ML19345G740
| ML19345G740 | |
| Person / Time | |
|---|---|
| Site: | Yellow Creek  |
| Issue date: | 04/07/1981 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-81-400-000 10CFR-050.55E, 10CFR-50.55E, PT21-81-400, PT21-81-400-000, YCRD-50-566-81, YCRD-50-567-81, NUDOCS 8104220206 | |
| Download: ML19345G740 (2) | |
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TENNESSEE VALLEY AUTHORITY 4#
. CH ATTANOOGA. TENNESSEE 37401
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- 400 Chestnut Street Tower II April 7, 1981 i
ICRD-50-566/81-06 TCRD-50-567/81-04 l
Mr. James O'Reilly, Director z
Office of Inspection and Enforcement U.S. Nuclear kegulatory C-4 asion Regim II - Suite 3100 101 Marietta Street Atlanta, Georgia 10303
Dear Mr. O'Reilly:
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l IELLOW CREEE NUCLEAR PLANT UNITS 1 AND 2 - IEFICIENT WELDS ON COMPONENT COOLING WATER HEAT EXCHANGERS - TCRD-50-566/81-06, ICRD-50-567/81 '
FIRST INTERIM REPORT The subject deficiency was initially reported to NRC-CIE Inspector J. Crlenjak on March 6,1981, in accordance with 10 CFR 50.55(e) as NCR TC-160. 7.nclosed is cur first interim report. We expect to submit our next report by October 6,1981. We consider 10 CFR Part 21 to be applicable to.this deficiency.
If you have any questims concerning this matter, please get in touch with D. L. Lambert at FT3 857-2581.
Very truly yours, TE1BIESSEE Y AUTIK)RITT L. M. Mills, Manager Nuclear R@ tion and Safety 1
l Enclosun l
oo: Mr Yintar Stallo. Jr.. Director (Enclosure)
Office of Inspectim and Enfora*= ant U.S. Nuclear Regulatory Commission u==hiaston, DC 20555 N-P00R BRIGINAL An Eaual Oc;criunity E ci:yer l-.
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4 ENCLOSURE YELLOW CREEK NUCLEAR PLANT UNITS 1 AND 2 DEFICIENT WELDS ON COMPONENT COOLING WATER HEAT EXCHANGERS TCRD-50-566/81-06, YCRD-50-567/81-04 10 CFR 50.55(e)
- i FIRST INTERIM REPORT i
Description of Deficiency During a recent NRC inspection of the component cooling water heat exchangers at the Yellow Creek Nuclear Plant, it was reported that various welding deficiencies existed on the welds and base metal for the 24" stainless steel nossles and manhole to exchanger welds. The various deficiencies noted were are strikes, weld splatter, slag, overlap, lack of fusicn, undercut, and excessive weld metal. The component cooling water heat exchangers were manufactured by the Joseph Oat Cc pany and p.trehased by T7A frem Cc=bustica Engineering.
Corrective Action On March 19, 1981, a field inspectica was conducted of the component cooling water heat exchangers. The areas reported as having deficient welds otre inspected by embers of TVA, the Authorized Nuclear Inspector, and the repMsentatives of the Joseph Oat Co:pany and Cc bustion Engineering. The noted defects appear to be confined to the surface and will probably be re=cved by grinding. Jcseph Cat's representative stated that he would report his findings 'A his managenent with the rece=mendation that the areas in question be I
repaired and inspected as necessary.
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