ML20008F050

Submits Revised Response to IE Bulletin 80-08, Examination of Containment Liner Penetration Welds. Revises Tables 1-4 Re Penetrations:Containment Nozzle to Cap Weld,Process Line Weld,Flued Head Weld & Nozzle Nipple Weld

ML20008F050
Person / Time
Site:	Fermi
Issue date:	02/12/1981
From:	Hines E DETROIT EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
FF2-49-993, IEB-80-08, IEB-80-8, NUDOCS 8103120128
Download: ML20008F050 (6)

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n Detroit Ecison 5 5%

February 12, 1 R EF2-49,933 4-Mr. Jarnes G. Keppler Regional Director '

U.S. Nuclear Regulatory Commission --

E 298lh h Region III 799 Roosevelt Road

{ Qp Glen Ellyn, Illinois 60137 /

y Re fe rences: 1. Enrico fermi Power Plant, Unit 2 USNRC Licensing Docket: 50-341 USNRC IE Bulletin 80-08 (4-7-80)

2. Detroit Edison Letter EF2-49,339 of July 7,198b

3. Region III Report No. 50-341/80-17 Stbject : Revised Detroit Edison Response to NRC IE Bulletin 80-08

Dear Mr. Keppler:

During the NRC Inspection of October 6-9,1980 (Reference 3)

Mr. E.W.K. Lee of your office mviewed Detroit Edison's response to IE Bulletin 80-08 and the supporting documents on file at the site.

Mr. Lee examined record packages for six welds identified in table 3 of the Detroit Edison response (Refere,nce 2). The record packages wem obtained from the Wisraer and Becker QA Record Vault. After reviewing the packages Mr. Lee noted discrepancies between the reported status of the welds and the status indicated by the recorch.

Mr. Lee indicated that he would not review the records further until a status reconciliation wr 3 submitted to the NRC.

~ Per Mr. Lee's request we are herein submitting an updated response to IE Bulletin 80-08 enclosing revised versions of Tables 1-4 of the original response.

Should you require additional information from Detroit Edison iri

. this matter, please advise us.

Very truly yours, EH/JDR/Im Enclosure W 2 199I 8103120lN Q L

o Mr. James G. Keppler February 12, 1981 Page 2 EF2-49,933 cc: Director Division of Reactor Construction Inspection .

Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Di rector Division of Reactor Operations Inspection Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Director Division of Operating Reactors Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. Bruce Little, Resident Inspector U.S. Nuclear Regulatory Commission Resident Inspector's Office 6450 North Dixie Highway Newport, Michigan 48166 9

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l TARIE 1, .SFARE PENETRATIONS [FIC. NK 1120-1 (a)]

CONTAINff:Irf NnZZ12 TO CAP WElb .  ;

Nominal Containment Outside Thtckness . 1/22/8t' Fenetrattre - , . .. ,.

Nossle : . Cap Diameter' @ Weld' Backing NDE NDE Ik, . Edison Weld No. Material- Material . '(in.) '(In.) . Joint Type Bar 5thod Status Reewit s/Repatre ** '

I-li- -T23-2502-14W1 SA 516 Cr. 70 SA 234 Cr. R 24.000 0.349 Butt' Yes RT - Weld not made

, I% T23-2502-136-lWFI SA 333 Cr. 6 SA 234 Cr, b 10.750 0.495 Butt Yes' RT Accepted

• No repatra I X-41 T23E2502-R41 lWFI SA 516 Cr. 70. SA 234 Cr. 8 - 6.625 0.19s ' Butt Yes RT Rejected cut out, swatting re-weld open t=tt 3-45 .Not asetaned SA 516 Cr. 70 SA 516 Cr,'70 . 34.000 0.250 Butt No RT Accepted Weld was made and enemined by the feb.

ricator et the containment eessel.

Due to audtfication of the cap, at least one other closure weld le re-qqtred.

Ms

• Accepted by Erector, not Edloon

• • Details of defecto encountered are available on site.

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i TAplI 2. ' TYPF. lit FFR1*ATIONS [FIC, w 18201 (h)) .

OptrTAINPONT Negltt TO FRuf f'58 Ltur WI.lb Mcwelpel

. 6 Containment - Frucese 1.t ne'. Outside Thienness: t/22/88 Penetratirmi . . Isons te (or Cap), Diameter (e We g d - eachtas Nt* Nt*

Ilo. fdlenn Weld No. Motoffel Mat e rial (in.) (in.) Jntne Type Der Methad _getve 3,eulte/peestro ***

1t.15 * . 748 2098 0WI S A 516 Cr. 70, $4 234 Cr. 3- 20.000' O.MR. Beef t Yes RT Accepted ** h repelte (Cap) 2 25 '

T46 3091 0WI SA 514 Cr. 70 SA 106 Cr. s 24.000 - 0.175 Butt Yes RT ' Acterted sepatra were perfereed

~X.26 746 4304.WO SA Sl6 Cr. 70 SA In6 Cr. 5 24.000 0.175 nott Yee af Rejected Repaire were per fer.,d, swa tt ina re.RT 3 19A Ell.)l59 0W194 . SA 33.3 Cr. 6 S A 106 Cr. B - 17.750 0.M44 Dutt Yes AT Ac c ept ed N repaire X.198 - Ell.3164*SWG EA 335 Gr, 6 $A 106 Cr. S 12.750 0.844 Butt Yes- RT Rejerted Has been cut <=t and re-welded e pen tmtt. Second weld rejec t ed by RT.  !

ewettina repair.

' X.44 8 744 2094 0W1 SA 1)) Cr. 6 SA 516 Cr. 70 26.000 0.348 Butt h RT . NDF n t perferned (Cap!

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. Et ' ',* W.O.l., le att ached to penet ret ton cap to accensentate 4" process line else.

• • Accepted by Erec tor, not Edison . .

• • • Detalle at defecto encountered and entent of repaire are seatlable ein ef te. l t

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9 TABLE 4. TYPE I PFNETRATIONS (FIG. NF 1120-1 te) MODIFIED)

Cf9ffAINMFNT NOZ711 Tt* NoZILE ggrygf wy Lp Naminal Contatament Nossle Outalde Thic knes s 1/22/81 Penetration Morale Nipple Diameter la Weld Bac k ing NDE N1't.

No. Edison Weld No. Material Material (in.) (In.) Joint Type Rar Method Status Beaults os Nt'F /R epa i r e

• X-7A N30-3258 IW2 SA 516 Cr. 70 SA Sin Cr. 70 42.000 0. M 9 nut t Yea RT Re jec t ad Ta he cut out and re-welded X.75 N30-1258.!W1 SA $16 Cr. 70 SA 516 Cr. 70 42.000 Nas been cut out , t o be r e-we lded X.7C N10-3258-lW4 SA 516 Cr. 70 SA 516 Cr. 70 42,000 Nas been c ut out, to be re-welded X-7D N10-1258-lW3 SA 516 Cr. 70 SA 516 Cr. 70 42.000 Has been cu* out , to be re-welded X8 N30 3526.IVW3 SA 333 Cr. 6 SA 333 Cr. B 16.000 To be cut out and re-welded or SA 106 Cr.

X.9A N212336 llW2 SA 516 Cr. 70 SA 516 Cr. 70 40.000 Has been cut out on bagts of visual examinat ion and re-we lded open but t .

Second weld te jet t ed by RT , w i t h c u-tent of required repatra uvQnewn.

X.95 N212336 lW2 SA 516 Cr. 70 SA 516 Cr. 70 40.000 To be c ut out and re-welded I

X-10 d51-2192-2W5 SA 333 Cr. 6 SA 333 Cr. 6 or SA 106 Cr. B 18.000 X-Il E41-2297-2W4 S A 516 Cr. 70 SA 333 Cr. 6 or SA 106 Cr. R 28.000 X-12 Ell-2299 4W1 SA 516 Cr. 70 SA 516 Cr. 70 36.000 X-13A E l l-2 32 7. lW2 SA 516 Cr. 70 SA 516 Cr. 70 34.000 X 138 E ll.2298-lW2 SA 516 Cr. 70 SA 516 Gr. 70 34.000 X-164 E 21 305 3-1W2 SA 516 Cr. 70 SA 333 Cr. 6 or SA 106 Cr. R 28.000 Rejected To be c ut out and re-welded X-168 E21-3052-lW2 S A 516 Cr. 70 28.000 Ac c ept ed Repairs were required X-17 E ll.1519-2W2 SA 516 Cr. 70 20.000 ,

Rejected currently beina repaired X.43 C 3 3-3096-lW 2 SA 516 Cr. 70 SA 33) Cr. 6 10.000 0. 34 9 Rut t Yes RT Re jec t ed To be cut out amt re-welded or

, SA 106 Cr. B M:

• Th defect s encount ered included lack of fusion, intermittent penet rat ion, pr'reat t y, slag inc ludion, and burn t hronyh De t ails cf specific defects and extent of repairs are available <m site. The use af bach tna bare i n t he re-welds is a nier review.

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