ML20005A866

Interim Deficiency Rept Re ITT-Grinnell Use of Brass or Nonhardened Steel Washers in Lieu of Hardened Steel Washers in Mechanical Shock Suppressor Assembly,Initially Reported in 810601 Telcon.Evaluation Underway

ML20005A866
Person / Time
Site:	San Onofre
Issue date:	06/01/1981
From:	Nunn D SOUTHERN CALIFORNIA EDISON CO.
To:	Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8107010402
Download: ML20005A866 (1)

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Southern California Edison Company _5~ ,:::

P. O. BOX 800 2 244 W ALNUT GROVE ANENU E ROSEME AD. C ALIFORNI A 91770

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June 1, 1981 P W

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p, INSFECTicti '4  ?

Mr. R. H. Engelken, Director \ , ammes ,[

Office of Inspection and Enforcement '

U. S. Nuclear Regulatory Commission q\ .;;,

Region V gd% <hs Suite 202, Walnut Creek Plaza 1990 North California Boulevar.1 94506 b(b1i 9 yJr. 30 M N2

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Walnut Creek, California u.h ## E w W ross ^;

Dear Mr. Engelken:

- ,0 Subj ect: Docket Nos. 50 361 and 50-362 4 co San Onofre Nurlear Generating Station, Units 3 This letter confirms verbal nc,tification on June 1, 1981 of a condition discovered in construction which is con-sidered potentially reportable in accordance with 10CFR50.55-(e). It involves the use of brass or non-hardened steel washers by the supplier, ITT-Grinnell, in the assembly of cer-tain mechanical shock suporessors in lieu of hardened steel washers as required by ASME BPC Code,Section III, Subsection NF, paragraph NF-4724, 1974 and 1977 Editions.

We are performing an evaluation of this potential defici:ncy and will keep you advised of our determinations. A l

report will be submitted in accordance with 10CFR50.55(e) if this condition is determined to be reportable. If you have any questions or require additionable information, please let me know.

Very truly ours, I

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cc: Dr. L. T. Papay R. J. Pate (NRC, San Onofre Units 2 and 3)

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8107010404 BI- 97 I

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