ML20010F645
| ML20010F645 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 08/19/1981 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Crouse R TOLEDO EDISON CO. |
| References | |
| TAC-42050, NUDOCS 8109110067 | |
| Download: ML20010F645 (2) | |
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AUGUST 19 NI DISTRIjilll(LN Qocket File)
JStolz mu, m DGarner Docket f o. 50-346 L PDR RIngram TERA Gray File NSIC EBlackwood ORB #4 Rdg H0rnstein Mr. Richard P. Crouse DEisenb"
Vice President. Nuclear OELD Toledo Edison Comany IE-3 Edison Plaza - Stop 712 ACRS-10 300 Itadisc9 Avenue Toledo, Ohio 43652
Dear Mr. Crouse:
In our letter of May 1980 we recomended that you initiate a progran to inspect the keyway and bore areas of your low pressure discs for stress g
corrosion cracking. This action was prompted by the discovery of such cracks in Westinghouse turbines.
So fir, the inspection program has covered one or more low pressure rotors at 15 nuclear plants using GE turbines. fio clear indication of stress corrosion cracking hes been discovered, although indications of water cutting and/or arosion have been observed in several turbines.
In view of these findings, we have decided to discontir.us the 11RR staff mor.itoring of these inspections. Hornal activities of the Office of Inspection and Enforcenent will continue of course.
We recorrend that you continue to perform disc inspections, as appropriate, and continue to work with General Electric Company to establirh safe inspection schedules. Should you find any significant degradation, such as stress corrosion cracking, we wouM expect you to prorytly report it in the narmal runner.
Sincerely,
'ORIGIWLL SIG2D BI J012 F. SWW John F. Stolz, Chief
[' \\ NLl ' T 'b, Operating Reactors Branch #4 Division of Licensing q
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h9C FORM 318 (1M) NRCM 024o OFFICIAL RE' CORD COPY usopo:isc-.m ees
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-Q Toledo Edison Company cc w/ enclosure (s):
Mr. Donald H. Hauser, Esq.
U.S. Nuclear Regulatory Commission The Cleveland Electric Resident Inspector's Office Illuminating Ccmpany 5503 N. State Route 2 P. O. Box 5000 Oak Harbor, Ohio 43449 Cleveland, Ohio 44101 Mrs. Julia Baldwin, Librarian Gerald Charnoff, Esq.
Government Documents Collection Shaw, Pittman, Potts William Carlson Library and Trowbridge University of Toledo 1300 M Street, N.W.
2201 W. Bancroft Avenue Washington, D. C.
20036 Toledo, Ohio 43606 Leslie Henry, Esq.
Fuller, Seney, Henry and Hodge 300 Madison Avenue Toledo, Ohio 43604 Regional Radiation Representative EPA Reaion V Mr. Robert B. Borsum 230 South Dearborn Street Sabcock & Wilcox Chicago, Illinois 60604 "uclear Power Generation Division Suite 420, 7735 Old Georgetown Road Bethesda, Maryland 20014 Chio Derartmerit of Health ATTM:
Radiological Health Program Director P. 0. Box 118
- resident, Soard of County Col ur.; bus, Ohi o 43216 Ccmmissioners of Ottawa County F:r: Clinton, Ohio 43452 Attorney General De:artment of Attorney Ge.1eral 30 East Broad Street Columbus, Ohio 43215 Harold Kahn, Staff Scientist Power Siting Ccmmission 361 East Broad Street Columous, Ohio 43216 Mr. Rick Jagger Industrial Ccmmission State of Ohio 2323.-lest 5th Avenue Columbus, Ohio 43216 "r.
Ted Myers
.:anager, Nuclear Licensing Toledo Edison Ccmpany Edison Plaza 300 :'adison Avenue Toledo, Ohio 43652
.