ML20064H400

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Sixth Interim Deficiency Rept Re Chattanooga Bolt & Screw Stainless Steel Nuts & Bolts Failing to Meet ASTM Specs. Initially Reported on 810924.Evaluation Continuing.Next Rept Expected by 830426.Also Reportable Under Part 21
ML20064H400
Person / Time
Site: Bellefonte  Tennessee Valley Authority icon.png
Issue date: 01/07/1983
From: Mills L
TENNESSEE VALLEY AUTHORITY
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-PT21-83 10CFR-050.55E, NCR-1597, NCR-1598, NUDOCS 8301170066
Download: ML20064H400 (2)


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TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 37401 400 Chestnut Street Tower II January 7, 1983 7b.l!" l0 PQ, 3 b BLRD-50-438/81-64 BLRD-50-439/81-62 U.S. Nuclear ReZulatory Commission Region II Attn:

Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

j BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - BOLTS AND NUTS FAIL TO MEET ASTM SPECIFICATIONS - BLRD-50-438/81-64, BLRD-50-439/81 SIXTH INTERIM i

REPORT The subject deficiency was initially reported to NRC-0IE Inspector R. V. Crlenjak on September 24, 1981 in accordance with 10 CFR 50.55(e) as NCR's 1597 and 1598. This was followed by our interim reports dated October 22 and December 8,1981 and February 19, June 29, and September 27, 1902. Enclosed is our sixth interim report. We expect to submit our next report by April 26, 1983 We consider 10 CFR Part 21 applicable to this deficiency.

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If you have any questions concerning this matter, please get in touch with R. H. Shell at ETS 858-2688.

Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills Manager Nuclear Lic nsing i

Enclosure cc:

Mr. Richard C. DeYoung, Director (Enclosure)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.

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e-ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 BOLTS AND NUTS FAIL TO MEET ASTM SPECIFICATIONS NCR'S 1597 AND 1598 BLRD-50-438/81-64, BLRD-50-439/81-62 10 CFR 50.55(e)

SIXTH Ih""ERIM REPORT Description of Deficiency 10,000, 3/4" stainless steel nuts (furnished by Chattanooga Bolt and Screw, Chattanooga, Tennessee) and 10,600, 3/4" x 3-1/2" stainless steel bolts (furnished by Challenge Enterprises, Chattanooga, Tennessee) were received not marked in accordance with ASTM specifications. Subsequent testing of the subject material by Singleton Materials Engineering Laboratory revealed the material failed to meet ASTM specifications. The associated documentation received with the material erroneously indicated that the nuts and bolts do meet ASTM specifications. Approximately 450 of these bolts and 1300 nuts have been issued to the field for installation.

Nonconformance report (NCR) 1597 pertains to the bolts and NCR 1598 pertains to the nuts.

Interim Progress TVA is continuing its evaluation of the analysis of the stainless steel nuts and bolts. More information will be forwarded in the next report.

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