ML20031F247
| ML20031F247 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, Zion  |
| Issue date: | 10/14/1981 |
| From: | Norelius C Office of Nuclear Reactor Regulation |
| To: | Reed C COMMONWEALTH EDISON CO. |
| References | |
| IEB-79-14, NUDOCS 8110190417 | |
| Download: ML20031F247 (1) | |
Text
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OCT 1 4 1981
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Docket Nos. 50-237, 50-249; N
50-254, 50-265; 50-295, 50-304 6
0CTI 61981* 'il Commonwealth Edison Company ma.m m '
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ATTN:
Mr. Cordell Reed V
p Vice President Post Office Box 767 4
p Chicago, IL 60690
'S Gentlemen:
Thank you for your letter dated September 25, 1981, informing us of your evaluation results of the RHR system.
Please provide this office t'.e following additional information:
1.
Stress calculation isometric drawings including all Node numbers in the system.
2.
Node 62 SSE primary stress / Code allowable /IEB 79-14 Operability Limit.
3.
Node 62 OBE primary stress / Code allowable.
Your cooperation with us is appreciated.
Sincerely, dW MW td.'
C. E. Norelius, Director Division of Engineering and Technical Inspection cc:
Louis 0. De1 George, Director of Nuclear Licensing K. Graesser, Station Superintendent
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D. J. Scott, 4 60 Station Superintendent g
N. Kalivianakis, Plant Superintendent cc w/Itr dtd 9/25/81:
DMB/ Document Control Desk (RIDS)
Resident Inspector, RIII Mary Jo Murray, Office of Assistant Attorney General RIII RIII RIII RIII RIII N
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Dante son R
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Commonwealth Edison
'l One First National Pier 3. Chicago, litanois Addr:ss Reply to: Post Office Box 767 Chicago, Illinois 60690 September 25, 1981 Mr. James G. Keppler, Director Directorate of Inspection and Enforcement - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137
Subject:
Dresden Station Units 2 and 3 Quad Cities Station Units 1 and 2 Zion Station Units 1 and 2 Monthly Report of Status of I.R.
Bulletin 79-14 Evaluations (through September 20, 1981)
NRC Docket Nos.50-237/249, 254/265 and 295/304 Reference [a):
J. G. Keppler letter to Cordell Reed dated August 18, 1980.
Dear Mr. Keppler:
In accordance with the request of Reference (a), the following monthly status report is provided for your use regarding the evaluations performed at Dresden, Quad Cities and Zion Stations in response to I.E.Bulletin 79-14.
The content of this report now only addresses systems found to be inoperable per discussions with Messrs.
I.
Yin and D. Daniellson of your office.
At Dresden and Quad Cities, there are no changes since the last status report for I.E.Bulletin 79-14.
At Zion Station, a stress point in the Residual Heat Removal package 2RH-08 has been found to exceed the 2.4 Sh limit.
The overstressed point, which was located in a safety-related portion of the system has the following stress / allowable 2.4 Sh level:
Node 62 39,155/35,880 psi.
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p g O j' SEP 3 01981
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4 J. G. Keppler September 25, 1981 Please address any questions you may have concerning this matter to this office.
Very truly yours, f
?--"=f Thomas J. Rausch Nuclear Licensing Administrator Boiling Water Reactors cc:
Directer, Div. of Reactor Operations Inspection Region III Inspectc; - Dresden Region III Inspector - Quad Cities Region III Inspector - Zion Im 2587N