ML20086N188
| ML20086N188 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 10/25/1983 |
| From: | Bornes R, Goodwin B SOUTHWEST FABRICATING & WELDING CO. (SUBS. OF IU |
| To: | Potapovs U NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| REF-PT21-84-114-000 PT21-84-114, PT21-84-114-000, NUDOCS 8402170279 | |
| Download: ML20086N188 (2) | |
Text
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SOUTHWEST FABRICATING
& WELDING CO., INC.
October 25, 1983
& hY _-.
OCT211983 L
Director, Office of Inspection & Enforceent
(
h, U. S. Nuclear Regulatory Ccamission Region IV j\\
l 611 Ryan Plaza Drive, Suite 1000
.i.,w p -
J Arlingtm, Texas 76011
_"~
Attention: Mr. Uldis Potapovs, Q1ief Vendor Inspection Branch
Reference:
SF&WCO Letter dated 10-17-83 10 CFR Part 21 - Reporting of Defects & Nonculpliance C;xolina Light & Power Canpany Shearon Harris Station - Unit #1 Cmstructor: Daniels Construction Co.
Engineer: Ebasco Services
Subject:
Fabrication of Piping Subassenblies having Wall Thickness less than Rcquircd by Design Specifications Gentlemen:
The referenced Southwest letter reported two piping subassanblies fabricated frcm 3" Schedule 40 material, in lieu of 3" Schedule 160, as required by design specifications.
Southwest's engineering department has conducted a complete investi-gation of nuclear iscretric drawings for this contract and found ne other deviations. We investigation was conducted as follows:
1.
The iscmetric assignment log was used to idmtify nuclear isanetrics.
2.
Individual nuclear iscmetrics were reviewed to isolate those drawings that cmtained specification breaks and/or piping schedule change.
3.
ne isometric assignment log has been trarked to identify all nuclear iscmetrics and assure ccmplete coverage.
- 0 7525 Sherman Street P.O. Box 9449 Houston, Texas 77261-9449. (713) 928-3451 TWX: 910 881-1600 8402170279 831025 PDR ADOCK 05000400 0
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9 n p SOUTHWEST FABRICATING
- t WELDWG CO, DC. -
Nuclear Regulatory Ccrimission October 25, 1983 Page 'IWo 4.
Each iscanetric that contrined a piping schedule change was set aside for redew and listed for reference and control.
5.
Shop detail drawings vure ccupared to the respective iso-metrics that containec' a piping schedule change.
6.
No deviatims were found other than those previously identi-fied on Isometric No.1-CS-265, and Southwest's Shop Drawings Q3302-AK Sheets 21 and 22.
Since this error was isolated to work performed by specific personnel involved in this contract only, and based upon the fact that no addi-tional deviations were disclosed by our investigation, southwest Fabricating & Welding Co. considers this incident to be closed.
You may ccntact the writer if additional information is rquired.
Yours very truly, h
WY
~
M Robert P. Bornes B. JfGoodwin,' President anci Quality Assurance Manager Chier Executive Officer RPB:dc cc: Carolina Pcuer & Light Ccmpany Attn:
Mr. N. J. 01iangi Post Office Box 101 New Hill, NC 27562
.