Part 21 Report - 2000-211
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 |
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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 |
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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 |
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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 |
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OMAHA PUBLIC POWER DISTRICT | ALABAMA POWER COMPANY |
FORT CALHOUN STATION | SOUTHERN NUCLEAR OPERATING COMPANY |
FORT CALHOUN, NEBRASKA 68023 | MANAGER - SAER |
| BIRMINGHAM, ALABAMA 35201 |
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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 Wednesday, March 24, 2021