ML19331C246
| ML19331C246 | |
| Person / Time | |
|---|---|
| Site: | Marble Hill |
| Issue date: | 07/28/1980 |
| From: | Fiorelli G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Shields S PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA |
| References | |
| NUDOCS 8008140448 | |
| Download: ML19331C246 (1) | |
Text
- p a rti g4 UNITED STATES 8 " 3.,,,
NUCLEAR REGULATORY COMMISSION h
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.I REGION 111 799 ROOSEVELT ROAD gg,*....,/
GLEN ELLYN. ILLINOIS 60137 IJUL 2 8 $80-Docket No. 50-546 Docket No. 50-547 Public Service of Indiana ATTN:
Mr. S. W. Shields Senior Vice President Nuclear Division 1000 East Main Street Plainfield, IN 46168 Gentlemen:
Thank you for your interim report dated July 21, 1980, pursuant. to 10 CFR 50.55(e) regarding Westinghouse Type W-2 switches. We will review your final report on this matter upon receipt.
Your cooperation with us is appreciated.
Sincerely, p;m#A '
G. Fiorelli, Chief Reactor Construction and Engineering Support Branch cc: Director, RCI/IE Director, AE0D Chief, OEB/MPA IE Files Mr. G. N. Brown, Project Director cc w/ltr dtd 7/21/80:
C. Kammerer, CA H. Thornburg, IE Central Files PDR Local PDR NSIC TIC LeBoeuf, Lamb, Leiby & MacRae Mr. Dave Martin, Office of Attorney General Mr. John R. Galloway, Staff Director, Environment, Energy and Natural Resources Subcommittee S
8008140 '/4/7
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PUBLIC SERVICE INDIANA S. W. Shields Sen.or Vice Presdent.
Nuclear Drvision July 21, 1980 Mr. James G. Keppler, Director Docket Nos.:
STN 50-546 U. S. Nuc! ear Regulatory Commission STN 50-547 Region III Construction Permit Nos.:
799 Roosevelt Road CPPR - 170 Glen Ellyn, Illinois 60137 CPPR - 171 i
Marble Hill Nuclear Generating Station - Units 1 and 2
Dear Mr. Keppler:
On June 19, 1980, Mr. T. D. Geib of Public Service Company of Indiana, Inc., (PSI) notified your office of a potentially reportable item as required by 10CFR 50.55(e). The same item was also reported by Westinghouse under 10CFR 21 (see letter no. NS-TMA-2264, dated June 18, 1980, to the Director, Office of Inspection and Enforcement).
Westinghouse identified intermittent contact operation as a problem occuring in their Type W-2 switch. This switch is used in certain safeguards systems on most Westinghouse plants and the reported problem affects the automatic actuation function of the witch.
Westinghouse is presently studying the intermittent contact operation of Type W-2 switches and will provide their findings to utility l
owners as they become available. PSI will then consider these findings and determine what corrective action, if any, is necesury.
This letter is intended to fulfill the requirements of an interim report l
as defined in 10CFR 50.55(e). A final report will be submitted on or before November 21, 1980. If you have any quescions on this report, please feel free to contact me.
Sincerely,
.. W. Shields TDG/cg JUL 2 31980 C
D P.O. Box 190, New Washington, Indiana 47162 812. 293.4441 f00
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.r Pusuc SERVICE INDIANA Letter: James G. Kappler July 21, 1980 Director of Inspection and Enforcement cc:
U. S. Nuclear Regulatory Comission Washington, D. C.
20555 E. R. Schweibinz, P. E.
J. J. Harrison b
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