ML17275A722

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Suppls 800909 Response to IE Bulletin 79-03A, Longitudinal Weld Detects in ASME SA-312,Type 304 Stainless Steel Pipe. No safety-related Sys Utilize Specified Pipes Subj to Greater than 85% of ASME Code Allowable Stresses
ML17275A722
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 10/31/1980
From: Renberger D
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To: Engelken R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
ELE-KAH-80-050, ELE-KAH-80-50, ORN-79-03A, ORN-79-3A, NUDOCS 8012030763
Download: ML17275A722 (1)


Text

+I'ashington Public Power Supply System A JOINT OPERATING AGENCY P. O. OOX 906 3000 GEO. WASNINOTON-WAT RICHI.*NO, WASHINGTON 99353 October 31, 1980 ELE-KAH-80-050 c7 r",

Docket No. 50-397 C/0 I

c/Ir'n, CV +Cij Cg C= ~CJ Nr. R. H. Engelken, Director

~~~ C/l

+ AC U. S. Nuclear Regulatory Commission ~IUr Region V 1990 N. California Boulevard CP lQ Suite 202 Walnut Creek Plaza 5 Walnut Creek, California 94596

Dear I"1r. Engelken:

Subject:

WPPSS NUCLEAR PROJECT NO. 2 RESPONSE TO IE BULLETIN 79-03A Ref: Letter, D. L. Renberger (WPPSS) to R. H. Engelken (NRC), same subject, dated September 9, 1980.

In the referenced letter, we indicated our intention to complete a review of contractor material lists for use of SA-312 or A-312, Type 300 Series fusion welded pipe. As a result of that review, we have discovered that some SA-312 and A-312, Type 300 Series fusion welded pipe had been installed in safety-related systems. However, no safety-related system is subject to design stresses greater than 85 percent of the ASt1E Code allowable stresses. Furthermore, only one system has been identified for which the ends of the piping could be etched. A program has been established to perform the etching.

The results of the etching will be forwarded to both the manufacturer and the NRC when they become available.

Very truly yours, D. L. Renberger Assistant Director, Technology cc: Office of ISE, Division of RCI--Washington, D.C.

W. Woods, NUS N. S.. Reynolds, DSL