ML19326A131
| ML19326A131 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 03/03/1978 |
| From: | Vassallo D Office of Nuclear Reactor Regulation |
| To: | Roe L TOLEDO EDISON CO. |
| References | |
| NUDOCS 8002030011 | |
| Download: ML19326A131 (3) | |
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. P. Gammill NRC PDR ELD MAR 3197S_ocal PDR IE (3)
LWR 1 File' W. Haass R. S. Boyd R. C. DeYoung D. B. Vassallo Docket No. 50-346 F. J. Williams J. Stolz L. Engle Toledo Edison Company E. Hylton ATTN: Mr. Lowell E. Roe R. J. Mattson Vice President, Facilities D. Ross bcc: J. R. Buchanan, NSIC Development J. P. Knight T. B. Abernathy, TIC Edison Plaza R. Tedesco ACRS (16) 300 Madison Avenue H. Denton Toledo, Ohio 43652
- y. A. Moore R. H. Vollmer Gentlemen:
M. L. Ernst
SUBJECT:
RELIABILITY DF STANDBY DIESEL GENERATOR UNITS IN OPERATING NUCLEARPOWERPLANTS(DAVISBESSE1)
The demonstrated reif ability of standby diesel generator (DG) units in operating nuclear power plants has been less than anticipated. The NRC has concluded that a systematic review and analysis of operating problems associated with diesel generator units is nccassary to establish what practical neasures may be taken to enhance the reliability of these units. The NRC, with the assistance of the L'niversity of Dayton, has initiated such a study.
It is our intent that this study will provide practical results that will prove useful to each nuclear utility; there-fore, each operating reactor licensee is requested to respend to the enclosed questionnaire.
l An analysis will be performed on the information received and the results of this analysis, along with recomendations that may lead to improved reliability, will be transmitted to licensees and applicants for their use. We believe that this information will assist in identifying as well as avoiding or minimizing operating experiences encountered by others. We view this effort as one of mutual interest.
We request that a single completed copy of the enclosed questionnaire be returned to the Director of Nuclear Reactor Regulation, U. S. Nuclear Regulatory Commission, Washington, D. C. :20555, within two weeks after receipt of this letter. Please: include on a separate sheet the name, address and phone'aumber of the person (s) at the reactor site responsible for completing the questionnaire and responsible for responding to.any follow-up communications concerning the~ questionnaire o'r for arranging.
a reactor site visit.
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- The responses to the majority of the questions can be answered with just a few words or by checking the appropriate space.
In responding to those questions which do not apply to a particular installation and/or situation, please indicate 'T/Ffor "not applicable." If the question does apply to a particular installation or situation but the answer is not known, please indicate "UN" for " unknown." For those entries on the questionnaire where the requested information is not known by our request date as stated above, please provide it in follow-up correspondence when it becomes available.
Further, the detailed information obtained in this study will be subject to disclosure pursuant to the Freedon of Information Act Regulations as implemented by 10 CFR part 9 - Public Records.
In the event that any infomation requested as a part of this study, is considered by you (or your contractor) to be proprietary, it is necessary that you make a written application to withhold such infomation from public disclosure. Any such application must be accompanied by an affidavit executed by the owner of the information, which identifies the docurent or part sought to be withheld, and which contains a statement of reasons which address with specificity the items which will be considered by the Commission as listed in subparagraph (b)(4) of Section 2.790 of NRC's
" Rules and Practice," Part 2 Title 10, Code of Federal Regulations.
The information sought to be withheld shall be incorporated as far as possible into a separate part of the affidavit.
In the event any portion of the questiannaire needs clarification, please contact F. Clemenson at (301) 492-8077.
This request for generic infomation was approved by GA0 under a blanket clearance number 3-130225 (R0072); this clearance expires July 31, 1980.
Sincerely, orignal S4d W D. B. Vassallo, Assistant Director for Light Water Reactors Division of Project Management
Enclosure:
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-3, MAR 3 9979 cc: Donald H. Hauser, Esq.
The Cleveland Electric Illuminating Company P. O. Box 5000 Cleveland. Ohio 44101 Gerald Charnoff. Esq.
Shaw, Pittman. Potts and Trowbridge 1800 M Street..N. W.
Washington.'O. C.
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. Leslie Henry. Esq.
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