ML20010F041

Responds to Request for Addl Info Re FSAR Questions 032.42, 43,44 & 45.Questions Cannot Be Fully Answered by 810904,due to Extensive Review Necessary to Provide Complete Response. Review Efforts & Anticipated Completion Schedule Presented

ML20010F041
Person / Time
Site:	South Texas
Issue date:	09/02/1981
From:	Goldberg J HOUSTON LIGHTING & POWER CO.
To:	Tedesco R Office of Nuclear Reactor Regulation
References
ST-HL-AE-719, NUDOCS 8109090298
Download: ML20010F041 (3)

Text

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The Light c o m P u y ii"""">.ixi"'"x&i" er ito.ii"'i7"o ii"""" ><x"'<<""> <7's>228-"2ii x

September 2, 1981 ST-HL-AE-719 SFN: C-0510 g.\\\\71 m

q Mr. Robert L. Tedesco b

ju Assistant Director for Licensing

%m@M8 g Division of Licensing H;

(J Nuclear Regulatory Commission s6 Washington, D. C.

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Dear fir. Tedescr:

South Texas Project Units 182 Docket Nos. STN 50-498, STN 50-499 Response to Request for Additional Information - FSAR Ouestions 032.42, 43, 44, and 45 Houston Lighting A Power Company has received your request for additional information regarding the instrumentation and control systems for the South Texas Project.

Although a response was requested to be provided within 120 days of our receipt of your letter (i.e., by September 4,1981), the questions can not be fully answerei by that date, due primarily to the txcensive review that is necessary to provide a complete response.

A suwiary of the review efforts and the anticipated schedule for their completion is given below:

Question 032.42:

Loss of Non-Class IE Instrumentation and Control Power System Bus During Power Operation STP design has not yet been completed in this area.

A partial response to this question will be provided in an amendment to the STP FSAR in December,1981.

Question 032.43:

Engineered Safety Features (ESF) Reset Controls The STP design is still being reviewed regarding this question. The response to this ouestion is currently expected to be provided in an amendment to the STP FSAR in December, 1981.

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September 2, 1981-ST-HL-AE-719 SFN: C-0510' Page 2 l

Question 032.44: Qualification of Control Systems The STP design is still being reviewed regarding -this question. Depending upon the scope of the review necessary to provide a response, the results of' the review will be submitted in an amendment to the STP FSAR between June,1982,. a'.J June,1983.

Question 032.45: Control System Failures The STP design is still being reviewed regarding this.questfor. A response is currently expected to be provided in an amendment to the STP FSAR in July, 1982.

-If there are any further delays in responding to these questions, you will be notified accordingly.

If you desire additional information, please contact Mr. Michael E. Powell at (713) 676-8592.

Very truly yours,

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J. H. Gc1dberg Vice President Nuclear Engineering & Construction PLW/amj l

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Ilouston i.ighting & Power Compans cc:

J. H. Goldberg September 2, 1981 J. G. Dewease ST-HL-AE-719 D. G. Barker SFN:

C-0510 C. G. Robertson Page 3 Howard Pyle R. L. Waldrop H. R. Dean D. R. Beeth J. D. Parsons J. W. Williams J. W. Briskin J. E. Geiger STP RMS H. S. Phillips (NRC)

J. O. Read (Read-Poland, Inc.)

M. D. Schwarz (Baker & Botts)

R. Gordon Gooch (Baker & Bottr)

J. R. Newman (Lowerstein, Newman, Reis, & Axelrad)

Director, Of fice of Inspection & Enforcement Nuclear Regulatory Commission Washington, D. C. 20555 R. L. Range /G. W. Muench Charles Bechhoefer, Esquire Central Power & Light Company Chairman, Atomic Safety & Licensing Board P. O. Box 2121 U. S. Nuclear Regulatory Commission Corpus Christi, Texas 78403 Washington, D. C.

20555 R. L. Hancock/G. Pokorny Dr. James C. Lamb, III City of Austin 313 Woodhaven Road P. O. Box 1088 Chapel Hill, North Carolina 27514 Austin, Texas 78767 J. B. Poston/A. vonRosenberg Mr. Ernest E. Hill City Public Service Board Lawrence Livermore Laboratory P. O. Box 1771 University of California San Antonio, Texas 78296 P. O. Box 808, L-46 Livermore, California 94550 Brian E. Berwick, Esquire William S. Jordan, III Assistant Attorney for the State of Texas Harmon & Weiss P. O. Box 12548 1725 I Street, N. W.

Capitol Station Suite 506 Austin, Texas 78711 Washington, D. C.

20006 Lanny Sinkin Citizens fcr Equitable Utilities, Inc.

Citizens Concerned About Nuclear Power c/o Ms. Peggy Buchorn 5106 Casa Oro Route 1, Box 1684 San Antonio, Texas 78233 Brazoria, Texas 77422 Jay Gutierrez, Esquire Hearing Attorney Office of the Executive Legal Director U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Revision Date 7-28-81