ML20093C781
| ML20093C781 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 09/21/1984 |
| From: | Koester G KANSAS GAS & ELECTRIC CO. |
| To: | Hunter D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| IEB-79-03, KMLNRC-84-163, NUDOCS 8410100715 | |
| Download: ML20093C781 (2) | |
Text
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KANSAS GAS AND ELECTRIC COMPANY THE ELECTSVC COMPANY OLENN L 8L O E S T E ft v.c s pers.ces,. seucteam s
September 21, 1984 Mr. D.R. Hunter, Chief Reactor Project Branch 2 U.S., Nuclear Regulatory Commission g
c;,y7gg Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 f)
KMLNRC 84-163 Re:
Docket No. STN 50-482 l
Ref:
Interim Report KMLNRC 84-018 dated 2/17/84 l
from GLKoester, KG&E, to JEGagliardo, NRC Subj: Potential 10CFR50.55(c) Final Report -
Longitudinal Weld Defects l
Dear Mr. Ilunter:
This letter provides the final report on a potential 10CFR50.55(e) i concerning stainless steel pipe welded without filler material. This l
matter was initially reported by Mr. liarold Chernoff of Kansas Gas and l
Electric Company (KG&E) to Mr. Michael Murphy of the Nuclear Regulatory l
Commission, Region IV, on January 20, 1984.
l The potential for weld defects in pipe welded without filler material l
was first identified in I&E Bulletin 79-03, " Longitudinal Weld Defects in ASME SA-312, Type 304 Stainless Steel Pipe...".
As a result of this Bulletin, all SA-312, Type 304 stainless steel pipe at Wolf Creek
(
Generating Station was downgraded for use only in non-safety-related f
systems. IIowever, a few instances were discovered where this material
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had been used in safety-related applications.
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Bulletins 79-03 and 79-03A indicated that piping of the type described could be utilized in locations where design hoop stress did not exceed l
85% of the hoop stress allowed by ASME code. An investigation into this matter revealed that none of the subject piping was installed where design hoop stresses would exceed 85% of the ASME Code allowable stresses. In addition, all Constructor procured SA-312, Type 304 stainless steel pipe was identified and removed from the !! eat Code Printout as ASME pipe class material to prevent future inadvertent use.
84101%0h 2
201 N. Markst. -Wictuta, Kansas - Mad Address: PO. Box 208 l b%chita. Kansas 67201 - Telephone: Area Code (316) 261-6451
+.
e Mr. D.R. Hunter KMLNRC 84-163 September 21, 1984
' As a result of the aforementioned activities, KG&E deems that no further action is necessary. If you have any questions concerning this matter, please contact me or Mr. Otto Maynard of my staff.
I'-
Yours.very truly, r$N I
Glenn L. Koester Vice President - Nuclear I.
I f
l GLK bb
-)
xc RCDeYoung i
PO'Connor HBundy i
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