ML19347E057

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Responds to IE Bulletin 81-01,Revision 1.INC Mechanical Snubbers Have Been Replaced W/Either Bergen-Paterson Hydraulic Snubbers or Pacific-Scientific Mechanical Snubbers.Completion of Response Expected by 810504
ML19347E057
Person / Time
Site: Zimmer
Issue date: 04/01/1981
From: Borgmann E
CINCINNATI GAS & ELECTRIC CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
IEB-81-01, IEB-81-1, NUDOCS 8104150127
Download: ML19347E057 (1)


Text

K' THE CINCINNATI GAS & ELECTRIC COMPANY as'- c CINCINN ATI. OHIO 4 5201 April 1, 1981 C. A. DORG M AN N

.4Non vsCE pntsiDENT g United States Nuclear Regulatory Commission Office of Inspection and Enforcement s[

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Region III 799 Roosevelt Road [6['

y h4 Glen Ellyn, IL. 60137 "u,Apg y 0193;m -

c M s % "ca Y Attn: Mr. James G. Keppler Regional Director k.k 4 ,\ *j N/g #

Re: WM. H. ZIMMER NUCLEAR POWER STATION - UNIT 1 IE BULLETIN 81-01, REV. 1, DOCKET NO. 50-358 W.O. 57300, JOB E-5590 Gentlemen:

In response to IE Bulletin 81-01, Rev. 1, concerning INC Mechanical Snubbers, please be advised that during the first quarter of 1979 the Zimmer Proj ect initiated a program to climinate all INC Snubbers. The Zimmer Plant Architect / Engineer, Sargent 4 Lundy sub-sequently revised or voided all pipe support drawings which call for the installation of INC Mechanical Snubbers.

The INC units have been replaced with either Bergen-Paterson hydraulic snubbers or Pacific-Scientific mechanical snubbers. Out of a total of approximately 140 INC Snubbers originally released by Sargent G Lundy less than 10 units are installed at the present time. Those 10 remaining units will be removed in accordance with Zimmer field cons-truction procedures. No INC Mechanical Snubbers will remain in place at the Zimmer Power Station at the completion of Construction.

This is an interim response to your letter. The completion of the response will be provided by May 4, 1981.

Very truly yours,  ;

THE CINCINNATI GAS 6 ELECTRIC COMPANY

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E. A. Borgmann DJF/jb cc: J. D. Flynn W. W. Schwiers J. R. Schott S. G. Salay R. F. Scheibel H. C. Brinkmann F. T. Daniels W. D. Waymire (pink) 0 8104150 M