ML20217J766

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Refers to EPRI Rept TR-105747, BWR Vessel & Internals Project,Guidelines for Reinspection of BWR Core Shrouds (BWRVIP-07). Forwards Supplement to 970915 SE
ML20217J766
Person / Time
Issue date: 04/27/1998
From: Lainas G
NRC (Affiliation Not Assigned)
To: Terry C
NIAGARA MOHAWK POWER CORP.
Shared Package
ML20217J770 List:
References
TAC-M94959, NUDOCS 9804300311
Download: ML20217J766 (7)


Text

l . l Cirl Terry, BWRVIP Chiirmin Niagara Mohawk Power Company Post Office Box 63 Lycoming, NY 13093 V

l

SUBJECT:

SUPPLEMENT TO THE SAFETY EVALUATION OF THE BWR VESSEL AND INTERNALS PROJECT BWRVIP-07 REPORT (TAC NO. M94959)

Dear Mr. Terry:

By letter dated February 29,1996, as supplemented by letters dated July 17, May 21, and October 21,1996, and January 8,1997, you submitted the Electric Power Rasearch Institute (EPRI) Report TR-105747, "BWR Vessel and Intemals Project, Guidelines for Reinspection of

. ., BWR Core Shrouds (BWRVIP-07)," for NRC staff review and approval. The BWRVIP-07 report f

provides a uniform industry approach to reinspection of the BWR core shroud that would ensure that the structural and functional integrity would be maintained for either a repaired or unrepaired

. BWR core shroud.

On September 15,1997, the staff issued its safety evaluation (SE) of the BWRVIP-07 report. i The staff found the guidance generally acceptable but identified several open issues.

Representatives of the BWRVIP met with the NRC staff on November 5,1997, to discuss these issues and documented their proposed resolution in their submittal of November 26,1997. ' The staff has completed its review of this additional information and is issuing this supplement to its September 15,1997, SE to close the open issues.

The staff requests that the BWRVIP review the enclosed SE, and incorporate the staff's conclusions into a revised BWRVIP-07 report so that the resulting augmented inspections will l- assure an adequate level of quality and structural reliability. Please inform the staff within 90 i days of the date of this letter as to your proposed actions and schedule for such a revision. I please contact C. E. (Gene) Carpenter, Jr., of my staff at (301) 415-2169 if you have any further

~ questions regarding this subject. i l

Sincerely, j l

Gus C. Lainas, Acting Director

]

., Division of Engineering  !

OVVOO4 ' Office of Nuclear Reactor Regulation -

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Regions TECollins/KAKavanagh

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  • SEE PREVIOUS CONCH RENCE 3I i

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. Crri Terry, BWRVIP Ch!irmin Niagiro Mohlwk Power Comp:ny Post Office Box 63

! Lycoming, NY 13093

SUBJECT:

SUPPLEMENT TO THE SAFETY EVALUATION OF THE BWR VESSEL AND INTERNALS PROJECT BWRVIP-07 REPORT (TAC NO. M94959)

Dear Mr. Terry:

By letter dated February 29,1996, as supplemented by letters dated July 17, May 21, and October 21,1996, and January 8,1997., you submitted the Electric Power Research Institute (EPRI) Report TR-105747, "BWR Vessel and Internals Project, Guidelines for Reinspection of l BWR Core Shrouds (BWRVIP-07)," for NRC staff review and approval. The BWRVIP-07 report l provides a un; form industry approach to reinspection of the BWR core shroud that would ensure l that the structural and functional integrity would be maintained for either a repaired or unrepaired i BWR core shroud.

j On September 15,1997, the staff issued its safety evaluation (SE) of the BWRVIP-07 report.

The staff found the guidance generally acceptable but identified several open issues.

j Representatives of the BWRVIP met with the NRC staff on November 5,1997, to discuss these l issues and documented their proposed resolution in their submittal of November 26,1997. The

(

staff has completed its review of this additional information and is issuing this supplement to its September 15,1997, SE to close the open issues.

The staff requests that the BWRVIP review the enclosed SE, and incorporate the staff's conclusions into a revised BWRVIP-07 report so that the resulting augmented inspections will assure an adequate level of quality and structural reliability. Please inform the staff within 90 days of the date of this letter as to your proposed actions and schedule for such a revision.

l Please contact C. E. (Gene) Carpenter, Jr., of my staff at (301) 415-2169 if you have any further questions regarding this subject.

Sincerely, i

Gus C. Lainas, Acting Director Division of Engineering I Office of Nuclear Reactor Regulation j l

Enclosures:

As stated Distribution: SJCollins/FJMiraglia RPZimmerman

PUBLIC TTMartin GMHolahan/SFNewberry cc
See next page LCShao/MEMayfield ACRS l Regions TECollins/KAKavanagh l File Center EMCB R/F l l' DOCUMENT NAME: G:\BWRVIP\BV!R07.SER
  • SEE PREVIOUS CONCUIRRENCE l

! To receive a copy of this document, Indicate in the box: "E" = Copy w/ enclosure "N" = No copy EMCB:ME E EMCB:ME E EMCB: LPM E EMCB:SLS E

, MJBanica WHKoo* CECarpenter* RAHermann*

03/12/1998 / 03/12/1998 03/13/1998 03/13/1998 EMCB@C E EMCB:(A)BC E DE:(A)DD E DE:(A)D E KRWich EJSullivan JRStrosnider GClainas 03//h1998 03/ /1998 03/ /1998 03/ /1998 OFFICIAL RECORD COPY u

Ccri Tcrry, BWRVIP Chairman

. Niagtra Mohawk Power Company Post Office Box 63 Lycoming, NY 13093

SUBJECT:

SUPPLEMENT TO THE SAFETY EVALUATION OF THE BWR VESSEL AND i INTERNALS PROJECT BWRVIP-07 REPORT (TAC NO. M94959)

Dear Mr. Terry:

- By letter dated February 2,~ 1996, as supplemented by letters dated July 17, May 21, and October 21,1996, and January 8,1997, you submitted the Electric Power Research Institute

- (EPRI) Report TR-105747, "BWR Vessel and Intemals Project, Guidelines for Reinspection of BWR Core Shrouds (BWRVIP-07)," for NRC staff review and approval. The BWRVIP-07 report '

provides a uniform industry approach to reinspection of the BWR core shroud that would ensure that the structural and functional integrity would be maintained for either a repaired or unrepaired BWR core shroud.

On September 15,1997, the staff issued its safety evaluation (SE) of the BWRVIP-07 report.

The staff found the guidance generally acceptable but identified several open issues.

Representatives of the BWRVIP met with the NRC staff on November 5,1997, to discuss these issues and documented their proposed resolution in their submittal of November 26,1997. The staff has completed its review of this additional information and is issuing this supplement to its September 15,1997, SE to close the open issues.

The staff requests that the BWRVIP review the enclosed SE, and incorporate the staff's conclusions into a revised BWRVIP-07 report so that it is acceptable for implementation. Please l- inform the staff within 90 days of the date of this letter as to your proposed actions and schedule for such a revision.

(-

i i

Please contact C. E. (Gene) Carpenter, Jr., of my staff at (301) 415-2169 af you have any further questions regarding this subject.

l Sincerely,

! Gus C. Lainas, Acting Director Division of Engineering Office of Nuclear Reactor Regulation 1

(.

Enclosures:

As stated Distribution: SJColins/FJMiraglia RPZimmerman l PUBLIC TTMaitin GMHolahan/SFNewberry cc: See next page LCShao/MEMayfield ACRS Regions TECollins/KAKavanagh File Cent' EMCB R/F DOCUMENT NAME: G:\BWRVIP\BWR07.SER %F To receive a copy of this document, indicate in the x: *E" = Copy w/ enclosure "N' = No copy EMCB:ME E EMCB:ME E EMCB: LPM E EMCB:SLS E MJBanic thw WHKooU/C CECarpenter RAHermb 03/N1998 03/n/1998 03D1998 03g/1998 EMCB:SC E EMCB:(A)BC E DE:(A)DD E DE:(A)D E KRWichman oJ EJSullivan JRStrosnider GClainas 03/@fi998 [ ~03/ /1998 03/ /1998 03/ /1998 1

C. Terry Please contact C. E. (Gene) Carpenter, Jr., of my staff at (301) 415-2169 if you have any further questions regarding this subject.

Sincerely, Gus C. Lainas, Acting Director Division of Engineering Office of Nuclear Reactor Regulation

Enclosure:

As stated Distribution:

SJCollins/FJMiraglia RPZimmerman PUBLIC TTMartin GMHolahan/SFNewberry LCShao/MEMayfield ACRS Regions TECollins/KAKavanagh jFile;Centerf ~ [j EMCB R/F cc: See next page DOCUMENT NAME: G:\BWRVIP\BWR07.SER

  • SEE PREVIOUS CONCURRENCE To receive a copy of this document, indicate in the bor: "E" = Copy w/ enclosure "N" = No copy EMCB:ME E EMCB:ME E EMCB: LPM E EMC8:SLS E MJBanic* WHKoo* CECarpenter* RAHermann*

03/12/1998 03/12/1998 03/13/1998 03/13/1998 EMCB:SC E EMCB:(A)BC E DE:(A)DD E [(A)D E KRWichman* EJSullivan* JRStrosnider J dLainas 03/13/1998 03/27/1998 04/lb /1998 h !9 O4/ /1998 alppu OFFICIAL RECORD COPY W

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[p@ Uh\ UNITED STATES

g j. NUCLEAR REGULATORY COMMISSION l WASHINGTON, D.C. 30666 4 001 l- o%

o ,, g April 27, 1998 Carl Terry, BWRVIP Chairman Niagara Mohawk Power Company l l

Post Office Box 63 Lycoming, NY 13093

l

SUBJECT:

FINAL SUPPLEMENT TO THE SAFETY EVAll.IATION OF THE BWR VESSEL l j AND INTERNALS PROJECT BWRVIP-07 REPORT (TAC NO. M94959) l l

Dear Mr. Terry:

l By letter dated February 29,1996, as supplemented by letters dated July 17, May 21, and October 21,1996, and January 8,1997, you submitted the Electric Power Research Institute (EPRI) Report TR-105747, "BWR Vessel and Internals Project, Guidelines for Reinspection of i BWR Coro Shrouds (BWRVIP-07)," for NRC staff review and approval. The BWRVIP-07 report L

provides a uniform industry approach to reinspection of the BWR core shroud that would ensure  ;

that the structural and functional integrity would be maintained for either a repaired or unrepaired l BWR core shroud. I On September 15,1997, the staffissued its safety evaluation (SE) of the BWRVIP-07 report.

l_ The staff found the guidance to be generally acceptable but identified several open issues.

Representatives of the BWRVIP met with the NRC staff on November 5,1997, to discuss these issues and documented their proposed resolution in their submittal of November 26,1997. The staff has completed its review of this additionalinformation and is issuing this supplement to its

l. September 15,1997, SE to'close the open issues. The staff finds that the guidance of the J-BWRVIP-07 report is acceptable for inspection and assessment of the subject safety-related core shroud when the staff's conclusions are incorporated, as discussed in the enclosed SE.

The staff has also concluded that licensee implementation of the guidelines in BWRVIP-07, with j

modifications to address the staff's conclusions in the enclosed SE, will provide an acceptable 1 l level of quality for examination and assessment of the safety-related components addressed in the BWRVIP-07 document.

l

l. The staff requests that the BWRVIP review and resolve the issues raised in the enclosed SE, and incorporate the staff's conclusions into a revised BWRVIP-07 report so that the resulting augmented inspections will assure an adequate level of quality and structural reliability. Please
inform the staff within 90 days of the date of this letter as to your proposed actions and schedule

!- for such a revision.

1 l

l

]

f .

C. Terry l Please contact C. E. (Gene) Carpenter, Jr., of my staff at (301) 415-2169 if you have any further questions regarding this subject.

Sincerely, 9

. /Esf Gus C. Lainas, Acting Director Division of Engineering Office of Nuclear Reactor Regulation

Enclosure:

As stated cc: See next page l

l l

l l

p.

cc:

George Jones, Executive Chairman Dana Covill, Technical Chairman BWRVIP Assessment Task BWRVIP Assessment Task Pennsylvania Power & Light GPU Nuclear A6-1 1 Upper Pond Road Two North Ninth Street Parsippany, NJ 07054 Allentown, PA 18101 Joe Hagan, Executive Chairman Carl Larsen, Technical Chairman BWRVIP inspection Task BWRVIP inspection Task i Entergy .

Yankee Atomic )

P. O. Box 756 580 Main Street Waterloo Road Bolton, MA 01740 Port Gibson, MS 39150 Paul Bemis, Executive Chairman Vaughn Wagoner, Technical Chairman BWRVIP Integration Task BWRVIP Integration Task Washington Public Power Supply System Carolina Power & Light Company P. O. Box 968 One Wnnover Square 9C1 North Power Plant Loop P.O. Box 1551 Richland, WA 99352-0968 Raleigh, NC 27612 Lewis Sumner, Executive Chairman John Wilson, Technical Chairman BWRVIP Mitigation Task BWRVIP Mitigation Task Southern Nuclear Operating Co. Public Service Electric & Gas Co.

40 inverness Center Parkway N51 Birmingham, AL 35201 Post Office Box 236 Hancocks Bridge, NJ 08038 John Blomgren, Executive Chairman Bruce McLeod, Technical Chairman BWRVIP Repair Task BWRVIP Repair Task Commonwealth Edison Co. Southern Nuclear Operating Co. l 1400 Opus Place, Suite 600 Post Office Box 1295 Downers Grove, IL 60515 5701 40 inverness Center Parkway j Birmingham, AL 35201 l Bill Campbell, BWRVIP Vice Chairman Warren Bilanin, EPRI BWRVIP Carolina Power & Light Integration Manager P. O. Box 1551 Joe Gilman, EPRI BWRVIP Raleigh, NC 27612 Mitigation Manager Ken Wolfe, EPRI BWRVIP Robert Carter, EPRI BWRVIP Repair Manager -

Assessment Manager Electric Power Research Institute Greg Selby, EPRI BWRVIP P. O. Box 10412 Inspection Manager 3412 Hillview Ave.

EPRI NDE Center Palo Alto, CA 94303 P. O. Box 217097 1300 W. T. Harris Blvd.

Charlotte, NC 28221