ML20205G130
| ML20205G130 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 10/29/1985 |
| From: | Hufham J TENNESSEE VALLEY AUTHORITY |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NCR-BLN-4490, NUDOCS 8511130140 | |
| Download: ML20205G130 (2) | |
Text
s TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 37401 400 Chestnut Street Tower II 35 c! I All I5 October 29, 1985 BLRD-50-438/85-28 BLRD-50-439/85-26 U.S. Nuclear Regulatory Commission Region II Attn:
Dr. J. Nelson Grace, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323
Dear Dr. Grace:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - PIPING COMPONENT SUPPORT WELDS DO NOT MEET INSPECTION CRITERIA - BLRD-50-438/85-28 BLRD-50-439/85 FIRST INTERIM REPORT The subject deficiency was initially reported to NRC-OIE Inspector Al Ignatonis on September 27, 1985 in accordance with 10 CFR 50.55(e) as NCR 4490. Enclosed is our first interim report. We expect to submit our next report no later than six months before unit 1 fuel loading.
If you have any questions, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEgVALLEYAUTHORITY f..d.%
W. Hufham, Manager Licensing and Risk Protection Enclosure cc:
Mr. James Taylor, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 8511130140 851029 PDR ADOCK 05000438 S
'05iciaL Copy u
An Equal Opportunity Employer gg
o o-ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 PIPING COMPONENT SUPPORT WELDS DO NOT MEET INSPECTION CRITERIA BLRD 50-438/85-28 AND BLRD 50-439/85-26 NCR BLN 4490 10 CFR 50.55(e)
FIRST INTERIM REPORT Description of Deficiency As a result of investigations associated with NCR 1968, some of the welding workmanship on piping component supports which were approved during the inspection period of May 1, 1980 through July 31, 1981, were found to not meet the inspection criteria specified in G29C and G29M.
The cause of this deficiency was inadequate training of the weld inspectors with respect to visual examinations.
Interim Progress TVA has conducted a sampling of approximately 500 welds. A total of 83 welds were identified as not meeting the acceptance criteria specified in G29C and G29M.
Action required to prevent recurrence of this deficiency has been completed.
Visual QA certification of all welding QC inspectors was accomplished between September 1981 and October 1981. Also, the result.s of visual inspection audits which are performed on a continuing basis have indicated that inspectors are accurately performing G29C and G29M inspections.
TVA's Office of Engineering (OE) is evaluating the results of t'he sampling and will provide a correction method. A final report will be provided upon the completion of the OE evaluation, but no later than one year before fuel load of unit 1.
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