ML20244D277

Provides Followup to Author 850228 Memo Re NRC Insps & Investigations of Tdi,As Related to Facility & Response to Judge Brenner 850306 Question.Tdi Performance Will Continue to Be Monitored

ML20244D277
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	03/22/1985
From:	Berlinger C Office of Nuclear Reactor Regulation
To:	Reis E NRC OFFICE OF THE EXECUTIVE LEGAL DIRECTOR (OELD)
Shared Package
ML20244D281	List: ML20244D277 ML20244D455 ML20246G961 ML20246H018 ML20246H032 ML20246H075
References
FOIA-89-192 NUDOCS 8504090351
Download: ML20244D277 (10)

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. UNITE D sT AT E s NUCLE AR REGULATORY COMMISSION us mt. tov o c rom g, e pa r-

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• March 22,1985

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m l'.EMORANDUM FOR: Edwin J. Reis, Assistant Chief Hearing Counsel 7 Office of the Executive Legal Director frJEl,s '

FROM: Carl H. Berlinger, Group Leader _

TDI Pro.iect l "L Division of Licensing Office of Nuclear Reactor Reguletion

SUBJECT:

TDI INSPECTIONS AND INVESTIGAT]Oh5 The purpose of this memo is to follow up my February 28, 1985, mero to you on tRC inspections and investigations of TDI, as they relate to Shoreher. This is in response to Judge Erenner's cuestion on March 6, 1985, asking whether.

• ...any NRC staff office fis) investigating whether TDI has failed to neet requirements for reporting defects in the past ated whether any such non-disclosure problem has continued as recently as the latter part of 1984?"

(Tr. 26409, et seq). Judge Brenner further stated that he hed recalled seserei earlier lists of TDI product improvements, which lists seened to grow in 1erpth. I do not recall providing such lists to the Board, but the crclesure tc this renc cor,tains seseral letters f rcn TDI which list such p ocuct inpeovenents. As I have stated before, the staff evaluation of the DROR program will teke these irprevements into considerate n.

It is clear, bewever, that the Beerd has a larger concern about the

- pctsitdlity that future product improvements may not be reported to LILCO or the NRC. The Ecard also seers to be concerned about the need for an ireestigation of pessible wrcngdoing by TDI. I would life to address these two concerns seperately.

First, es I stated in ry Februtrj 25 renc,1 en cenfider.t that future crctiers will te reported by TDI. In his Jure 10, 19E3 letter (Enc 1csed),

fir. R. Prett, the Mar,eger of Custerer Service of TDI, committed to previde LILCO with all such information in the future. Additionally, in a Cecerter 15,19E3 letter te the TD! owener's group, Mr. C.S. l'atthews, Vice fresidert Enc Ger eral t'ar:eger cf the Er.g4re and Corpresser Hvisicr l

c# T::. aca'n acreed te orcvide r.uclear cuitc*f rs with the infcrtit'Or TDI l Ac1: 4 5 ftetirdr.t 10 their i.t'e' iticr. Etcause it arretrs ttt 7E: n.ii l ct"*.i"se !? suc? ly ITe re p2rts 10 i et nucle 5r industry, } hatt LC e* a d d ct-d t,y

' e '. v : c r ProgrE- Ertuh (VT:) ir. the Offict cf Ir,!; ection B"d E-A rcene' t

<.al' c*rlieue it perf('- dr!TcCtiP.s Cf~ V E E r e c c r ; *. ,. dt.;tst

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' -?- March ??,1985 Pt ' eel that as e result of the inspections done by 1T0 in the fall of 1983 ,

erd TD]'s interaction with.the Owner's Group end the NRC's 101 Project Group, TDI has become nuch nore sensitive to reporting problems and product improvements. The staff will continue to ronitor TDI's perfomente in this area.

In the area of investigations of wrongdoing,1 must admit that 1 ar.'

et a loss for a response. My job, and that of NRR and IE, has been to detemine whether.TDI engines are satisfactory from the standpoint of ,

safety.- I feel that-1 have done so, and I am confident that a mechanism exists, through the DROR procram and the ongoing LILCO maintenance and surveillance prcgren, to prevent serious technical problems f rom developing which could comprecise the safe operetion of Shoreher. Issues of potential wrongdoing by individuals or by the TD1 organization should not impact plant safety, given the safeguards I have discussed above. Investigations of these issues are donc by the NRC Office of Investigations (01), which reports directly to the Comission. I have discussed several issues with 01 which ney warrant their attention but I have no further infomatien' about the status cf their investigation.- 1 intend to femelly refer,several iters, the technical aspects of which are already known to thy'b6)rd and parties, to 01, via the'EDO, within the next few weeks. I do notjfell/ that the completion of any potential investigations by 01 into these nytturs is recessary to conclude that the TDI engines at Sherehen are adequate to perfom their intended function.

} would also like to reiterate that if the Board has any additieral questions about these metters, I would be pleased to answer ther verbally.

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Carl H. Berlinger, G s p Leader TDI Project l Divisior, of Licensirp L Office of Nuclect Reactor Re;ulation Er. clos ure: As stated cc: B. Heyes, 01 R. Caruse, DL C. Eerlinger, TD1/DL G. 7ech, YFE/IE R. Eorcenici, DELD F. God 6 d, DELD

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.Jirce 10, 1983 Id * #\ S tie A d5 M ,

- Long Island Lighting Cor.pany F.O. But b!B - .

• Ucrth Country Road -

Vading River, hw York 11792

-Attention: Mr. John Kanneyer, EVEC -

Fubject: E -rnency Diesel Gecerators - $/N 71.030/12 ,

As criernted F.aintenance l'retram Cent levt n: ,

Attached picane find (3) copies of a sus;.cested r.sintenance schrdule f. : nueteur standby service diesel ergines. There pages

• aheald be incor,.arated in the %nstruction r.anual and measures enken t o t r:r'et :6: the suggested maintenance operations as a means of c.aintainf ur the c.ngines in peak condition.

' L12co han, previously incorpersted several product improvement (ce31cv0 Je-wanher piston modification, r<hrouded f ue2 injection lines.

Juprovec roeLe.r shaf t bolts, turbo drip-3ubrication, new style cylinder

(-

N' heade..' improved .lacket water peps, etc.) which cont ribute >significantly to intressed re31mbility. With the inecrporation of the necked-devn cylinder head studs (n more f atigue resis, rant design),1.12co's engines

- vill be " state of-the-srt". I forree no oths.T current product irprove-  ;

a,ents which would positively af fect rc11ab131ty, that should be incerl-erst ed J n Lili n's. Transamerica Dejava) Inc. Wilj, of courhe, prt .l.t)y nut.i fy 1.f ico 'if f uture product improvements are m sde which hhould be incoruurste et in 1.11 cu's ent,inen.

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, l Very truly yours.

, I c'. k Gri~

Richard A. Pratt P.anager, Custer.er Service CC: C. E . T rus.n ell .

E. White (NY) .

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September 21, 1953

• Long Island Lighting Company Shorcham Nuclear Power Stat, ion P.O. Dox 618 W.sding River, NY 12~92 Attention: -Mr. E. J. Young 1: Lng

Subject:

Diesel Generators TDI S/N 74010-12 Product Improvements Issued Since the L2LCO Engines' Releese r

Dear Mr. Youngling:

Per your request, the following list of product. improvements, i: sued from the design department since the releasu of the LILCO engines has been developed. Severs 1 of these improvements have been other items oa the ti t are not C incoreoretee applicable to avnuclear L2 Leo service.

- surs- These may concern maintenance or cost reducti'ons which need not be considered on the SNPS Diese18. These items are identified in the corments column:

ITEM COM!!ENTS

3. Governor Linkage: ,

Collapsible link style assembly Ir:corporated at SNPS

f. 2 Weter Punp:

New tapered fit drive gear hub & Incorporated at SNPF irr.pelle r . Strengthen tapez fit drivesnaft.

3. Starting Air Lines:

A) Air Purge Line - I n t a k e !!a r.4 - Af.B are nct required with fold to Starting Air r,anifolds, dry starting air.

b) Stainless Steci piping CcJcon valve to cylinder. ..

4. Sterting Air Distributor:

Ad7unt Ab3 C Cam for 11".109 **~irtenante J t er. .

'. : 1.m 1 Oil ?eeder: ?n n.r; . ,, t e p, ,, ; r N p ,c, E,0C*Or r , r, y c r. ,

.P.r . r.. J.'toungA1:N

.septonber. 21, 1983 Page Two Turbocharger Dracher: SNPS designed brace in-6.

A)1mproved & strengthened tracket. corporated. Wator filling should be investigated.

B)Weter filled turbo brachet brace. .

7. Turbocharger Lube Oil TiVcings:

Thrust. Bearing Drip Lubrication. Incorporated at SNPS ,

F. Barring Device:

A)Reverisble withOut axial move- Maintenance items ,

ment.

D) Centered Control Valve. . -

9. Tools:

Maintenance item A) Improved Valve Spring Compressor B) Engine Lifting rixurc. .

Incorporated at SNPS it. Jacket Water Standpipe Internal self-contained overflow. Cost Reduction .

11. Air Butterfly Control Bearingt Changed from oil cup vick lube should be investigated, to "Alamite* grease fittings.

12. Lube Oil Fittings:

Mc3ded 11cader riange and Cost reduction and Split oil Scal. reduction of oil leaks.

O 13. Lube Oil Pressure Regulating Valve; improved design cicarance modified Shneld be investigated.

to prevent sticking.

• 4 Engine Base & Bearing Ceps: AED - These inprovementF.

A) Heavy Caps - temperature actcetion B)T3anged kcar Main Bearing ShcIls require base repiccernent, for front & rear lower meins 3/4"

. replacing 3 " dowels for more material between bolts. 'This reduces the peeri-C) Hex type mein bearing stud nut with fact locking bar. bility of be.nding ti.c 3cck pin when torquing the caps.

35. Crankshaft:

Changed pin perne.1 rire ! rom 3 2 tra Inc.osporated at SNPr.

32.

Inc:enned wr:t con ') gte ra t: . :.. .

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Mr E. J. YCunqJ&ng s2ptrr.bar 21, 1983 Pego Throc 16.scylinder Block & Liners: AED-Require replacement A) Longer cylinder head stud bowsos with extra long studs. of cylinder block.

B) Thicker top deck. .

C)Special nuts for liftJag fixture. Incorporated at SNPS D) Shortened liner. ,

) E)Viton "o" rings Incorporated at $NPS F) Changed material & hardnasa To IM of liner. ..

17. Water Discharge Manifold: Current crifice plate Ejector Style performs adequately. ,

38. Connecting Rod:

Improved bolt load distribution. Incorporated at SNPS

19. pisten & Pin:

A) Skirts have copper flash pro- TDI has limited fic3d ceduro prior to tin plating. cxperience with new Skirts have half stack

• Belle- piston.

, ville" washer arrangement. Pin boss, roof & ribbings of skirt redistributed for optimum

- strength vs. weight.

B) Pin Assembly - No probicms experienced Improved techniques on chrome with chrome peel or pisten O plating & loctite on piston plugs at SNPS.

plugs.

20. Fuel Pump Base:

Added drip troughs. Reduces oil 3cakage.

21. Idler Gears New means of holding idler gear Should be-investigated.

to stub shaft with split nut.

22. Starting Air Valves:

A) Longer retaining bolts. Should be investigated.

H)New spacer, spring, roteinnr & Should be investigated.

washer assembly.

23. Cylinder Head & Valver.:

General upgrading - inproved heat. Incorporated at S!!PS transfer, strength, wear, casting, weldir.g & OC techniuuen.

Vi t on 0" rings. '

o

, -Mr. L. 8 roungasny

.soptember 21, 1983 t page Four-

! 24.sCylinder Head Covers:

A)Added rigidity with' web change. Incorporated at SNP.c B)New rocker arm shaft bolting. 2 incorporated at SNPS

25. ruel Injection Equipment:

A)135' spray tip on fuel nozzle. A&B are bcjng incorporated e R) Shrouded Tuel Lines at SNPS.

C) Tubing material improvernent Should be investigated, on fuel roturn line. ,

20. ruel Pur.p Linkage:

A) Improved collapsible link. A&B-are net applicable .

b) Improved anti-jackrabbit start for nuclear service.

cylinder.

27. Exhaust Manifold: Designed to reduce Scaled water jacketed arrangement. exhaust leaks.

2 t' . Crankcase Vent:

Fanicss system with better Prerent system is r

separator. satisfcetory.

29. Triction Welded Push Rods TDI har lin'ated field experience.

30. Overspeed Trip:

O New gear drive bracket. Should be inverticated.

31. Governor Drive Coupling:

Softer drive coupling. Should be investigated.

32. Piston Crdkn Cutback:

Improved ring performance. Should be inver,tigated..

In addition there are two control system improvements that can be incorporated. They are

2) High Temperature Maan Bearing Shutdowns

2) Vibration Shutdowns Doth iters should be invunticated for incorporation en the SNPS Diesels.

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._- 1 E. J. Youn0AAny (Sh,

, 5 pt hmb2r 21, 1983 '

. apga.rivo 1

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. If you have any other questions regarding this rr.atter, please do not hesitate to contact us.

Ii . very truly yours, y'

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('l)/g. wm Iff"',/s

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h .I - Engineer - Custo:ner Service

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