ML20097J802
| ML20097J802 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 08/14/1984 |
| From: | Tucker H DUKE POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20097J796 | List: |
| References | |
| 01, 1, NUDOCS 8409240031 | |
| Download: ML20097J802 (3) | |
Text
p.
.6-DUKE POWER GOMPANY P.O. HOx 33180 CHARLOTTE, N.C. 28242 IIAI. H. TUCKER TELEPHONE 9,;. Auc 20 All A J
st 14, 1984
= = * =
Mr. James P. O'Reilly, Regional Administrator.
U. S. Nuclear Regulatory Commission
-Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Re: RII:PKV/PHS 50-413/84-56 50-414/84-26
Dear Mr. O'Reilly:
Please find attached a response to Violation No. 413/84-56-01, 414/84-26-01 as identified in the above referenced inspection report. Duke Power Company does not consider any information contained in this inspection report to be proprietary.
Very truly yours, d
(
w Hal B. Tucker LTP/slb Attachment cc: NRC Resident Inspector Catawba Nuclear Station Mr. Robert Guild, Esq.
Attorney-at-Law-P.O. Box 12097 Charleston, South Carolina 29412 Palmetto Alliance 2135h Devine Street Columbia, South Carolina 29205 Mr. Jesse L. Riley-Carolina Environmental Study Group 854 Henley Place Charlotte, North Carolina 28207 8409240031 840831 gDRADOCK 05000413 PDR t
Catawba Nuclear Station Response to Violation 413/84-56-01, 414/84-26-01
RESPONSE
1.
We admit the violation.
2.
CAUSE OF VIOLATION The cause of the violation was a failure to provide adequate controls to effectively implement appropriate requirements of RECO's and Southern Engineering's Welding Quality Program.
(a)
In RECO's case - Failure to insure that welders and welding inspec-tors exercised sufficient diligence in assuring the correctness and acceptability of their welds.
(b)
In Southern Engineering's case - Failure to insure that welders and welding inspectors exercised sufficient diligence in assuring the acceptability of their welds.
3 ACTION (a) Audits of welding programs as well as increased surveillances were performed, which included meetings with the Vendors QA per-sonnel. As a result, several changes were made by RECO to their welding and quality programs to prevent recurrence of these prob-lems.
Southern Engineering qualified their weld inspectors to AWS requirements.
(b)
Increased survelliance activities were performed for the renainder of the contracts, which proved to be effective.
(c) The stress analysis for the boric acid tank was reviewed and the welds were found to be acceptable to meet design conditions.
RECO revised and re-issued thei-drawing D-76-410 Rev. 5 to show the minimum weld size, i
A complete indepth study made on all Nonconformance Iten Reports, Shop, and site Surveillance Reports and selected Inspection Reports provided evidence that all RECO supplied tanks have been evaluated.
(d) All Southern Engineering welds on the remaining frames were In-l spected.
Design Engineering evaluated the conditions reported and concluded the frames were structurally sound as-built.
4.
CORRECTIVE ACTION Southern Engineering has been removed from the Approved Vendors List l
for nuclear safety related welded fabrication.
i l
All future contracts to RECO will be subject to close surveillance with emphasis on their welding program. This action was carried out on a contract for welded pipe, and is now in use on a contract for tanks. The results have proven to be ef fective.
5.
STATUS Full compliance with corrective action has been achieved.