ML19326B957

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Forwards Model Tech Specs to Provide Addl Assurance of Hydraulic Shock Suppressor Reliability.Requests OL Amend Changing Tech Specs to Conform W/Encl
ML19326B957
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 07/11/1975
From: Ziemann D
Office of Nuclear Reactor Regulation
To: Phillips J
ARKANSAS POWER & LIGHT CO.
Shared Package
ML19326B958 List:
References
NUDOCS 8004180666
Download: ML19326B957 (2)


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-JUL 11195 DISTRIBUTION NRC PDR local PDR Pocket No..50-313 Docket ORB #2 Reading KRGoller TJCarter 82 Arkansas Pouer & Light Co:npany DLZiemann MT!,:

Er. J. D. Phillips FDAnderson EE Senior Vice President RKIngram Produetion,'Irensmission, RMDiggs and Engineering OELD y~ ~

Sixth and Pine St reets OISE (3)

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Pine Eluff, Arkansas 71601 ACRS (14)

&ckkj HSNi Gentle.en:

DEisenbut e

In the sur.wer of 1973 a significant nu=ber of hydraulic sheck p -....._

suppressors (snubbers) were found to be inoperable at r.any reactor F ~~~

facilities.

'1he f.tilures were caused by severe depradation of

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seal riaterials and subsecuent leakate of hydraulic fluid.

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cyttnsive scal replacerent prograr has teen carriec out vhich

[:). gs Scs sicnificantly reduced the incidence of snubber f ailures.

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Foreve r, failures continue to occur.

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cur review of ~ snubber experience at react or f acilit ies indicates 1

e need for technient specifications requiring snubber operebility

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sn.! eurveillance.

M have prepared codel technical specifications and Far.es which vill provide addit ionc1 assurance of sat isf act ory snu' cer perf or cance and reliabilit y.

A copy of these specificalions

u is tcelosed.

Since these were not prepared explicit ly for your plant. s oc e editinr. May be necessary in order to acapt then to p

the Arkansas Euclear One - Unit I design cnd norenclature.

F You a re re ques t ed to subr.it within 45 days t ron your receipt of t h'i.e let t er an ar plicat ion tor nrendt.ent to your license that would chr.r e - your technical specificat ions to be in contar-snee with the require-ent s of the enclosed rodel teetnicci e,pec i t icat icns.

~~

ircerely, Yristnil *lgned by Dennis L. Ziemann Eenn is L. 2.iencn-. Chir t Operctire i.ea c t o rs Erench 2

Divis ion of iW,c t or Liceta.ini-N T. n c l o

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8004180(( [

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r, Arkansas Power & Light--Company JUL 11 S

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ce w/ enclosures:

Horace Jewell House. Holms & Jewell l

1550 Tower Building 1

-Little Rock, Arkansas 72201 Mr. William Cavanaugh, III Production Department Post Office Box 551' Little-Rock, Arkansas 72203 Arkansas Polytechnic College Russellville, Arkansas 72801 4

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