ML19332A967
| ML19332A967 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 08/06/1980 |
| From: | Aswell D LOUISIANA POWER & LIGHT CO. |
| To: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| IEB-79-03A, IEB-79-3A, LPL-14720, NUDOCS 8009190158 | |
| Download: ML19332A967 (2) | |
Text
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NSIC CENTRAL FILES LOUISIANA P O W E R & L I G H T[ P O. 80X 6008 + New CRLeANS. LCU:SIANA 70174 ua asuncNee sraser N$'s sysSe O L ASWEL August 6, 1980 va %.mm,w %eucum LPL 14720 Q-3-A20.03.13 Mr. Karl V. Seyfrit, Director, Region IV U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement 611 Ryan Plaza Drive, Suite 1000 Arlington Texas 76012
SUBJECT:
Waterford 3 SES Docket No. 50-382 IE Bulletin 79-03A Longitudinal Weld Defects in ASME SA-312, Type 304 Stainless Steel Pipe
Dear Mr. Seyfrit:
We have reviewed the subject IE Bulletin concerning the possibility of existence of undetected longitudinal weld defects in ASME SA-312 Type 304 Stainless Steel Pipe.
LP&L investigated this matter and determined that our Waterford 3 SES project site has purchased 100 feet - 10 inches (5 - 20 ft. random length pieces) of 10 inch Sch 40, SA-312, Type 304 welded pipe from SWEPC0 Tube Corporation.
The status of this material is:
A.
98 feet - 4 3/4 inches - not installed, stock material on HOLD in Ebasco storage.
B.
13% inches - installed as part of piping shown on IC-24 (4305-3 R13) and subsequently removed.
C.
6 inches - installed as part of piping shown on IC-24 (4305-3 R13) and subsequently removed.
D.
Ik inches - consumed making 5 cuts.
E.
9 inches - discarded by Tompkins-Beckwith after making some practice welds.
The two pieces, B and C above, were installed in the Containment Spray System (Safety Class 2, in RAB).
The problem was discussed at length with our A/E and on their recommendations these two pieces were removed.
8009190/5P-g
cr Mr. Karl-.V. Seyfrit LPL 14720 Page.2 Our~A/E does not recommend using this material because of potential cracking at the weld because of centerline lack of weld penetration (CLP).
- We have, therefore, initiated efforts to' remove the remaining materials from the site and instructed that no welded SA-312, Type 304 materials be used at Waterford 3 SES project.
If you have any questions on the above, please contact us.
Yours very truly, D. L. Aswell-DLA:IH:sg cc: Director U. S. Nuclear Regulatory Commission
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Division of Reactor Construction Inspection Washington, D. C.
20555 1