ML20153E418

Requests NRC Concurrence to Use ASME Section XI Code Case N-416 to Avoid Addl Hydrostatic Test on Secondary Loops C & D Because of Minor Weld Buildup to Repair Steam Cutting on Steam Generator C & D Secondary Manway Flange Faces

ML20153E418
Person / Time
Site:	Callaway
Issue date:	02/20/1986
From:	Schnell D UNION ELECTRIC CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
ULNRC-1260, NUDOCS 8602250029
Download: ML20153E418 (3)

Text

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M B.ECTRIC con #ANY 1901 Grotiot Street St totas Donald F. Schnen vee Reaknt February 20, 1986 i

Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission j washington, D.C. 20555

Dear Mr. Denton :

ULNRC-1260 CALLAWAY PLANT DOCKET NUMBER 50-483 LICENSE NUMBER NPF-30 REQUEST _.FOR USE OF ASME CODE CASE N-416 1

f Union Electric Company is submitting this letter to request 4 the concurrence of the Nuclear Regulatory Commission to use ASME Section XI Code Case N-416 entitled " Alternative rules for Hydrostatic Testing of Repair or Replacement of Class 2 Piping."

Use of this Code Case would allow Union Electric to avoidincluding an additional hydrostatic test on secondary loops C and D, the steam generators, because of minor weld buildup to repair steam cutting experienced on steam generator C and D secondary manway flange f aces.

> This repair activity, which includes repl6coment of the manway cover itself, is scheduled for the refueling outage in March, 1986. Af t er discussions with the Callaway NRC Project Manager, Union Electric was informed that Code Case N-416 has been reviewed by the NRC and found acceptable for future Since the subject ASME incorporation as an approved Code Case.

Code Case is not currently listed in Regulatory Guide 1.147 as an approved Code Case, Union Electric is requesting timely NRC l

concurrence for use as described during the March, 1986 outage.

Very truly yours, l ;UY-Donald F. Schnell RPW/kc DOC ,{

'e g Mailing Address- RO Box 149, St. Lous MO 63166 J

STATE OF MISSOURI )

) SS CITY OF ST. LOUIS )

Donald F. Schnell, of lawful age, being first duly sworn upon oath says that he is Vice President-Nuclear and an officer of Union Electric Company; that he has read the foregoing document and knows the content thereof; that he has executed the same for and on behalf of said company with full power and authority to do so; and that the facts therein stated are true and correct to the best of his knowledge, information and belief.

g By_ Donald F."Schnell Vice President Nuclear SUBSCRIBED and sworn to before me this 8 day of r , 198 6.

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BARBAR l-f' FAFF nouay Pusuc. STATE OF MISSOURI NY C0 pud 510N EXPtRES APRIL 22. 1989 ST. LOUIS COUNTY i

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cc: Gerald Charnoff, Esq.

Shaw, Pittman, Potts & Trowbridge 1800 M. Street, N.W.

Washington, D.C. 20036 Nicholas A. Petrick Executive Director SNUPPS 5 Choke Cherry Road Rockville, Maryland 20850 C. W. Hehl Division of Projects and Resident Programs, Chief, Section lA U.S. Nuclear Regulatory Conmission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Bruce Little Callaway Resident Office U.S. Nuclear Regulatory Commission RRil Steedman, Missouri 65077 Paul O'Connor Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 316 7920 Norfolk Avenue Bethesda, MD 20014 J