ML20248L750
| ML20248L750 | |
| Person / Time | |
|---|---|
| Issue date: | 06/08/1998 |
| From: | Lainas G NRC (Affiliation Not Assigned) |
| To: | Terry C NIAGARA MOHAWK POWER CORP. |
| Shared Package | |
| ML20248L753 | List: |
| References | |
| IEB-80-13, TAC-M96219, NUDOCS 9806110338 | |
| Download: ML20248L750 (4) | |
Text
.
,p 3ree g I k UNITED STATES
- . g j NUCLEAR REGULATORY COMMISSION l
$ WASHINGTON, D.c. 30006 0001 I p%,*****/ !
l l June 8,1998 l CarlTerry, BWRVIP Chairman l Niagara Mohawk Power Company
- l. Post Office Box 63 Lycoming, NY 13093
SUBJECT:
SAFETY EVALUATION OF THE BWR VESSEL AND INTERNALS PROJECT BWRVIP-18 REPORT (TAC NO. M96219)
Dear Mr. Terry,
l By letter dated July 26,1996, as supplemented by letter dated October 8,1997, you submitted L
the Electric Power Research Institute (EPRI) Proprietary Report TR-106740, July 1996, "BWR Vessel and Intemals Project, BWR Core Spray Intemals inspection and Flaw Evaluation Guidelines (BWRVIP 18)," for NRC staff review and approval. The BWRVIP-18 report contains l generic guidelines for the inspection and reinspection of the core spray piping and spargers. it
- . describes piping and sparger locations, categories of plants for which inspection needs would l differ, and flaw (valuation procedures to determine allowable flaw sizes. The intent of the
! subject documere was, when approved by the NRC, to replace the guidance in IE Bulletin 80-13. I
- " Cracking in Core Spray Spargers," dated May 12,1980, which requested licensees to inspect l their core spray spargers, and the segment of piping between the inlet nozzle and the vessel i
shroud during each refueling outage and to provide reasonable assurance of the integrity of the safety-related core spray intemal components.
L The NRC staff has reviewed the BWRVIP-18 Jeport and finds, in the enclosed Safety Evaluation (SE), that the guidance of the BWRVIP-18 report is acceptable for inspection and assessment of the subject safety-related core spray intemal components except where the staff's conclusions differ from the BWRVIP's, as discussed in the enclosed SE. The staff further finds that the BWRVIP-18 report can be used to replace the guidance in IE Bulletin 80-13, when the staff's conclusions are incorporated. These findings are based on information submitted both originally and in response to the staff's request for additional information (RAI), dated January 22,1997, that clarified the guidance in BWRVIP-18. The staff has concluded that licensee implementation l of the guidelines in BWRVIP-18, with modifications to address the staff's conclusions in the l enclosed SE will provide an acceptable le' vel of quality for examination and assessment of the I safety-related components addressed in the BWRVIP-18 document.
The staff requests that the BWRVIP review and resolve the issues raised in the enclosed SE, l and incorporate the staff's conclusions into a revised BWRVIP-18 report.' Please inform the staff l within 90 days of the date of this letter as to your proposed actions and schedule for such a 3 revision. l
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1 Carl 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, Original signcd by Gus C. Lainas, Acting Director Division of Engineering Office of Nuclear Reactor Regulation
Enclosure:
As stated cc: See next page Distribution:
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Carl 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, M
Gus . Lainas, Acting Director Division of Engineering Office of Nuclear Reactor Regulation
Enclosure:
As stated cc: See next page i
4 L
cc:
George Jones, Executive Chairman Dana Covill, Technical Chairman i
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 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 Hannover 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. Clinton Power Station, M/C T-31C 40 inverness Center Parkway P.O. Box 678 Birmingham, AL 35201 Clinton, IL 61727 John Blomgren, Executive Chairman Bruce McLeod, Technical Chairman BWRVIP Repair Task BWRVIP Repair Task Commonwealth Edison Co. Southern Nuclear Operating Co.
1400 Opus Place, Suite 600 Post Office Box 1295 Downers Grove, IL 60515-5701 40 inverness Center Parkway Birmingham, AL 35201 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 i
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