ML20072N261

Part 21 Rept Re Indeterminate Weld Quality Due to Surface Irregularities That May Mask Defects.Initially Reported on 830622.Piping Subassemblies Containing Welded Angular Branch Connections W/Pad Reinforcement Reviewed

ML20072N261
Person / Time
Site:	Clinton
Issue date:	06/24/1983
From:	Bornes R, Moerke N SOUTHWEST FABRICATING & WELDING CO. (SUBS. OF IU
To:	Potapovs U NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
REF-PT21-83-934-000 PT21-83-934, PT21-83-934-000, NUDOCS 8307150263
Download: ML20072N261 (5)

Text

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SOUTHWEST FABRICATING

& WELDING CO., INC.

June 24, 1983 JUN2 91983  ;

L iLd Director, Office of Inspection & Enforcenent U S Nuclear Regulatory Comussion, Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76011 W4$l Attention: Mr. Uldis Potapovs, Chief Vendor Inspection Branch

Reference:

10 CFR Part 21 - Reporting of Defects & Noncompliance Illinois Power Conpany Clinton Station, Unit #1 Constructor: Baldwin Asscciates Engineer: Sargent & Lundy

Subject:

Weld Surface Irregularities that my Masi Defects Centlenen:

During the telephone conversation with Mr. I. Barnes, Ragion IV R& CPS on June 22,1983 at 10:15 AM, I presented the initial notification of the SF&UCO apparent failure to comply with the requirements of ASE III Paragraph NC-4424, prior to radiography. '1his apparent failure was rep n ted to ne on June 20, 1983 by Mr, R. P. Borncs, SF&WCO Nu.ager of Qmlity Assurance.

h branch connections, as described below, were 45 laterals with reinforcing pads. Radiography was performed prior to installing the reinforcing pads. Our stated position relative to this deviation is:

Weld quality is currently irrieterminate due to surface irregularities that may nusk defects.

During the discussion, Mr. I. Barnes had specific questions regarding the RT technique that was enployed by Southwest on these items and recorded on the Reader Sheets prior to shipnent of the items, and also viewed at the Clinton, IL jobsite. Therefore, Mr. Bornes, QA Manager and ASNT Invol III, who viewed the radiographic film and verified the radiographic film deficiencies at the jobsite on June 16 and 17,1983 reported his observations in detail to Mr. I. Barnes. Our Mr. Bornes discussed the individual characteristics of the film with Mr. I. Barnes.

8307150263 830624 /

PDR ADOCK 05000461 h f S PDR /

7525 Sherman Street P.O. Box 9449 Houston, Texas 77261-9449 - (713) 928-3451 TWX: 910 881-1600

l S6UTHWEST FABRICATING

- 4 WELDING CO., INC. -

Nuclear Regulatory Conmission June 24, 1983 Page 'Iko It was pointed out that the radiographic films undergoing the review at this late date, were accepted by the Baldwin Associates QA repre-sentative and the Hartford Authorized Nuclear Inspector, who signed the bbnufacturers Data Report after the subject radiographic film was released by Southwest, prior to code stanping the items NPT C1. 2.

It should be recognized that radiographs of branch connections taken before the reinforcenent pad was installed were evaluated and accepted by our personnel and the ANI with many surface irregularities shown on film. At that tine, the weld was accessible for visual examination, the joint configuration and the welding processes were available, and this information was used in the evaluation process. Obviously, all of this information, including the weld surfaces, is no longer access-ible and makes it intrssible to assure that indications shown on the film are surface inperfections.

In accordance with the requirenents of Paragraph 21.21(3), we are tz.bulating the detailed sunrnry of the infornation pertinent to this notification:

Para. 21.21(3) (i)

Personnel notifying the Conmission:

N. H. bhrke, Vice President-Engineering R. P. Bornes, Quality le urance bbnager Southwest Fabricating & Welding Co. , Inc.

P. G. Box 9449 Houston, TX 77261 Para. 21.21(3) (ii)

Identification of the facility:

Owner: Illinois Power Company 500 South 27th Street Decatur, IL 62521 Clinton Power Station, Unit #1 Clinton, IL Items: Piping Subassemblies with 45 angular branch connection laterals with reinforcing pads installed after radiography; Class 2 NPT.

SF&W S. O. 4301 - Piping Subassemblies.

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S6UTHWEST FABRICATING

- 4 WELOING CO, INC. -

US Nuclear Pegulatory Camission June 24, 1983 Page Three i

Constructor: Baldwin Associates

! 1211 E. Tower Road l Shaumburg, IL 60196 Baldwin Assoc. P. O. No. 4457 Para. 21.21(iii)

Identification of the firm supplying the items which fail to comply:

Southwest Fabricating & Welding Co. , Inc.

7525 Sherman Street Houston, Texas 77012 Para. 21.21 (iv)

Nature of the failure to craply:

Weld quality ir. determinate due to surface irregularities that may mask defects. Items shippxl on Baldwin Assoc.

P. O. 4457 dated 9/26/74 covering piping subassemblies funushed in accordance with ASME Sectior. III 1974 &l.,

Surmur 1974 Addenda Sttparagraph 4424(c), Surface of Wells.

The following listed piping siusserblies contain welded angular branch connections with pad reinforcenent where the wld quality is indeterminate, as reviewed and noted below, due to surface irregularities that nny mask defects:

Sizes Pc Mk Iso S. O. Sht. 45 Branch Shipped 1-DG-1-5 DG-1 Q4301-DG 4 20" x 36" 12/24/80 1-DG-2-5 DG-2 04301-DG 12 20" x 36" 1/21/81 1-DG-3-1 DG-3 Q4301-DG 17 24" x 36" 12/24/80 1-DG-4-2 DG-4 Q4301-DG 22 24" x 36" 12/24/80 Piece Mark Mos. 1-DG-2-5 and 1-DG-4-2 radiographs were reviewed at the Clinton jobsite by Mr. R. P. Bornes during the period June 16 and 17, 1983, and the film exhibited the effects of the above-noted surfa irregularities that may mask defects. Piece Mark Nos. 1-DG-1-5 and 1-DG-3-1 have not been reviewed. The radiographic film for these pieces will be reviewed during Mr.

R. P. Bornes' next visit to the jobsite, tentatively scheduled for the first week of July 1983 by Baldwin Assoc. QA personnel.

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S6UTHWEST FABRICATING

- & WELOING CO, INC. -

US Nuclear Pegulatory Conmission -

June 24, 1983 Page Fbur Para. 21.21(v)

'Ibe date on which the information of failure to conply was obtained:

June 20, 1983 Para. 21.21(vi)

Other piping subassemblies that incorporate reinforced welded branch connections requiring radiography and NPT Class 2 code '

stanping, to be subjected to review and evaluation of the radiographic records:

Connonwealth Edison Cbnpany - P. O. 194350 dated 3/8/76 Byron Station Byron, IL and Conto: wealth Editon Cerpany - P. O. 194351 dated 3/8/76 3raichrx>d Station '

Braid w cd, IL Pc hk Iso Sales Order Sht. Shipped MS-15-7 LE-15 06047-E 6 5/24/79 FE-lG- 7 BS-16 14 6/20/79 MS-17-7 MS-17 22 5/24/79 MS-18-7 E-18 30 -6/7/79 MS-56-1 MS-36 06049-MS 1 3/24/81 MS-57-7 MS-57 18 3/12/81 MS-60-7 MS-60 30 3/31/81 MS-61-7 MS-61 42 3/31/81 FE-15-7 MS-15 06055-MS 6 6/15/79 MS-16-7 MS-16 14 6/8/79 ,

bE-17-7 MS-17 22 1/30/81 .,

MS-18-7 MS-18 30 1/30/81 bE-56-1 MS-56 06057-MS 1 9/23/81 y MS-57-6 MS-57 18 10/23/81 bE-60-7 MS-60 30 6/26/81 E-61-7 MS-61 11/13/81 SI-43-2 SI-43 06048-51 110 8/10/79 '

SI-43-4 SI-43 "

112 8/10/79 ,_

SI-37-1 SI-37 06050-SI 70 9/25/81 SI-37-3 SI-37 "

72 s 9/24/82 SI-43-2

^

SI-43 06056-SI 138 , ll/3i)/79 SI-43-2 SI-43 "

140 8/29/80 -

SI-37-1 SI-37 06058-SI 70 8/7/81 SI-37 8/7/G

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,SI-37-3 72 ,

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• :s6umWEST FABRICATING

- & WELDING CO, INC -

US Nuclear Regulatory Conmission June 24, 1983 Page Five Para. 21.21(3) (vii)

The corrective action which has been, is being, or will be taken and the length of tine to complete the action:

Indeterminate at this tine and until the investigation

? has been conpleted and further action finalized with the jobsite nanagenent.

Para. 21.21(3) (viii)

Advice related to the failure to conply will be provided to the purchaser and licensee by telephone connunication and copies of tnis letter to:

Illinois Power Conpany and Baldwin Associates at Clinton Power Station Clinton, IL Please contact us if further clarification is required cf the infornation furnished.

Yaurs very truly,

• / W N. H. hterke, P.E. R. P. Bornes Vi Presii nt-Engineering Quality Assurance trager ASNr Ievel III NHM:dc cc: Illinois Power Company Attn: R. E. Campbell, IP Dir-OS&A 500 South 27th St.

Decatur, IL 62521 Baldwin Associates Attn: J. E. Finley, Mgr.-Q&TS P. O. Box 306

, Clinton, IL 61727 Connonwealth Edison Conpany Attn: J. T. Westerneier P. O. Box 767 Chicago, IL 60690 SF&WCD: B. J. Goodwin/f. F. Ichmann/A. W. Angelo/E. R. McAnally S. M. Goodwin