ML17229A887

Part 21 Rept Re Potential Defect in Swagelok Stainless Steel Front Ferrule,Part Number SS-503-1 Which Was Machined with Improper Length.C/A Includes Insp Equipment That Will 100% Identify Short Length

ML17229A887
Person / Time
Site:	Saint Lucie
Issue date:	10/19/1998
From:	Malec K External (Affiliation Not Assigned)
To:	NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-PT21-98 NUDOCS 9810280110
Download: ML17229A887 (6)

Text

CATEGORY 1 .

REGULATORY XNFORMATION DISTRIBUTXON sYSTEM (RIDS)

ACCESSION NBR:9810280110 DOC.DATE: 98/10/19 NOTARIZED: NO DOCKET ¹ FACIL:50-335 St. Lucie Plant, Unit 1, Florida Power 6 Light Co. 05000335 50-389 St. Lucie Plant, Unit 2, Florida Power 6 Light Co. "

,05000389 AUTH. NAME AUTHOR AFFILIATION

~

MALEC,K.J.

RECIP.NAME

SUBJECT:

Part 21 rept re potential defect in Swagelok stainless steel front ferrule, part number SS-503-1 which was machined with improper length.C/A includes insp ecpxipment that will 100't identify short length.

DISTRIBUTION CODE: IE19T COPIES RECEIVED:LTR ENCL SIZE:

TITLE: Part-21 Rept (50 DKT) E NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-3 PD 1 1 GLEAVES,W 1 1 INTERNAL: E CENT R 01 1 1 NRR/DRPM/PECB 1 1 ECB B 1 1 PDR WARD, M. 1 1 RES/DET/EIB 1 1 RGN1 1 1 RGN2 1 1 RGN3 1 1 RGN4 1 1 EXTERNAL: INPO RECORD CTR 1 1 NOAC SILVER,E 1 1 NRC PDR 1 1 NUDOCS FULL TXT 1 1 D THls DOCUMENT HAS BEEN SCANNED NOTE TO ALIi "RZDS" RECIPIENTS:

PLEASE HELP'US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPZES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD) ON EXTENSION 415-2083 FULL TEXT CONVERSXON REQUIRED TOTAL NUMBER OF COPIES REQUIRED: LTTR 15 ENCL 15

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SWAGELOK COMPANY 29500 Solon Road, Solon, Ohio 44139-3492 U.S.A.

October 19,1998 Document Control Desk Office of Reactor Regulation Nuclear Regulatory Commission Washington, DC 20555

Subject:

Defects Potentially Reportable under 10CFR part 21 We are writing about a potential defect in a Swagelok stainless steel front ferrule, part number SS-503-1. The part is marked with the heat code IVD on it. The front ferrule is shipped as a component in a Swagelok tube fitting, or sold as a replacement part.

The list of utilities to whom we have sold these parts is enclosed. We are notifying each licensee concurrently with this notice.

The potential problem is that the ferrule was machined with an improper length, resulting in the 45 degree chamfer at the trailing edge to be missing. Laboratory testing of this part has shown that it will leak immediately on gas service, and will hold to about 2.5 times working pressure of the tubing during a hydraulic pressure test.

The improper length was caused by insufficient feedout of the bar on a multiple spindle machine. Our analysis shows that this would be a first part error and that only a small number of ferrules are affected. Our automated assembly equipment is set to reject this condition, and of the parts that were not sent through automated assembly, about one per cent of the lot is included.

Corrective action includes inspection equipment that will 100 per cent identify this short length.

A sales drawing that shows a proper ferrule and one with the short length is enclosed.

If there are any questions, please do not hesitate to contact us.

Sincerely W< I i en an J. Malec Vice President and General Manager 98i0280iiO 98iOi9'oo OSOaOSSS S "

ADQCt4',

PDR Telephone: 440-2484600 Fax: 440%9-5970

SS-503-1 (IVD)

Westinghouse Electric Corp. P.O. ¹ MB-33772 43 pcs. SS-500-6-2BT

¹ Product ID D18GV0197S Repair Replacement Service Florida Power 8 Light PO ¹ 00032836 10 pcs. SS-500-SET

¹ Product ID R18FN0151 St. Lucie Nuclear Plant Mitsubishi Heavy Industries Ltd.

¹ Product ID R17IE0516 Kobe Shipyard 8 Machinery ¹2303944-KG-865564 38 pcs. SS-503-1

S;vagetck Gccy Swage!ck Front

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=riagetok ac.'c 07 Swageick tct

PART NO. 503-1 ACCEPTABLE FULL SIZE 10x SIZE NOT ACCEPTABLE FULL SIZE 10x SIZE mum eT TITLE CUSTOMER DRAWING - DRAWING NOT TO SCALE.

- DIHENSIONS ARE INCHES OVER IH ILL IHETERS) . II

- DRAWING IS SUBJECT TO CHANGE APPROVED DATE SWAGELOK COMPANY WI THOUT NOT I CE. l~ V/~~

fART 503-1

SS-503-1 (IVD)

Westinghouse Electric Corporation PO¹ MB-50337-D 16 pcs. SS-1210-6-5BT ID D18HE0125B Repair Replacement Service 2000 Cheswick Ave Cheswick PA 15024