ML20004F946

First Interim Deficiency Rept,Originally Reported on 810520, Re Internal Lack of Fusion on Navco Spool Piece.Cause Unknown.Analysis to Determine Safety Significance in Progress

ML20004F946
Person / Time
Site:	Bellefonte
Issue date:	06/19/1981
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8106260326
Download: ML20004F946 (2)

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Mr. James P. O'Reilly, Director p-u.s m - m Office of Inspection and Enforcement 50 " 558" g

U.S. Nuclear Regulatory Commission Region II - Suite 3100 101 Marietta Street

'b Atlanta, Georgia '30303

DearMr.b'Reilly:

BELLEFONTE NUCLEAR Pl>5 UNIT 1 - IFfFRNAL LACK OF FUSION W NAVC0 SPOOL

-PIECE - BLRD-50-4?Ord1 FIRST IFfERIM REPORT The subject deficiency was initially mported to WRC-0IE Inspector R. V. Crlenjak on May 20, 1981, in accordance with 10 CFR 50.55(e) as NCR 1467. Enclosed is our first interia mport. We expect to submit our next report by August 26, 1981.

If you have any questions concerning this matter, please get in touch with i.

D. L. Lambert at FIS 857-2581.

I Very truly yours, TENNESSEE VALLET AUTHORITY l

l l

L. M. Mills, Manager l

Nuclear Regulation and Safety l

Enclosure oo: Mr. Victor Stello, Jr., Director (Enclosure)

Office of Inspection and Enforceaant U.S. Nuclear Regulatory Commission l

Washington, DC 20555 l

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-k de ENCLOSURE -

BELLEFONTE NUCLEAR PLANT UNIT-1 INTERNAL LACK OF FUSION ON NAVC0_ SPOOL PIECE BLRD-50-438/81-40' 10 CFR 50.55(e)

FIRST INTERIM REPORT.

Description of Deficiency An internal lack' of ' fbsion, "approximately 1/8 inch wide' and 21 inches -

long,1was discovered during the installation 'of a spool piece supplied

. by NAVCO. Ihis internal-lack of fusion was found during the.

radiographyLof a circumferential butt weld. The radiograph overlapped an adjacent longitudinal weld 'of the spool piece and indicated that 'it exhibited the ' lack of weld fusion. The spool piece is 12 inches in diameter, stainless steel SA312-TP304 welded pipe located. in the Spent 1 Fuel Cooling System.

Interim Progress

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TVA is : performing-an analysis'in order to determine the safety significance of this condition.

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