L-84-157, Application for Amend to License NPF-30,revising Tech Specs to Increase Emergency Diesel Generator Reliability & Prevent Undue Stress & Tear on Generators,Per Generic Ltr 84-15.Fee Paid

Application for Amend to License NPF-30,revising Tech Specs to Increase Emergency Diesel Generator Reliability & Prevent Undue Stress & Tear on Generators,Per Generic Ltr 84-15.Fee Paid

ML20206U846
Person / Time
Site:	Callaway
Issue date:	09/29/1986
From:	Schnell D UNION ELECTRIC CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML20206U853	List: L-84-157, Application for Amend to License NPF-30,revising Tech Specs to Increase Emergency Diesel Generator Reliability & Prevent Undue Stress & Tear on Generators,Per Generic Ltr 84-15.Fee Paid ML20206U910
References
GL-84-15, GL-84-1576, ULNRC-1376, NUDOCS 8610080435
Download: ML20206U846 (5)

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1901 Gratiot Street. St. Louis September 29, 1986 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Denton:

ULNRC- 1376 DOCKET NUMBER 50-483 CALLAWAY PLANT REVISION TO DIESEL GENERATOR TECHNICAL SPECIFICATIONS

References:

1) ULNRC-962, dated 10/30/84 Response to Generic Letter 84-15

2) ULNRC-1356, dated 8/12/86 Response to Generic Letter 83-28 Union Electric Company is transmitting three original and 40 conformed copies of an application for amendment to Facility Operating License No. NPF-30 for Callaway Plant.

This amendment request modifies the Callaway Technical Specification, Section 3/4.8.1.1 with an objective to increase overall emergency diesel generator (D/G) reliability, and to prevent undue stress and wear on the D/G engines. This request includes the following in order to meet this objective:

1. For action statement tests, the initial D/G start test would be performed within either 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, depending on the actual degraded condition.

2. For action statement tests, there would be no repeat starting of the D/G after the initial start test.

3. Fast loadings (60-seconds) would be deleted except for one per 6 months and during the 18-month (refueling) tests. r j

4. For routine surveillance testing, the d 01JA ji $lgg D/G's would be loaded to 60% of continuous rated load (which corresponds f'0I6 4 2Db8N to 3721 kW). gjg -

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5. Engine prelube and other manufacturer recommended warmup procedures would be h,*g /g A for$ 8 i i added'as a requirement for all D/G test g ,g ,

starts. #4//aMt,g* ei 8610080435 860929 .TT Om AVT* iI PDR ADOCK 05000483 P PDR m Mailing Address' P.O. Box 149, St. Louis, MO 63166

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$ 6. The accelerated frequency for routine tests (based upon accumulated test results) would be changed to reduce the amount of accelerated testing by basing the testing on a reliability goal of 0.95 per D/G.

7. An incentive would be added that reduces the failure count to zero and resets the test frequency to a 31 day interval if a major engine overhaul is performed and a defined test series is completed.

These changes are in part a result of the recommendations identified by NRC in Generic Letter 84-15 to improve D/G reliability and were also identified by Union Electric as an

enhancement to safety as indicated in our response to NRC Generic

! Letter 83-28, Items 3.1.3 and 3.2.3 (Reference Letters).

l Enclosures 2 through 5 contain the proposed technical specification pages, the safety evaluation, and the significant hazard evaluation in support of this amendment request. The proposed changes would become effective for Union Electric implementation upon NRC approval. Enclosed is a check for the

$150.00 application fee as required by 10CFR170.21.

Very truly yours, Donald F. Schnell DS/kea

Enclosures:

1 - Application Fee 2 - Proposed Technical Specification Changes -

Marked up 3 - Proposed Technical Specification Changes - Typed 4 - Safety Evaluation 5 - Significant Hazard Evaluation l

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(

STATE OF MISSOURI )

) SS CITY OF ST. LOUIS )

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

By //

'~'on&Id'P.

D Schnell Vice President Nuclear SUBSCRIBED and sworn to before me this 2 9 h day of 7[n/td 198b.

bu w o. kf BARBAR PFA!F

' NOTARY PUBUC, STATE OF MISSOURI MY COMMISSION EXPlRES APRIL 22, 1983  ;

ST. LOUIS COUNTT l

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cc: Gerald Charnoff, Esq.

Shaw, Pittman, Potts & Trowbridge 1800 M. Street, N.W.

Washington, D.C. 20036 Nicholas A. Petrick Executive Director SNUPPS 5 Choke Cherry Road Rockville, Maryland 20850 I

C. W. Hehl Division of Projects and Resident Programs, Chief, Section lA U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 1

Bruce Little Callaway Resident Office i U.S. Nuclear Regulatory Commission RRil Steedman, Missouri 65077 Paul O'Connor

{ Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 316 7920 Norfolk Avenue i

Bethesda, MD 20014 j

l Ron Kucera, Deputy Director

! Department of Natural Resources P.O. Box 176

] Jefferson City, Missouri 65102 Manager, Electric Department Missouri Public Service Commission P.O. Box 360

Jefferson City, MO 65102 i

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e Enclosure 1 to t ULNRC- 1376 APPLICATION FEE - COPY I CHECK NUMBER 604245 206008 UMON ELECTmc COMPANY sr.uuis.Missouar ~Ti s-TO CENTERRE BANK OF KENNETT, MISSOURI i 953,

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