ML19320B085

Part 21 Rept Re Colt Emergency Diesel Generator Heat Exchangers.Deviation Between Configuration of High Heat Exchanger Stack on Generator Skid & Configuration Analyzed in Seismic Rept Detected

ML19320B085
Person / Time
Site:	Limerick
Issue date:	01/16/1980
From:	Moriarty J COLT INDUSTRIES, INC.
To:
Shared Package
ML19320B082	List: ML19320B081 ML19320B085 ML19320B087
References
REF-PT21-80-192-000 NUDOCS 8007090270
Download: ML19320B085 (1)

Text

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gk /' . ,' . ., q p,,j , REGISIEHED LETTER ti0. j j [) O RETURN l<f CEIPT REQUESTED

..s- l ! h '/. 9. i.'Oh co es1G,1980 Original 1. Januf;2'y

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Of fice cf Inspectim !. Lnforcen:nt U. S. I!ucicar Itegula tory Coi. mission Lcc: C. A. Ankrum J. Dalderston 799 Ruu,evelt Road- ..

Glen Lilyn, Ill. C0131 R.11. Ocadle l E. L. fay Attention: iir. Jaraes G. Eeppler, Director, Region !!! .

D.11. Teldmiller E. D. Greene i

Subject:

Cult Industries-l'airbank'; ilorse Engine Division *

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Irergency Diesel Generators !!odel 33TD8-1/8 '"

. Thiladelphia Electric Co.

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Limerick Units 1 T. 2 G. W. Olson Pot"ntial Seismic- L. E. Rau, New York

/, .10Ci RSO, Part 21 Report J. W. Tangye -

Gentlenen:

A deviation between actual physical configuration of a two high heat exchanger stack' on the diesel generator skid and the configuration analyzed in' the seismic report ha*. been detected on one of the subject units. The deviation is the result of worpage at the bolted interface between the

, diesel generator skid and the heat exchanger mounting feet and between the two heat exchangers ruounting feet. lione of these units are in an operating s

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Discussions are underway with the owner to reach agreement on a :rethod -

of repai r'. Our suggested r epair is to reanalyze the arrangement seismically

. based on a welded joint ra ther than a bolted joint and ef fect the appropriate weld repair before the unit s are placed in service. We will keep you advised as to the final dispusition of the Limerick units.

This specific mechanical arrangement is unique to the Limerick units.

An investigation of engineering docuraents will be undertak en to determine if the potential' for a similar situation exists on other liodel 38108-1/8 units.

We will advise ynu of the result' of that is:vestigation when complete.

'A copy of this' report is being forwarded to Philadelphia Electric Co.

Very truly yours, Q

,./4.Nortarty Afd;AGLR UllLITY SALES

JI'J1:Jc cc: Philadelphia Electric Co.

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2301 I4arket Street

, Philadelphia, PA 1910i .

~ Attentioii: Itr. Dick Itilford limerick I'rojeCL_llanager 8007090$"/O

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