ML20129G987

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Third Interim Deficiency Rept Re Time Span for Temp Switch Response.Initially Reported on 831227.Deficient American Switch Co Switches Replaced W/Fenwal Model 18023-7 Switches. Next Rept Re Redesignated Deficiency Expected by 860219
ML20129G987
Person / Time
Site: Bellefonte  Tennessee Valley Authority icon.png
Issue date: 05/23/1985
From: Hufham J
TENNESSEE VALLEY AUTHORITY
To: Grace J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8506070433
Download: ML20129G987 (1)


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TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 37401 Il00 0 e c 3 pstnut Street Tower II g

M y0 May 23,1985 BLRD-504[8h 03 BLRD-50439/84 -03 U.S. Nuclear Regulatory Canminion Reglon II Attn:

Dr. J. Nelscn Grace, RegLonal Adninistrator 101 Marietta Street, NW, Sitte 2900 Atlanta, GeorgLa 30323

Dear D r. G race:

BELLEFOITE NUCLEAR PLANT INITS 1 AND 2 - TIE SP AN FOR TEWERTIRE SWIT01 RESPWSE - BLRD-50438/84 -03, BLRD-5043944 THIRD IIMERIM IEPORT The subject deficiency was initially reported to HRC-0IE Impector C. A. Julian on Deoember 27, 1983 in accordanoe with 10 CFR 50.55(e) as NG BLN BLP 8334.

This was followed by our interim reports dated Jantary 25 and Atsust 8, 1984.

Below is otr third interim report.

For administrative reasons, TV A has superseied nonconfonnanoe report (Nm)

BLN BIP 8334 with NG BLN EB 8401. Additional infonnation will be provided on BLN EB 8401 on or about Fetrtary 19, 1986.

TV A has rep 1 aced the deficient AS(D switches with rast-aoting, environmentally qualified Fenwal model 18023-7 temperattre switches and is in the process of reevaltating the environmental grofile for the auxiliary steana line break event based on the operating characteristics of the new switch.

If you have any questions, please get in touch wLth R. H. Shell at FTS 858 G688.

Very truly yours,

TENNESSEE VALLEY AUrHORITY J. W. Huf han, M ana pr Licensing and Regulatiens cc:

Mr. Janes Taylor, Director Office of Insgmotion and Enforcement U.S. Nuclear Regulatory Camissicn Was hington, D.C. 20555 l

Recorch Center Irntitute of Nuclear Power Operati(ns 1100 circle 75 Parkway, aatte 1500 l

Atlanta, Georgia 30339 m.aMR5%1r

'Ofticial Co#

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I An Equal Opportunity Employer

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