ML20008E019

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Submits Addl Info in Response to IE Bulletin 79-03A, Longitudinal Weld Defects in ASME SA-312,Type 304 Stainless Steel Pipe. All Piping in Question Is Subj to Stress Levels Less than 85% of Code Allowable
ML20008E019
Person / Time
Site: Perry  FirstEnergy icon.png
Issue date: 09/29/1980
From: Davidson D
CLEVELAND ELECTRIC ILLUMINATING CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
IEB-79-03A, IEB-79-3A, NUDOCS 8010240070
Download: ML20008E019 (1)


Text

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L.\\ ;! B d 1. 5 0 D.10 ! L L u n11 M ATI N G C O M P A M Y ILLUMINATING BLDG, o PUBLIC SOUARE e CLEVELAND. OHIO 44101 e TELEPHONE (216) 623-13% e Mall ADDRESS: P. O. BOX 5000 Somng The Best Local; n in the Nation Datwyn R. Davidson VICE PRESIDENT SYSTEM ENGINEERING AND CoNSTRUCTloN r -

September 29, 1980

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Mr. James G. Keppler, Director Ib I

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.., ;i I ~ ~~j Region III Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Glen Ellyn, IL 60137 Re: Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Construction Permit Nos.

CPPR-148; CPPR 149

Dear Mr. Keppler:

IE Bulletin No.79-03A As discussed in our September 8 letter, we submit the following additional information in response to IE Bulletin No.79-03A.

We have further e 1 ated the piping inside the reactor vessel which is fabricated from SA-312 or A-312 material. The comporents included are the RHR coupling elbow and extension, HPCS/LPCS core spray line, reactor in-core guide tube, jet pump riser, CRD mag housing, and the HPCS/LPCS core spray sparger.

After analysis by the NSSS vendor, it has been determined that all of the piping in question is subject to stress levels less than 85 percent of the Code allowable stresses at either design pressure / temperature or combined loadings for normal operating conditions. Therefore, the concerns and et'ch testing requirements of the bulletin are not applicable.

f If you need additional information, please let me know.

Very truly yours,

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Dalwyn. Davidson Vice President System Engineering and Construction cc:

U. S. Nuclear Regulatory Commission Office of Inspection & Enforcement Division of Reactor Construction Inspection Washingten, D.C.

20555 U.S. Nuc1 car Regulatory Commission c/o Document Management Branch Washington, D.C.

20555 8 01024o 0 7 0 OCT 6 1980