALIFORNIA

ONTARIO POWER GENERATION, DNGD, BOWMANVILLE, ONTARIO LIC 3Z8 CANADA

COMMONWEALTH EDISON, MAYWOOD, ILLINOIS

COPES-VULCAN, INCORPORATED, LAKE CITY, PENNSYLVANIA

PETRO-CHEM EQUIPMENT COMPANY, BATON ROUGE, LOUISIANA

ASIAM INTERNATIONAL (TAIWAN) INCORPORATED, TAIPEI 105 TAIWAN, R.O.C.

NEW YORK POWER AUTHORITY, JA FITZPATRICK NUCLEAR PLANT

CONTROL COMPONENTS, INC., RANCHO SANTA MARGARITA, CALIFORNIA

NORTHEAST NUCLEAR ENERGY, HARTFORD, CONNECTICUT

These companies were also informed.

OMAHA PUBLIC POWER DISTRICT, FORT CALHOUN STATION

DETROIT EDISON COMPANY

ALABAMA POWER COMPANY, SOUTHERN NUCLEAR OPERATING COMPANY

GPU NUCLEAR CORPORATION, C/O GPU SERVICE CORPORATION

***UPDATE ON 10/25/00 @ 1425 BY FAX (PATTON) TO GOULD***



This deviation to IEEE 323 and IEEE 324 was discovered during a design change history review. their records indicate that in September, 1986, a change was made to the magnet assembly which was not properly documented for compliance to the IEEE standards. This change was to the adhesive used to bond the magnet assembly together. Upon researching the new adhesive, there is no test data, either in ITT Conoflow records or the adhesive supplier adhesive properties data, which assures that the bond will withstand the rigors of thermal shock, radiation or high temperature/steam exposure. These facts are what prompted the Part 21 NRC notification. The potential failure of the adhesive bonds within the I/P transducer magnet assembly could, under seismic loading, cause the magnet to shift laterally and bind the floating coil which drives the pilot nozzle flapper valve. If that were to occur, the transducer would fail in the last operating output pressure. A change in electrical signal to the transducer may not cause the corresponding change in output pressure.

To date, no units have failed. The potential failure mode will require two conditions to occur.

1. The thermal/steam or radiation conditions must exist for the adhesive bond to fail.

2. There must be sufficient seismic energy (vibration/shock) to move the magnet in a lateral direction.

Nature of the Deviation

The nature of the deviation is to the test and performance requirements associated with IEEE 323 and IEEE 344. An inappropriate bonding process was utilized in the manufacture of the IEEE I/P Transducer. This process change began in 1986 and could, during a seismic event involving high radiation and/or high temperature steam, result in the potential failure of the transducer to perform its intended safety function.

Advice to Customers

Each site location should analyze their system and corresponding potential for failure with regard to this notification. In the absence of a seismic event resulting in radiation and/or a steam line break, we do not believe this unit will cause an operational problem.

Please note that the product qualification was simulated for a ten, (10) year design life. Those units with a service life of ten, (10) years or more should not be considered qualified.

Individual customers wi]l be advised by letter when replacement IEEE I/P transducers are available.

Two more models have been added to the list:

GT25CD1826

GT25FD1826

NRR (Hodge), RDO's (Silk, Boland, Vegel, and Pick) were notified.

ITT Industries

Davic J. Patton

Quality Assurance Manager ConofIow

PO Box 768

5154 Highway 78

St George, SC 29477-0768

tel (843) 563-9281

fax (843) 563-2131

Date: 10-25-00 Rev. 1 dpatton@fluids_ittind.com

10CFR PART 21 NOTIFICATION - IEEE I/P TRANSDUCER

Name and Address of Individuals Informiing The Commission

ITT Conoflow

5154 Highway 78

St. George, SC 29477

Telephone: 843-563-9281

Fax: 843-563-2131

Mr. David Patton - Quality Assurance Manager

Mt. Jeff Gotthelf - Engineering Manager

Mr. Thomas Floro, General Manager

Product Models involved

GT25CA1826 GT65CA1826 GT45CA1826

GT25FA1826 GT45FA1826 GT65FA1826

GT25CD1826� GT25FA1826�

Identification of the Company

ITT Conoflow

ITT Conoflow, Division of ITT Grinnell Valve Company

ITT Conoflow, Division of ITT Fluid Technology Corporation

ITT Conoflow, ITT Industries



Nature of the Deviation

The nature of the deviation is to the test and performance requirements associated with IEEE 323 and IEEE 344. An inappropriate bonding process was utilized in the manufacture of the IEEE I/P Transducer. This process change began in 1986 and could, during a seismic event involving high radiation and/or high temperature steam, result in the potential failure of the transducer to perform its intended safety function.

________________

�Added 10-25-00-missing from original report

ITT Industries

Davic J. Patton

Quality Assurance Manager ConofIow

PO Box 768

5154 Highway 78

St George, SC 29477-0768

tel (843) 563-9281

fax (843) 563-2131

Date: 10-25-00 Rev. 1 dpatton@fluids_ittind.com

This deviation to IEEE 323 and IEEE 324 was discovered during a design change history review. their records indicate that in September, 1986, a change was made to the magnet assembly which was not properly documented for compliance to the IEEE standards. This change was to the adhesive used to bond the magnet assembly together. Upon researching the new adhesive, there is no test data, either in ITT Conoflow records or the adhesive supplier adhesive properties data, which assures that the bond will withstand the rigors of thermal shock, radiation or high temperature/steam exposure. These facts are what prompted the Part 21 NRC notification. The potential failure of the adhesive bonds within the I/P transducer magnet assembly could, under seismic loading, cause the magnet to shift laterally and bind the floating coil which drives the pilot nozzle flapper valve. If that were to occur, the transducer would fail in the last operating output pressure. A change in electrical signal to the transducer may not cause the corresponding change in output pressure.

To date, no units have failed. The potential failure mode will require two conditions to occur.

1. The thermal/steam or radiation conditions must exist for the adhesive bond to fail.

2. There must be sufficient seismic energy (vibration/shock) to move the magnet in a lateral direction.

Date of Discovery

August 18, 2000

Location of Components in Use

DUKE ENERGY CORPORATION KOREA ELECTRIC POWER CORPORATION
CATAWBA NUCLEAR STATION KANONAM
- PURCHASING P.O. BOX 40
4800 CONCORD ROAD 167, SAMSONG-DONG
MAIL CODE CN04P KANGNAM-GU
YORK, SOUTH CAROLINA SEOUL, KOREA 135-791
FORT CALHOUN STATION KORI NPP #1/2
YOUNG WANG NPP 1/2
KORI NPP #4
 
ERGYTECH, INCORPORATED PONTON INDUSTRIES, INCORPORATED
2400 AUGUST, SUITE 310 8118 ALLPORT AVENUE
HOUSTON, TEXAS 77057 SANTA FE SPRINGS, CALIFORNIA 90670
ONTARIO POWER GENERATION COMMONWEALTH EDISON
DNGD 1319 SOUTH FIRST AVENUE
PO BOX 4000 MAYWOOD, ILLINOIS 60153-2496
BOWMANVILLE, ONTARIO LIC 3Z8
CANADA
 
COPES-VULCAN, INCORPORATED PETRO-CHEM EQUIPMENT COMPANY
MARTIN AND RICE AVENUE P.O. BOX 358
LAKE CITY, PENNSYLVANIA 16423 BATON ROUGE, LOUISIANA 70821
 
ASIAM INTERNATIONAL (TAIWAN) NEW YORK POWER AUTHORITY
INCORPORATED JA FITZPATRICK NUCLEAR PLANT
4F-3, NO.333, FU-HSING N-ROAD P.O. BOX 41
TAIPEI 105 TAIWAN, R.O.C. LYCOMING, NEW YORK 13093
 
CONTROL COMPONENTS, INC. NORTHEAST NUCLEAR ENERGY
22591 AVENIDA EMPRESA NUSCO-VENDOR INFORMATION
RANCHO SANTA MARGARITA, COORDINATOR
CALIFORNIA 92688 MAIL STOP W-219
P.O. BOX 270
HARTFORD, CONNECTICUT 06141-0270
 
OMAHA PUBLIC POWER DISTRICT ALABAMA POWER COMPANY
FORT CALHOUN STATION SOUTHERN NUCLEAR OPERATING COMPANY
FORT CALHOUN, NEBRASKA 68023 MANAGER - SAER
BIRMINGHAM, ALABAMA 35201
 
DETROIT EDISON COMPANY GPU NUCLEAR CORPORATION
6400 NORTH DIXIE HIGHWAY C/O GPU SERVICE CORPORATION
NEWPORT, MICHIGAN 48183 1001 BROAD STREET
ATTENTION: NUCLEAR JOHNSTOWN, PENNSYLVANIA 15906
ENGINEERING

Corrective Action

Since the date of discovery, design alternatives continue to be evaluated, The methods under investigation for corrective action will be mechanical in nature. ITT Conoflow expects to conclude the analysis phase of our investigation by 12/15/00 arid currently estimate that replacement units would be available by 2/15/01.

Advice to Customers

Each site location should analyze their system and corresponding potential for failure with regard to this notification. In the absence of a seismic event resulting in radiation and/or a steam line break, we do not believe this unit will cause an operational problem.

Please note that the product qualification was simulated for a ten, (10) year design life. Those units with a service life of ten, (10) years or more should not be considered qualified.

Individual customers will be advised by letter when replacement IEEE I/P transducers are available.

Page Last Reviewed/Updated Thursday, March 29, 2012