ML20076F946
| ML20076F946 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 05/12/1983 |
| From: | Tucker H DUKE POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20076F937 | List: |
| References | |
| NUDOCS 8306140502 | |
| Download: ML20076F946 (3) | |
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. clotl "i DUKE POWEn GoMI.WNY')EOPGIA P.O. DOx 33100 e'
CIIAHLOTTE, N.C. 28242 IIAL II. TUCKER TE R.E PIIOM E (704) 073-45:M vum.ammion=v e.
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Mr. James P. O'Reilly, Regional Administrator U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303 l
Re: RII:JWY 50-413/83-04 50-414/83-04
Dear Mr. O'Reilly:
Please find attached a response to Violation No. 413-414/83-04-01 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,
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Hal B. Tucker RWO/php Attachment cc:
Mr. P. K. Van Doorn NRC Resident Inspector Catawba Nuclear Station Mr. Robert Guild, Esq.
Attorney-at-Law P. O. Box 12097 Charleston, South Carolina 29412 Palmetto Alliance 2134 Devine Street Columbia, South Carolina 29205 r306140502 830527 PDR ADOCK 05000413 g
i DUKE POWER COMPANY CATAWBA NUCLEAR STATION Violation:
is a result of the inspection conducted on March 15-18, 1983, and in accordance with the NRC Enforcement Policy, 47 FR 9987 (March 9, 1982),
the following violation was identified.
10 CFR 50, Appendix B, Criterion V as implemented by Duke Power Company (DPC) Topical Report " Duke 1-A",
Section 17, Paragraph 17.1.5, requires in part that activities affecting quality be accomplished in accordance with instructions, procedures, or drawings. Drawing Nos. CN-1491-NV104-R and 1-R-NV-1385 give the location and location tolerances for Hanger No. 1-R-NV-1385.
Contrary to the above, activities affecting quality were not being accomplished with documented drawings in that QC accepted Hanger No. 1-R-NV-1385 was found at a location outside the one required by the appropriate drawings.
Response
(1) The QA inspections group inspected and accepted Hanger No. 1-R-NV-1385 with the location outside of the tolerance required by Drawing No.
1-R-NV-1385.
(2) The majority of the hangers have a location that is shown on an isometric drawing. A general tolerance that is given in our erection Specification No. CNS-1206.00-04-003 is normally applied to this location. For approximately 10% of the hangers, a special location tolerance is specified on the hanger detail drawing. There is no indication on isometric drawings that the special location tolerance exists on hanger detail drawings. Hanger No. 1-R-NC-1380 is one of the hangers with a special location tolerance.
Reviews with craftsmen and QA inspectors have determined that they understand the use of a special location tolerance. Therefore, this error was an oversite which can be attri'auted, in part, to the mant.er in which information was provided and the infrequent use of the special tolerance.
(3) The discrepancy with Hanger No. 1-R-NV-1385 was recorded on Nonconforming Item Report No. 16516 and forwarded to Design Engineering for evaluation.
The present location was found acceptable.
The QA inspectors were reinstructed in the recognition and application of special location tolerances.
A sample of 80 hangers with special location tolerances were selected and evaluated for proper location. An additional three hangers (Hanger Nos. 1-R-NS-1055, 1-R-NS-1219, and 1-R-NI-1264) were found to have locations outside of the tolerances given in the appropriate drawings.
I These discrepancies were reported on Nonconforming Item Report No. 16638. Due to the sample size and results received from the evaluation, conclusions about the scope of the problem cannot be determined.
(4) The drawings for Unit 1 are essentially complete. A list of all the hangers with special location tolerances (approx. 3500) will be developed for Unit 1 and a sample of 200 hangers will be selected.
The location of the 200 hangers will be evaluated and the necessity for further evaluation will be determined.
Commencing on June 1,1983, all Unit 2 isometric drawings issued for Construction for hangers with special location tolerances on the hanger detail drawings will reference the special location tolerances. Any Unit 2 isometric drawings issued prior to June 1, 1983 will be revised to reference any special location tolerance by June 30, 1983.
The craf t will be reinstructed to be more proficient in the recognition and application of special location tolerances.
(5) The completion of the corrective actions will be achieved by June 30, 1983.
Final Report will be submitted by July 31, 1983.
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