ML20116F075

Application for Amend to License NPF-30,consisting of Revision to TS Table 4.3-1,Note 5 to Reflect That Integral Bias Curves Rather than Detector Plateau Curves

ML20116F075
Person / Time
Site:	Callaway
Issue date:	11/03/1992
From:	Schnell D UNION ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20116F077	List: ML20116F075 ML20116F085
References
ULNRC-2718, NUDOCS 9211100161
Download: ML20116F075 (4)

Text

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November 3, 1992 U.S.-Nuclear Regulatory Commission Attn Document Control Desk Mail Station P1-137 Washington, D.C. 20555 ULNRC-2718 Gentlemen:

CALLAWAY PLANT '

DOCKET NUMBER 50-483 REVISION TO TECHNICAL SPECIFICATION TABLE 4.3-1,

" REACTOR TRIP SYSTEM INSTRUMENTATION SURVEILLANCE REOUIREMENTS" -

Union Electric Company .lerewith transmits an application for amendment to Facility Operating License Number NPF-30 for the Callaway Plant. This amendment application requests a revision to Technical Specification-Table 4.3-1, Note 5, to reflect that integral bias curves,.

rather than detector plateau curves, are ased to calibrate t'N source range instrumentation. Intermediate Range and Power Range channels will continue to-be calibrated using detector plateau curves.

The low-noise preamplifiers provided for the -

Callaway Plant Nuclear Instrumentation System do not accommodate the traditional plateau curve. Using the integral bias curve is a more inclusive calibration than the

. plateau curve and provides the same information, i.e., the high voltage operating point.

The CO.laway Plant On-Site Review Committee and.the Nuclear Safety Review Board have reviewed.and approved this amendment application. Attachments 1 through 4 provide the ,

Technical Specification changes, Safety Evaluation, Significant Hazards Evaluation, and Environmental Consideration, respectively. It has been determined that this amendment application does not involve any unreviewed '

safety question as defined in 10 CFR 50.59, nor a n ri m 4 nn- s ;T 9211100161' 921103- '

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significant hazard consideration as determined per 10 CFR-50.92, and-meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22 (c) (9) .

If you have any questions regarding this amendment application, please contact us.

Very truly yours,

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1 Donald F. Schnell GAC/ dis '

Attachments: 1. Technical Specification Changes

2. Safety Evaluatior.

3. Significant Hazards Evaluation

4. Environmental Consideration  ;

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l STA'"E OF MISSOURI )

) sS CITY OF ST. LOUIS )

Donald F. Schnell, of lawful age, being first duly sworn upon oath says that he is Senior Vice President-Nuclear and an ofticer of Union Electric Company; that he has read the foregoing document and knows the content thereof; that he has executed the same.for and un behalf of said company with full power and authority to do so; an.i that the facts therein stated are true and correct to the best of his knowledge, information and M ief.  ;

By /~ . ,4u/

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onald F. Schnell Senior Vice President NucleTr SUBSCRIBED and sworn to before me this 84 b ~'~~ day. -

i of ~72 A ,v. .n 4< z e , 1992.

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E;ARGARA / PIM I NOIAny PUBtic. STATE OF MISSOURI WY 00Mv1S90N EXPin(s ArRa 22, ISH '

ST. LOUIS COUNN -

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-l cc: T. A. Baxter, Esq.

Shaw, Pittman, Potts & Trowbridge ,

2300 N. Street, N.W.

Washington, D.C. 20037 Dr. J. O. Cermak CFA, Inc.

18225-A Flower Hill Way .

Galthersburg, MD 20879-5334 L. Robert Greger Chief, Reactor Project Branch 1 U.3. Nuclear Regulatory Commission Region III

-799 Roosevelt Road '

Glen Ellyn, Illinois 60137 Bruce Bartlett Callaway Resident Office U.S. Nuclear Regulatory Commission RR#1 Steedman, Missouri 65077 L. R. Wharton (2s Office of Nuclear Reactor Regulation U.S. Nuclear. Regulatory Commission 1 White Flint, North, Mail stop 13E21 11555-Rockville Pike Rockville,. MD 20852 Manager, Electric Department Missouri Public Service Commission D.O. Box 360 Jefferson City, MO 65102 ,

Ron Kucera Department of Natural Resources P.O. Box 176 4 Jefferson City, MO 65102

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