ML20083M925
| ML20083M925 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 01/24/1983 |
| 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, 10CFR-50.55E, NUDOCS 8302010500 | |
| Download: ML20083M925 (2) | |
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TENNESSEE VALLEY A'JTHORITY CH ATTANOOG A, TENNESSEE 37401 400 Chestnut Street Tower II January 24, 1983 BLRD-50-439/82-63 O
U.S. Nuclear Regulatory Commission 3
Y Region II N"
Attn:
Mr. James P. O'Reilly, Regional Administrator
[,
101 Marietta Street, Suite 3100 p
Atlanta, Georgia 30303
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Dear Mr. O'Reilly:
N BELLEFONTE NUCLEAR PLANT UNIT 2 - LINEAR INDICATIONS IN NAVC0 SPOOL PIECES -
BLRD-50-439/82 SECOND INTERIM REPORT
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The subject deficiency was initially reported to NRC-0IE Inspector D. Quivt or. September 24, 1982 in accordance with 10 CFR 50.55(e) as NCR 1985. This was folloued by our first interim report dated October 5,1982.
Enclosed is our second interim report. We expect to submit our next report on or about May 18, 1983 We consider 10 CFR Part 21 applicable to this deficiency.
If you have any questions concerning tSis ratter, please Eet in touch with R. H. r*1 ell at FTS 858-2668.
Very truly yours, TENNESSEE VALLEY AUTHORITY DS h L. M. Mills, Manager Nuclear Licensing Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 y1cIAl.CQ
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8302010500 830124 DR ADOCK 05000
[M An Equal Opportunity Employer
m ENCLOSURE BELLEFONTE NUCLEAR PLANT UNIT 2 LINEAR INDICATIONS IN NAVC0 SPOOL PIECES NCR 1986 BLRD-50-439/82-63 10 CFR 50.55(e)
SECOND IIC'ERIM REPORT Description of Deficiency Several linear indications 1/32 to 1/4 inches in depth and 2-1/2 to 19 inches in length were found in the base material (outside surface) of six (6), 8-inch od Schedule 120, ASME SA 106, grade B piping spools. These indications were rioticed by TVA personnel during installation and inspec tion. The spools are part of six (6) ASME III Class 2 piping subassemblies fabricated by National Valve and Manufacturing Company (NAVCO), Pittsburgh, Pennsylvania, using piping manufactured by the United States Steel Company..All six spools were. manufactured from the.same.....,
material heat log (i.e., Heat Code No. L 63687). The depth of some
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portions of the linear indications exceed the depth allowed by ASME Section II, Part A, Material Specification, ASME SA 106, paragraph 20.1, and are J
considere 1, defects, v.g., y,
o...a.. 4.# utg,,1gg,,,,.j$;M!!';Q?? 'Uf' ^lT"M';2!!' T]ft4;< t? Mig?ygmyl;g:gfjg " y ; ' p '
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,u%wg,,,,,.. 7 TVA 'is still"iit"the process of evaluating' the sub' ject deficiency. TVA has dispositioned the deficient spool pieces specifically cited in the NCR.
However, TVA has not yet determined the most appropriate means for investigating the generic implications of additional deficient spool pieces.
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