ML17195A597
| ML17195A597 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, 05000000 |
| Issue date: | 08/22/1984 |
| From: | Vassallo D Office of Nuclear Reactor Regulation |
| To: | Farrar D COMMONWEALTH EDISON CO. |
| References | |
| NUDOCS 8409040398 | |
| Download: ML17195A597 (4) | |
Text
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. AUG 22 1984
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Docket.Nos. 50-237/249/254/265.
DISTRIBUTION 1Docket-Fi 1e*
1 Mr. Dennis L Farrar Director of Nuclear Licensing Commonwea 1th *Edi son Company*.
Post Office Box 767 *. *
- Chicago, Illinois 60690
Dear Mr. Farrar:
NRC-PDR
- Local* PDR ORB#2 Rdg DEisenhut ELD EJordan JNGrace RBevan RGilbert (ORB#5)
SNorris ACRS ( 10)
SUBJECT:
RECIRCULATION INLET NOZZEL SAFE ENDS Gray File Re:
.Dresden Units 2 and 3 and Quad Cities Units 1 and 2 Philadelphia Electric Company.(PECo) has reported-that cracks have been detected in the recirculation system inlet nozzle safe-ends on Peach Bottom Unit 2.. The cracks are located in the zone.near the weld attaching the thermal sleeve to the inside of the safe end.
At the request of NRC, PECo is presenting the ~esults of the inspections to th~ NRC staff in a ~eeting to be held in room P-118 of the Phillips Building in Bethesda, MD on August 30, 1984, starting at 1:00 pm. *
- Based on discussions wi~h your staff, you are requested to have -
representatives present at the meeting on August 30, 1984 prepared to discuss: 1) the design of the recirculation inlet nozzle safe ends in the Browns Ferry Units :(including material composition, fabrication, etc.), 2) the results of any previous inspections of these safe ends (including inspection procedures) and 3) your plans for* future inspection of the recirculation inlet nozzle safe ends in Browns Ferry Units 1, 2, and 3.
An agenda for the meeting is enclosed.
For additional information, contact the NRC Browns Ferry project manager.
Enclosure:
As stated cc:
See next page DL:ORB#2
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Sincer,ely,
- Origirnal SigD1ed by
Domenic B. Vassallo, Chief Operating Reactors Branch #2
~ivision of licensing l
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Mr. Dennis L. Farrar Commonwealth Edison Company e
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Qu~d Citie~ Nuclear Power Station, Units 1 and 2 cc:
\\Mr. D. R. Stichnoth President Iowa-Illinois Gas and Electric Company 206 East Second Avenue Davenport, Iowa 52801
~Robert G. Fitzgibbons, Jr.
Isham, Lincoln & Beale Three First National Plaza Suite 5200 Chicago, Illinois 60602 fMr. Nick Kalivianakas Plant Superintendent Quad Cities Nuclear Power Station 22710 - 206th Avenue - North Cordova, Illinois 61242 iResident Inspector U. S. Nuclear Regulatory Commission 22712 206th Avenue North Cordova, Illinois 61242 Chairman Rock Island County Board of Supervisors Rock Island County Court House Rock Island, Illinois 61201 1James G. Keppler Regional Administrator Region III Office U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137
~U. S. Environmental Protection Agency Reg.ion V Office Regional Radiation 230 South Dearborn Chicago, Illinois rSusan N. Sekuler Representative Street 60601 Assistant Attorney General Environmental Control Division 188 W. Randolph Street Suite 2315 Chicago, Illinois 60601
~The Honorable Tom Corcoran United States House of Representatives Washington, D. C.
20515
~Mr. Gary N. Wright Nuclear Facility Safety Illinois Department of Nuclear Safety 1035 Outer Park Drive, 5th Floor Springfield, Illinois 62704
Mr. Dennis L. Farrar cc.
Isham, Lincoln & Beale Counselors at Law Three First National Plaza,*
Suite 5200 Chicago, Illinois 60602 Mr. Doug Scott Plant Superintendent Dresden Nuclear Power Station Rural. Route #1 Morris, Illinois 60450 U. S. Nuclear Regulatory Commission Resident Inspectors Office Dresden Station Rural Route #1 Morris, Illinois 60450 Chairman Board of Supervisors of Grundy County Grundy County Courthouse Morris, Illinois 60450 U. S. Environmental Protection Agency Federal Activities Branch Region V Office ATTN:
Regional Radiation Representative 230 South Dearborn Street Chicago, Illinois 60604 James G. Keppler, Regional Administrator Nuclear Regulatory Commission, Region III
- 799 Roosevelt Street Glen Ellyn, Illinois 60137
- Mr. Gary N. Wright, Manager Nuclear Facility Safety Illinois Department of Nuclear Safety 1035 Outer Park Drive~ 5th Floor Springfield, Illinois 62704
- I Meeting With Philadelphia Electric Company And Other Interested Utilities
SUBJECT:
REVIEW OF RECENTLY REPORTED CRACKING AT THE SAFE END TO THERMAL SLEEVE ATTACHMENT ~JELD RECIRCULATION INLET NOZZLES AT PEACH BOTTOM 2, AND POTENTIAL GENERIC IMPLICATIONS AGENDA I.
Presentation by Philadelphia Electric Company A.
Introduction
- a.
Overview of results of recent inspections B.
Technical Discussions
- 1)
Description of the safe end, thermal sleeve, and attachment weld configuration, materials and installation procedures
- 2)
Details of recent and past examination methods and results on Peach Bottom Units 2 and 3.
- 3)
Postulated reasons for, and mechanism of cracking.
- 4)
Safety Implications
- 5)
Proposed repair method
- 6)
Perceived Generic implications II. Presentations by other Utilities, (TVA and Commonwealth Edison)
- A.
Design & material configurations/comparisons B.
Past inspection methods, results, and present and future plans.