ML20129G379
| ML20129G379 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 05/20/1985 |
| From: | Martin T Public Service Enterprise Group |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 8506070244 | |
| Download: ML20129G379 (2) | |
Text
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Company Thomas J. Martin 80 Park Plaza, Newark, NJ 07101 201-430 8316 Mailing Address-P.O. Cox 570, Newark NJ 07101 Vice President Engineering and Construction May 20, 1985 d'
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Dr. Thomas E. Murley, Administrator U.
S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussia, Pennsylvania 19406
Dear Dr. Murley:
POTENTIAL CONSTRUCTION DEFICIENCY TOBAR PRESSURE TRANSMITTERS HOPE CREEK GENERATING STATION On April ll, 1985, a verbal report was made to Region I, Office of Inspection and Enforcement representative, Mr.
J.
Strosnider, advising of a potentially significant construc-tion deficiency concerning pressure transmitters supplied by TOBAR, Inc.
The following interim report is provided in accordance with 10CFR50.55 (e).
Tobar (formerly Westinghouse) model 32, series 2 pressure transmitters purchased from TOBAR, Inc. of Tempe, Arizona, have exhibited calibration deviations and output signal drifts that exceed the manufacturer's published tolerances.
One installed Tobar transmitter, that had been calibrated two (2) months earlier, no longer performed with the specified accuracy and required recalibration.
Also, during startup calibration, a Tobar transmitter exhibited output signal drift when subjected to warm and cool air currents directly on the amplifier assembly.
Startup Deviation Report No. ZC-0017 and Nonconformance Report No. 7390 have been issued to document and control the suspect transmitters.
Our Architect / Engineer and Constructor, Bechtel, is investigating this concern with the manufacturer.
54 PDR
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c-Dr.
T. E. Murley 2
5/20/85
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Based upon committed reporting dates provided by Bechtel, we anticipate providing you with a further report on this' matter by June 28, 1985.
Very truly yours,
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C Office of Inspection and Enforcement Division of Reactor Construction Inspection Washington, D. C.
20555 NRC Resident Inspector - Hope Creek P. O. Box 241 Hancocks Bridge, NJ 08038 Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, GA 30339
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