ML20087J490

Supplemental Interrogatories to Util Re Emergency Diesel Contentions Admitted by Aslb.Certificate of Svc Encl.Related Correspondence

ML20087J490
Person / Time
Site:	Catawba
Issue date:	03/19/1984
From:	Jeffrey Riley CAROLINA ENVIRONMENTAL STUDY GROUP
To:	DUKE POWER CO.
References
CON-DSB-47 NUDOCS 8403220237
Download: ML20087J490 (5)

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a 4( , RELAMD CORRESPONDENCE UNITED STATES OF AMERICA '

NUCLEAR REGULATORY COMMISSION b

BEFORE THE ATOMIC SAFETY AND LICENSING gg In the Matter of ) 34 g4g22

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DUKE POWER COMPANY, Et al. ) Docket, Bas. 50-413M0:S'9

) s5Ef'f_;5 4 (Cataaba Nuclear Station, ) yyj s # 3;,*,

Units 1 and 2)

)- - i CESG'S INTERRCGATORIES TO DUKE POWER REGARDING EMERGENCY DIESEL COTENTIONS ADMITTED BY ATOMIC SAFETY AND LICENSING BOARD i

These interrogatoriet are supplemental to those filed jointly for CESG and Palmetto Alliance re the admitted diesel generator contentions.

Crankshaft Contention

1. At the time Catawba DG pistons were removed for further heat treatment of piston skirts, were all crankshaft fillets examined for cracks? What examination methods were used?

! 2. Are the manufacturing drawings, specifications, and metallurdy identical for the Grand Gulf and the Catawba DGa? If not define the differences. Provide serial numbers and dates of- '

manufacture for both.

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ASLB's Contention ,

3 In regard to the Nhc staff's questinns of Dece=ber 30,-1983, specifically DPC's response to 8., describe fully and completely the failure of the turbo bearing both physically and functionally.

4 What was wrong with the replaced governor box, response to 8?

5 In view of the response EL40114D/16, define " actual reliability" in the context. What incidents would have a significant bearing ,

on the actual reliability? j I

6. Would a significantly failed turbocharger' bearing make a Catawba DG inoperable? What would the consequence be of a seized turbocharger shaft? What effect would an inoperative turbocharger  !

have on the power output of a Catawba DG--in quhatitative terms?

7 Are there any failure modes of a governor box which would interfere. -

with DG reliability? If so, what are they? ,

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8. Regarding response 9., what-additional tests and inspections 1 willbe performed on DGs 1B, 2A, and 2E? I j 8403220P37 840319 PDR ADOCK 05000413

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9. What design and operability requirements were specifically imposed on TDI in the purchase contract in regard to reliability and durability? Define reliability and operability as you use these terms. If you use the term durability, please define.

10. Did Duke know of the history of TDI diesel performance on the Alaska ferry, Columbia, at the time of executing the purchase l contract with TDI? If not, when did DPC learn? I

11. Did TDI offer the state of Alaska as a reference during the procurement stage? Did TDI offer references? If so, please i list.

12. Regarding response 12.to Staff; what Catawba DG items were repaired? Used-as-is?

13 Define " valid test reliability" as it is used. What assurance is there that 98% valid test reliability will inaure safe shutdown?

14 Are the Grand Gulf DG failures: piston crown separations, piston skirt cracks, fuel line failures, cylinder head cracks, ,

turbocharger problems, push rod cracks, air starter valve problems and a generator short, consistent with the reliability required for a safe-shutdown device?

15 Regarding response to 12., how do you reconcile the problems encountered with TDI DGs with your conclusion that "the TDI generators were reliable"? Was this the uniform, unqualified response of those you queried? Specify each individual responding for each concern by name and by job title.

16. Do you concur with the conclusion referenced in 15. foregoing?

17 Has DPC at any time talked or corresponded with a mechanical supervisor or superintendent or engineer of the state of Alaska in connection with the performance of TDI diesels on the MV Columbia? the operators of the MV Pride of Texas? of the MV E. H. Gott? If so, provide the complete record of these opmmunications.

16. Is it possible to assemble individual components each satisfactory in regard to QC into an unsatisfactory diesel engine?

19. Provide the code criteria, all applicable, ror diesel cylinder heads; the relation between HP per cubic inch and cylinder head specifications; ditto piston crowns and piston skirts. ,

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20. Were the 1097 hours0.0127 days <br />0.305 hours <br />0.00181 weeks <br />4.174085e-4 months <br /> rsm by Grand Gulf Div. I DG trouble free?

Was operation at any time interupted by malfunction or anticipated malfunction and increased damage? Please list.

21. Same question as 20. for Div. II Grand Gulf DG. For both, o provide load levels during tests. I

22. What parts of Catawba DG 1A were dye penetrant tested at the time of removing piston skirts for further heat treatment?

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23 In reference to 12(4)7, what corrective action has been taken in regard to cylinder head cracks? Will cylinder head cracks i l

be dealt with on a case-by-case basis or generiomlly?

24 What are the relations of Moser lines, yellow and red buses, I and tne plant's 22 kV bus. Please provide diagram.

25 How were the faults that developed as a result of the Moser pole failure cleared?

26. Did DPC require preventive maintenance programs of TDI at.the

time of procurement? Was such a requirement absent from the purchase specifications?

27 During a blackout how many DGs are required for the shutdown of one nucisar unit? During a LOCA?

28. Is there a program for regular inspections of the DGs on some predetermined basis? If so what are the intervals and what l are the inspection procedures?

29. What criteria were used to decide that a piston skirt required a second heat treatment from TDI? How many such were there?

Respectfully submitted, f,w a < L .

1Fae L. Riley to ESG March 19, 1984 l

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i UCf;fl'5 UNITED STATES OF AMERICA i NUCLEAR REGULATORY COMMISSION

'84 HAR 22 g0:52 i BEFORE THE ATOMIC SAFETY AND LICENSING BOARD  :

1 1 LF....

4 "ggg .

l In the Matter of ) iN Ch

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i DUKE POWER COMPANY, et al. ) Docket No. 50-413

) 50-414 (Catawba Nuclear Station )

Units I and 2) )

i-AFFIRMATION OF SERVICE i

i I hereby affirm that copies if "CESG'S INTERRROGATORIES TO DUKE [

POWER REGARDING EMERGENCY DIESEL CONTENTIONS ADMITTED BY ATOMIC

! SAFETY AND LICENSING BOARD" ih the above captioned tratter were

served on the following by deposit in the~ United States mail this

! 19th day of March, 1984, with the exception of the copy to Mr. Ron i

Shearin which was hand-delivered on this date:

I James L. Kelley, Chairman Richard P. Wilson, Esq.

l Atomic Safety and Licensing Board Assistant Attorney General i Panel State of South Carolina

( U. S. Nuclear Regulatory Commission P. O. Box 11549_ _ __ _

l Washington, D. C. 20555 Columbia, South Carolina 29211 l

l Dr. Paul W. Purdom Robert Guild, Esq.

l 235. Columbia Drive Attorney-at-Law

i. Decatur, Georgia 30030 P. O. Box 12097

! Charleston, South Carolina 29412 Dr. Richard F. Foster

• Palmetto Alliance P. O. Box 4263 2135 1/2 Devine Street Sunriver, Oregon 97702 Columbia, South Carolina 29205 Chairman Ron Shearin, Esq.,

Atomic Safety and Licensin9 Duke Power Company Board Panel P. O. Box 33169 U. S. Nuclear Regulatory Commission Charlotte, R. C. 282h2 Washington, D.C. 20555 Chairman Atomic Safety and Licensing

! Appeal Board l U. S. Nuclear Regulatory Commission l Washington, D.C. 20555 t

George E. Johnson, Esq. Karen E. Long Office of the Executive Legal Assistant Attorney General Director N. C. Department of Justice  ;

U. S. Nuclear Regulatory Commission. P. O. Box 629 1 Washington, D.C. 20555 Raleigh, North Carolina 27602 Scott Stucky Don R. Willard Docketing and Service Section Mecklenburg County U. S. Nuclear Regulatory Department of Environmental Commission Health Washington, D.C. 20555 1200 Blythe Boulevard Charlotte, North Carolina 28203 Michael J. McGarry, III, Esq.

Bishop, Liberman, et al 1200 Seventeenth Street, N.W. h Washington, D.C. 20036 ) //,

Jesse L. Riley

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