ML20041E500

Interim Rept Re Defective Agastat E7000 Series Relays, Initially Reported 820205.Util Is Determining Location of Relays & Will Return Relays to Control Products Div.Next Rept Expected by 820702

ML20041E500
Person / Time
Site:	Fermi
Issue date:	03/05/1982
From:	Wells D DETROIT EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, EF2-57148, NUDOCS 8203110016
Download: ML20041E500 (2)

Text

Donald A. Wells U

we.vy G.,s:t A, san Detroit

"" ~

=d* son m=cond Avenue 2000 Se i

m-m March 5, 1982 e-EF2-57148 GIVn g

N48 Mr. James G. Keppler, Director 7 U

%gg Region til 7

8 U. S. Nuclear Regulatory Commission V

799 Roosevelt Road Glen Ellyn, IL 60137 g

Subject:

Interim Report of 10CFR50.55(e) Item on Defective Agastat Relays

(#54)

On February 5, 1982, Detroit Edison's Mr. H. A. Walker, Supervisor-Construction Quality Assurance, telephoned Mr. J. Neisler of NRC-Region 111, to report on a problem with defective Agastat Relays.

Detroit Edison had received notification from Control Products Division of Amerace Corporation that Agastat E7000 Series timing relays supplied to the Fermi 2 Site were defective. This problem had been reported by Amerace Corporation to the NRC per 10CFR21 requirements.

Thepneumatictimingdiaphragmsmanufacturedbyonesupplierexhibitedj bleed-out of a fluid substance which affected the time delay of the relay.

Relays containing these diaphragms were about 20% of the production between the 24th week of 1981 and the 3rd week of 1982.

Detroit Edison is presently determining the location of these relays, and will return them to Control Products Division as requested.

Another report on this item, either interim or final, is scheduled to be sent to you on or before July 2, 1982.

If you have questions con-cerning this matter, please contact Mr. H. A. Walker, Supervisor-Construction Quality Assurance.

Very truly yours, i

m L

C' A HAW:mb 8203110016 820305 PDR ADOCK 05000341 WR 8W ZE4754

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Mr. James G. Keppler March 5, 1982 Page Two EF2-57148 cc:

Mr. Victor Stello, Jr., Director Office of Inspection and Enforcement Division of Reactor Inspection Programs U. S. Nuclear Regulatory Commission Washington, DC 20555 Mr. Bruce Little, Resident inspector U. S.

Nuclear Regulatory Commission Resident inspector's Office 6450 North Dixic liighway Newport, MI 48166 l