ML20126C709

Updated PNO-III-80-045B:licensee Ultrasonic Examination of Core Spray Piping in a & B Loops Located in Drywell Completed.Piping Will Be Replaced W/Low Carbon Steel Pipe

ML20126C709
Person / Time
Site:	Quad Cities, Fort Calhoun
Issue date:	03/14/1980
From:	Chrissotimos N, Spessard R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
References
PNO-III-80-045B, PNO-III-80-45B, NUDOCS 8004080573
Download: ML20126C709 (2)

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" ~ PRELIMINARY NOTIFICATION

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l-Date:

March 14,1980 -

PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCClfRRENCE--PRO-Ill 8D-4bH i

Tble, preliminary notification corypt.itutes EARLY not. ice of eventp _of liOSSIBLK j

8a f ety or public interest sJxni,ficance.

Tlje information present ed is as -

initially re reived without ve,rification or evaluation and is basically all

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4 that is kmi,wn by IE stsi,f, an of this dat.e.

Pan i I i t.y i Conummunaii h l'.d Inun Company Quad Ci tien Nun 1 car l'nwar St ntlun, th:11. 2 Docket. Number:

50-765 cordova. IL l

l Subj nnt. :

CRACK IN CORE SPRAY PIPIEG 1

Thlw PN in an updas.n ut PNO--111-4.'s & 4bA iveued ou March 10 a 17,1980,-

'the licensee has enmpleted an ultrnannic examination of thn nure spray piping in both A 6 B loops located in the drywell, Thn findiny,n in d ir.at ed crduking of 1.hu weldn in the 90" elbov upstream of the snfc end and:r.rnti-ing in the nnxl upntrnmu 90 nihow l.o valve weld.

The indication.; were identIrn1 for hath loopn.

No italic.al.luun vf cracking were found on thn remaining velds in either loop.

The licenwee's findice.s.,nd prnposed corenni.tve actions were discussed during a conference call on kie rch 13, 1980, which inclucind R111, IF., Njul nnd CECO rnp runuu t. alive c.

The licensee's plans and corructivu acLions, which were found nernplnh'n by Lhe NRC. includud thn following:

1, 4pl.ncement ut thu allect.ed piping in both :

ith Inv carbon ntun1 pipe in accordanen wis.h recuuuuuudstions of :

< ) 1 'i.

Thiu includen thn piping run from about 6 inchen upnrenam of,t end up to and j

including the second elbow, The repai r will four diccimilar wnldo 01 nurhun 1.0 nLaiuless steel in each 1.nop and t.hu existing manual valve in unch loop will be reinstalled.

7. The repair rienerihnd In ILum I le futended to be nn interim fix.

The finn 1 reanlurinn ul thin problem vill be made bnur.d un t.hu reuult.u of the metallury,ien1 analynis of Lbe creeks.

(PACE / Of 2 PAGES)

Distributiont Trnnnmit ted H SL I

CIiiirman Ahea r ne Commissioner Hemf ric S. J. Chilk, SECY Umnmissioner Gilinsky Coenissioner hrndford C. C. Kammerer, CA Commissioner Kennedy-ACRS (For Distribution)

Transmitted:

HNHD P, Blda lE:XOOS (IE: liq nist-

1. Dircke. F.no jg, g, penton, pgg j

C. MIchn] son. AEOD R. C. DeYuung, NRR J. J. Pouchard, PA R. J. Matt.unn NRR Londow (6 rnin/page)

N. M. Hni1er, MPA D. VacunlIu. NRR J. J. Cummtuy,u, O I A '

R. G. Ryan. OSP D. Eisenhut., NFR H,. K. Shopar, El.D SS Bldg _

(MAIL)

.7, G Davin, b1MS R. Minogue, SD S. Levine, HES IE:x003 g

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e PRELIMINARY NOTIFICATION

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8004080573-

1 PREllt11 NARY NOTIFTCATION (FACE 2 UF 2 PAGES)

PNO-1iT-80-45n narch 14, 1980

_racility: Cot:monwealth Edison Company -

.Qund Citiun Nucinar Power SLaLlon. Unil 2" Doc 1cer Ninnhnr:

's u-2 h's Cordova, T1, SubjeSt:

CRACK TN CORF SPRAY PTP TNG

.'i. Thu licensea vill ship a section of the piping and delective weld Lu thu Ticoukhaven National Laboratory, and the NRC will conduct nn indepundant morn 11nrginn1 oxiuninullon of thu sample.

4.

Until final resolutinn of thin problem has been schie'ed, ultrasonic examiusLions of the core sprny piping in hur.h Icops locaLed in the drywn!I wliI hn performed al future plant nutar.e.s ns: follown:

a.

For Unir I, which is cuttently operatinP. at full pownt, all wulda vill be examined during the next outage of sufficibne durnt.Jon.

i h.

For ifuit 2. which is currently nhutdown, t.he safe end weld and I.he two d1velmilar metal velds at nach und of the replacement piping run w111 he e::amined at the nnxt entuuling outage.

5.

The licennen wi ll <luenment. Lheir plauf, and corrective ace tonn in a letter to the NRC.

As a result of thiri prob 1cun and the necessary repairs, the licennne untimaten that the fresent outane vill be extt ndnd about. five weeks.

Plant startup is nov e:heduled for April 13, 1980.

Thn lir.cnneu'n zepsit efforts will be inspected by an RTTT Piping Special tar.

luspector.

Neither the licension nur Region 111 are plonniny, n unun rn1cano.

The State of 1111anig is being noLilled.

Thin informal 1on is, current ng of 2:00p.m. un March 14. 1980.

b c. -

4 Cont;a,c,t : N.

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Chrinnutimos. Resident Tnspnctor, 309/654-2227; R. L.

pessard, RTTT, 'iH4-2541, n.11. Danielson, RIII; 'jH4-2695.

Di itribution :

Transmitted li !;t.

L;hsitwn Ahearne Commfssioner liendric S. J. Chilk, SECY hommissioner Gilinsky Commissioner Bradford C. C. Kammerer, CA Lnmmissioner kennedy ACRS (For Distribut. inn)

Transmitted:

HNBB.

P. Bldg d!.3 [

IE:XOOS (JE; ilQ Dist.

f W. J. Dircks, roo

11. R. DenLnn NRR

c. Michelsuu. AcoD R. C. DeYoung, NRR J. J. Fouchard, PA R. J. fia L L s on, NRR

'Laudow,,

(6 min /page)

11. M. Italler, MPA D. Vanunlin, NRR J. J. C uraitigs, OIA H. G. Ryan, OSP D. Eisenhut, NRR M. K. Shapar, E1.D

$$ Bldg,,,

(MAT L)

J. G. Daviu. M!SS R. hinogue, SD l

S, Levine, RES TE:XOO!i PRELIMINARY NotlfICAIION 1

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