ML20217K623

Forwards SE Accepting Licensee 971015 Submittal Re Evaluation of Flaw in Nozzle Shell to Intermediate Shell Weld of Braidwood,Unit 2,reactor Pressure Vessel

ML20217K623
Person / Time
Site:	Braidwood
Issue date:	04/20/1998
From:	Stewart Bailey NRC (Affiliation Not Assigned)
To:	Kingsley O COMMONWEALTH EDISON CO.
Shared Package
ML20217K626	List: ML20217K623 ML20217K633
References
NUDOCS 9805040044
Download: ML20217K623 (5)

Text

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April 20, 1998 Mr. Oliver D. Kingsley, President Nuclear Generation Group Commonwealth Edison Compey Executive Towers West til 1400 Opus Place, Suite 500 Downers Grove, IL 60515

SUBJECT:

BRAIDWOOD, UNIT 2, REACTOR VESSEL INSPECTION SHELL WELD INDICATION EVALUATION

Dear Mr. Kingsley:

By letter dated October 15,1997, Commonwealth Edison Company (Comed) submihed, for NRC review, its evaluation of a flaw in the nozzle shell to intermediate shell weld of the Braidwood, Unit 2, reactor pressure vessel. Additional information was provided by letter dated November 25,1997. The flaw was found by ultrasonic testing (UT) conducted during the sixth refueling outage (A2R06) in fall 1997. The examination was performed to satisfy the requirements of the 10-year inservice inspection (ISI) in compliance with the 1983 edition of Section XI of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (Code). The submittal indicates that this flaw exceeds the allowable flaw size specified in IWB-3500 of Section XI of the ASME Code and requires flaw evaluation using IWB-3610 of the ASME Code.

The staff has completed its review and found the submittal acceptable. The staff concluded the )

l reported flaw is acceptable without repair for continued operation. The safety evaluation is enclosed.

Sincerely, l

Original signed by:

l Stewart N. Bailey, Project Manager Prcject Directorate 111-2 Division of Reactor Projects - lil/IV Office of Nuclear Reactor Regulation

Docket No. STN 50-457 l

j.

Enclosure:

As stated g q

m. g . g% % < u. mu g/ y cc w/ encl: See next page DISTRIBUTION:

Docket File PUBLIC PDill-2 r/f E. Adensam (EGA1) S. Richards C. Moore - S. Bailey K. Wichman OGC,015B18 S.Sheng ACRS, T2E26 M. Jordan, Rlli \))

DOCUMENT NAME: G:\CMNTSP\ BRAID \BR99784.LTR To receive e copy of this document, Indicate in the b : *C" = Copy .vithout enclosures *E* = Copy with enclosuroe "N"

= No copy h.G d f OFFICE PM:PDill-2 4- <LA@ Dill @ GO:PDill-2 d NAME SBAILEY:spsAb M OR$ SRICHARDS @ {'

DATE 04/ / 7 /98 04/ G /98 04/ Ot> /98 OFFICIAL RECORD COPY 9905040044 990420 PDR ADOCK 05000457 P PDF j

April 20, 1998 Mr. Oliver D. Kingsley, President Nuclear Generation Group Commonwealth Edison Company )

Executive Towers West lli 1400 Opus Place, Suite 500 Downers Grove, AL 60515

SUBJECT:

BRAIDWOOD, UNIT 2, REACTOR VESSEL INSPECTION SHELL WELD INDICATION EVALUATION

Dear Mr. Kingsley:

By letter dated October 15,1997, Commonwealth Edison Company (Comed) submitted, for NRC review, its evaluation of a flaw in the nozzle shell to intermediate shell weld of the Braidwood, Unit 2, reactor pressure vessel. Additional information was provided by letter dated November 25,1997. The flaw was found by ultrasonic testing (UT) conducted during the sixth refueling outage (A2R06) in fall 1997. The examination was performed to satisfy the 1equirements of the 10-year inservice inspection (ISI) in compliance with the 1983 edition of Section XI of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (Code). The submittal indicates that this flaw exceeds the a!icwable flaw size specified in IWB-3500 of Section XI of the ASME Code and requires flaw evaluation using IWB-3610 of the ASME Code.

The staff has completed its review and found the submittal acceptable. The staff concluded the reported flaw is acceptable without repair for continued operation. The safety evaluation is enclosed.

Sincerely.

Original signed by: )

i Stewart N. Bailey, Project Manager i Project Directorate lll-2 Division of Reactor Projects - lil/lV Office of Nuclear Reactor Regulation Docket No. STN 50-457

Enclosure:

As stated cc w/ encl: See next page i

DISTRIBUTION:

Docket File PUBLIC PDill-2 r/f E. Adensam (EGA1) S. Richards i C. Moore S. Bailey K. Wichman OGC,015B18 S.Sheng ACRS, T2E26 M. Jordan, Rlli DOCUMENT NAME: G:\CMNTSP\ BRAID \BR99784.LTR To resolve e sepy of this document,indioete in the  : "c" = Copy without enclosures *E* = Copy with enclosures *N"

- No copy OFFICE PM:PDill-2 4 ,LMOlll& GO:PDill-2 D NAME SBAILEY:spsAb WR$ SRICHA.RDS QG DATE 04/ ly /98 04/ G /98 04/9o /98 OFFICIAL RECORD COPY

• t>S 420 ye A UNITED STATES g ,j 2

NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20066-4001 o%..... / '

April 20, 1998 Mr. Oliver D. Kingsley, President l Nuclear Generation Group i Commonwealth Edison Company Executive Towers West til ]i 1400 Opus Place, Suite 500 Downers Grove,IL 60515

SUBJECT:

BRAIDWOOD, UNIT 2, REACTOR VESSEL INSPECTION SHELL VELD l lNDICATION EVALUATION

Dear Mr. Kingsley:

By letter dated October 15,1997, Commonwealth Edison Company (Comed) submitted. (or NRC review, its evaluation of a flaw in the nozzle shell to intermediate shell weld of the Braid'vood, Unit 2, reactor pressure vessel. Additional information was provided by letter dated November 25,1997. The flaw was found by ultrasonic testing (UT) conducted during the 7,ixth l refueling outage (A2R06) in fall 1997. The examination was performed to satisfy the requirements of the 10-year inservice inspection (ISI) in compliance with the 1983 edition of Section XI of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (Code). The submittal indicates that this flaw exceeds the allowable flaw size specified in IWB-3500 of Section XI of the ASME Code and requires flaw evaluation using IWB-3610 of the ASME Code.

The sta'f has completed its review and found the submittal acceptable. The staff concluded the reposted flaw is acceptable without repair for continued operation. The safety evaluation is enclosed.

Sincerely,

. 8A Stewart N. Baile , roject anager Project Directora -

Division of Reactor Projects - Ill/IV office of Nuclear Reactor Regulation l l

Docket No. STN 50-457

Enclosure:

As stated  ;

cc w/ encl: See next page i

O. Kingsley .

Braidwood Station .

Commonwealth Cdison Company Units 1 and 2 cc:

Michael Miller, Esquire Ms. Lorraine Creek Sidley and Austin RR 1, Box 182 One First National Plaza Manteno, Illinois 60950 Chicago, Illinois 60603 Mr. Ron Stephens Regional Administrator lilinois Emergency Services & Disaster Agency U.S. NRC, Region lli 110 E. Adams Street 801 Warrenville Road Springfield, Illinois 62706 Lisle, Illinois 60532-4351 Chairman Illinois Department of Nuclear Safety Will County Board of Supervisors Office of Nuclear Facility Safety Will County Board Courthouse I

1035 Outer Park Drive Joliet, Illinois 60434 Springfield, Illinois 62704 Attomey General Document Control Desk-Licensing 500 S. Second Street '

Commonwealth Edison Company Springfield, Illinois 62701 1400 Opus Place, Suite 400 Downers Grove, Illinois 60515 George L. Edgar Morgan, Lewis and Bochius Ms. C. Sue Hauser, Project Manager 1800 M Street, N.W.

Westinghouse Electric Corporation Washington, DC 20036 Energy Systems Business Unit Post Office Box 355 Commonwealth Edison Company Pittsburgh, Pennsylvania 15230 Braidwood Station Manager RR 1, Box 84 Joseph Gallo Braceville, Illinois 60407 Gallo & Ross 1250 Eye St., N.W., Suite 302 Commonwealth Edison Company Washin0 ton, DC 20005 Site Vice President - Braidwood RR 1, Box 84 Ms. Bridget Little Rorem Braceville,IL 60407 Appleseed Coordinator 117 N. Linden Street Mr. David Helwig Essex, Illinois 60935 Senior Vice President Commonwealth Edison Company Howard A. Leamer Executive Towers West 111 Environmental Law and Policy 1400 Opus Place, Suite 900 Center of the Midwest Downers Grove,IL 60515 203 N. LaSalle Street, Ste 1390 Chicago, Illinois 60601 Mr. Gene H. Stanley l PWR's Vice President i U.S. Nuclear Ngulatory Commission Commonwealth Edison Company l Braidwood ResMent inspectors Office Executive Towers West lli RR 1, Box 79 1400 Opus Place, Suite 900 i Braceville, Illinois 60407 Downers Grove, IL 60515 '

i

. \

l O. Kingsley Braidwood Station .

Commonwealth Edison Company Units 1 and 2 l

Commonwealth Edison Company Mr. Michael J. Wallace Reg. Assurance Supervisor- Braidwood Senior Vice President RR 1, Box 79 Commonwealth Edison Company Braceville, Illinois 60407 Executive Towers West til 1400 Opus Place, Suite 900 Mr. Steve Perry Downers Grove, IL 60515 i i BWR's Vice President Commonwealth Edison Company Executive Towers West til i 1400 Opus Place, Suite 900 Downers Grove,IL 60515

Mr. Dennis Farrar Regulatory Services Manager l Commonwealth Edison Company Executive Towers West lll 1400 Opus Place, Suite 500 ,

Downers Grove,IL 60515 i l

l Ms. Irene Johnson, Licensing Director i

Nuclear Regulatory Services Commonwealth Edison Company

, Executive Towers West 111 l 1400 Opus Place, Suite 500 l

Downers Grove,IL 60515 1

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