ML19331C430

Fourth Interim Deficiency Rept Re Excessive Output Fluctuations of Foxboro Instrumentation.Permanent Solution Not Yet Found.Eventual Replacement of Instruments Containing Magnetic Amplifiers Considered

ML19331C430
Person / Time
Site:	Sequoyah
Issue date:	08/11/1980
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:
References
10CFR-050.55E, NCR-SWP-79-S-5, NUDOCS 8008180338
Download: ML19331C430 (1)

Text

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e TENNESSEE VALLEY AUTHORITY CH ATTANCOGA. TENNESSEE 37101

!;00 Chestnut Street Tcwor II Auaust 11, 1980 kir. Ja=ss P. 'Reilly, Director Office of Inspc icn and Enforcement U.S. Nuclear Regu. tory Cor:xnission Region II - Suite 3 0 101 Marietta Street Atlanta, Gecrgia 3030;

Dear .%r. C'Reilly:

SCOUOYAH UUCLE.'.R PLAIiT UNITS 1 AND 2 - EXCESSIVE CUTPUT FLUCTUATIONS OF FOXECEO INSTRUENTATION - liCR S'4P-79-S FOURTH IN ERIM F2PCRT The sucject deficiency ms initially reported to NRC-0!E Inspector M. J. Gcuse <n August 28, 1979, in acordance with 10 CFR 50.55(e). Interi=

repcrts were submitted cr. September 26, 1979, Octcher 30, 1979, and February 5, 1980.

TVA and 'Jestinghouse have not yet arrived at a permanent solution to this problem. .3averal optiens are being considered, including the event *ml replacement of the Fcxboro instruments that contain n:agnetic acplifiers.

~4e onpcet to submit a repcet on the per anent solutien by February 9,1981.

If you h:.ve any questions concern r.3 this catter, pisase get in touch with D. L. Lambert at FTS 857-2581.

Very truly yours, TE!CiESSEE VALLEY AUTHORITY L. M. Mills, !!anager Nuclear Regulation and Safety i

l

! cc: Mr. Victor Stallo, Jr., DirectcM I Office of Inspection and Enforcement /f U.S. Nuclear Regulatory Censnissien S

Washington, DC 20555 IO I

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