ML20141K930

Forwards Category B Repts Re Util 710614 Ltr Transmitting Summary Technical Rept on Primary Containment Leak Rate Test Info.No ACRS Action Warranted

ML20141K930
Person / Time
Site:	Oyster Creek
Issue date:	07/07/1971
From:	Mckinley J Advisory Committee on Reactor Safeguards
To:	Stratton W Advisory Committee on Reactor Safeguards
Shared Package
ML20091A092	List: IA-91-282, Forwards Written Statement Submitted by Sp Russo for ECCS Subcommittee Meeting on 770129,for Info.W/O Encl ML20141K026 ML20141K047 ML20141K056 ML20141K063 ML20141K066 ML20141K070 ML20141K076 ML20141K082 ML20141K091 ML20141K095 ML20141K121 ML20141K137 ML20141K141 ML20141K153 ML20141K163 ML20141K175 ML20141K185 ML20141K190 ML20141K359 ML20141K365 ML20141K368 ML20141K372 ML20141K375 ML20141K379 ML20141K382 ML20141K386 ML20141K390 ML20141K395 ML20141K398 ML20141K402 ML20141K406 ML20141K408 ML20141K415 ML20141K418 ML20141K423 ML20141K426 ML20141K432 ML20141K436 ML20141K441 ML20141K618 ML20141K620 ML20141K625 ML20141K626 ML20141K630 ML20141K633 ML20141K635 ML20141K637 ML20141K641 ML20141K643 ... further results
References
FOIA-91-282 NUDOCS 9203260134
Download: ML20141K930 (3)

Text

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_I July 7, 1971 f - :

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W. R. Stratton, Chairman Oyster Creek Subcuumdttee I C. F. $less, Vice Chairman, JCES CATEGORY 5 REPORTS - 0f87E1 CREEK - JERSIT CENTRAL POWER & L2GRT CONFANY 1.ETTER UNDATED TRANSKITTING St2 MARY TECINIICAL REfott PRIMARY l CONTAllem3rr 17 AKAGL 5ATI TEST MAY 1971; JERSEY CENTRAL POWER & LIGET

.l COMPANT 12TT11s DATED JUIE 14 & 15, 1971, JUNE 15, 1971 TRANSKITTING RESULTS OF A PRELIMINARY INVESTIGATION, AND JUNE 25, 1971 TRANSMITTING OPERATIONAL QUALITY ASSURANCE PROGRAM SUIMARY DESC11FTION

, Attached is e brief summary of the 1sformation presented in the subject i correspondence. No ACRS action appears warranted.

I these items should be incorporated in your set of project documents to maintain an up-tWate description of EM plant, orgeaisatten, procedaes. .

etc.

f Original Signed by J. C luKinley.

( J. C. McKinley

. .j .

Staff Assistant Attachsents:

1) Summary I 2) JCP&L lte date unknown teetg l l Summary Tech. Ept primary l Containment Laakage Rate Test i

May 1971

3) JCP&L ltrs dtd 6/14, 15, 25 (1)/71 p.

l 9 c.

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! omer > .. ACRS... .. . . .. . . . ._.. . . . . . . . . . .

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I DATE> .

7/7/71 _

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Form AEC=318 (P.ev. D 53) u.s covtRautm rn<mine cara iw & meses ,

9203260134 910807 /

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StWTsit casali _Jereer central Feuer and u a g e adatadi osbeits a report describias the prhessy 1, .

't eestaineset Lashese sets test osadested am Mf.-

ectober 1979. D e inteersted Primary Osmasteag'"t meat beak ants test was esspleted en esteher 22, 1970. It une condested La enesedanse udth Section 4.5 of the Techsteal Apocifteettens ,

't one within the reestred 12 meethe + 4 usethe of initial eritiestity ( May 3,19I9 ).

h e overall task rate oss ta emcees of asesytabla Itaits. His was due to the lashase throach the torus sayson enslyear isetation yaluer shiek dailmi f to oest propetly. h a Leekage threagh this value i has been estimated to be W botmeen 7

(' .pereest and 9 pereent of the aestained volume per day.

! A leek squares fit of all the data assalted ta' l an overall Leak rate of 0.276 pereest per day.

It uns noted, however, that the data points prier to 1100, 0:taber 21 were gutte erratia. Ekts was due to e drywell recirculaties faa dish tripped I .

and was sta:*.ed neve.ral times duries the test

, , thereby pr..ating the drywell atmosybere from

' reaching en equilibrium asedition until appremi-l mately 1100. October 21. f r g: ~ 1y, a toast l

l squarea fit en the last 13 data peints una calculated resulting is a 0.116 poetent per day i _

'- Leek rate. It is believed that this figure is .

. 1 mera representative of the eetual steady state

! leak rete of the oestaimeemt vessel at 30 pois.

no Acts acties appears warrested.

hsy fetrel Power And teat Comener tatter I dated June _14.197J, esports she failure of

] Contalement spray system Bish.Bryme11 Pressure IF 15A to roast af tet botas tripped for Sommers surveillance testies. Sa malfumation was traced to the misalismeest of a adgmet attached to tbs l

differential pressure bellows of the settah.

aspairs were made and thaspystan returned to normal operation gi ,

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me acas ties e.,uired. 9 .

mm OPTict >

M er M el4L5r1D1-reports-the 1 M e44 Lt&Bt E_collapse.cf._the _ _ _:1

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g.Juss somut> .. .. ,

eit( peekage bot.(or,dlue.- - - - . .

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Furm AEC.338 (Rev.6@ ua .ovtamarm emmms GFx7 de2uu I

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9tW11R CatcK I.jgf '

(COIET N ED) h,;; I j

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he 30-taeb esameito flue une erestad AmeMeD plant's vuotilation eteek. It penetmated t s i ventitettom otmak at appresiastely ah*8== M '

feet and see taside the steek to trichia le techos of the top. Its purpees ans to carry off the oeshustion geese from the peehage hattae. He soltepee of the flue reemitad la minor esmeso to the imekiastis pesbo of the etask gaa==14 Ler but eyetan perforesame is met afeested.

t j Aetime one sehen famodtately te onestrust a tem flue for the pechase boiler, outside  ;

et ventilatime eteck, La seder to treturn the '

I boiler and the wasta eencastratar to service me soon as possihte. I At the meat outage of saitable duretten, she isoktaetic probe will be seemined and r u _ied er repaired se required.

> Acas action toquired.

Jereer Centrol Power And Liaht Commeny lotter i

dat.ed June 25,197i reporto preliminary assaults l et the unter hame==r incident in the eere aprey l i eyeten. A jockey puuy woe tastelled to heap L

L 1

I the syntam filled. The 1sttar reports the actions taken or ytanned to evalanta the adequacy of the

't eere spray pipias systene.

l We ACES action appears warranted.

]

Jereer central Power _^-d U-ke causar latter t

dated *~ 15.1971 auhaits a===a===t No. M i

! to the applicottaa. Bis Ansedmont deoerihme

[ the'opeastiment quality assuroese pine and is

' suhaitted La respesos to DEL's Herob 15, 1971

, letter (aes awplasset me.140)

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me Acts aaetan required.

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