ML19317F729

Forwards Asymmetric LOCA Loads Evaluation Program. Phase 1 Results Only Encl.Schedules & Implementation Plans for Phases 2 & 3 to Be Submitted in Advance of Execution

ML19317F729
Person / Time
Site:	Davis Besse
Issue date:	05/05/1978
From:	Roe L TOLEDO EDISON CO.
To:	Stello V Office of Nuclear Reactor Regulation
Shared Package
ML19317F730	List: ML19317F729 ML19317F735
References
NUDOCS 8001230618
Download: ML19317F729 (2)

Text

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REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

DISTRIBUTION FOR INCOMING MATERIAL 50-346 REC: STELLO V ORG. ROE L E DOCDATE: 05/05/79 NRC TOLEDO EDISON DATE RCVD: 05/09/78 DOCTYPE: LETTER NOTARIZED: NO COPIES RECEIVED

SUBJECT:

LTR 1 ENCL 1 RESPONSE TO NRC REQUEST FOR DETAILED SCHEDULE FOR EVALUATION OF ASYMMETRIC LOCA LOADS CN UNIT 1. FORWAFDING REPT ENTITLED: " TOLEDO EDISION CO ASYMMETRIC LOCA LOADS EVALUATION FROGRAM FOR DAVIS-EESSE NUC FWR STATION NO.

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FLANT NAME: DAVIS BESSE - UNIT 1 REVIEWER INITIAL: XJM DISTRIBUTOR INITIAL: W

• • +************** DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS ******************

NOTES:

1. SEND ALL AMENDMENTS TO J. ROE PSAR/FSAR AMDTS AND RELATED CORESPCNDENCE (DISTRIBUTION CODE BOO 1)

FOR ACTION: ASST DIR VASC- ' %*LTR ONLY BR CHIEF STOLZ**LTR ONLY pe" REP. mv A NCL LIC ASST HYLTON**LTR ONLY INTERNAL: Q EG FILEf*W/EF NRC PDR**W/ ENCL 1 a r**W/2 ENCL OELD**LTR ONLY P. COLLINS **W/ ENCL HOUSTON **W/ ENCL HELTEMES*+W/ ENCL CASE **LTR ONLY MIPC**LTR ONLY KNIGHT **LTR ONLY DOSNAK**W/ ENCL SIHWEIL**W/ ENC:

PAULICKI**W/2 ENCL ROSS**LTR ONLY NOVAK**W/ ENCL ROSZTOCZY**W/ ENCL CHECK **W/ ENCL TEDESCO**LTR ONLY BENAROYA**W/ ENCL LAINAS**W/ ENCL IPPOLITO**W/ ENCL F. ROSA **W/ ENCL GAMMILL**W/4 ENCL VOLLMER**LTR ONLY EUNCH**W/ ENCL J. COLLINS **W/ ENCL KREGER**W/ ENCL KIRKWOOD**W/ ENCL EXTERNAL: LPDR'S PT. CLINTON, OH**W/ ENCL ,

TIC **W/ ENCL NSIC**W/ ENCL ACRS CAT B**W/16 ENCL DISTRIEUTION: LTR 56 ENCL 46 CONTROL NER: 75129CrTJ5 j SIZE: 1P+6P /"

oo********************************* THE END **************************** ****+

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TOLEDO

%ms EDISON Docket No. 50-346 LOWELL E. ROE v, we.,4.at Facshties Degetopment (4191 259-5242 Serial No. 434

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May 5, 1978

.i Director of Nuclear Reactor Regulation -

'Q Attention: Mr. Victor Stello, Director T, _

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Division of Operating Reactors -

United States Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Stello:

In response to your request to provide you with a detailed schedule for our avaluation of asymmetric LOCA loads on Davis-Besse Nuclear Power St.ati(1 Unit No. 1, we have attached a report entitled " Toledo Edison Company Asymmetric LOCA Loads Evaluations Program for Davis-Besse Nuclear Power Station Unit No. 1". The schedule presented is consistent with your intentions to resolve this issue within approximately two years.

As can be determined from the report, we plan to evaluate the asymmetric loads issue in three distinct phases with the execution of Phases II and III being dependent on the results of Phase I. Only the details of the Phase I evaluation have been included in the attached report. Should we find it necessary to proceed to Phases II and III, we will transmit de-tailed schedules and implementation plans to you in advance of executing these phases.

Please note that we hope to utilize results of a similar analysis on our Davis-Besse 2 and 3 Units if possible and where permissible plan to take advantage of any generic B&W analyses. When doing so, we will provide justification for the approach taken.

Yours very truly, Enclosure s

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THE TCLEDO ECISCN COMPANY EDISCN PLAZA 300 MADISON AVENUE TOLEDO. CHIO 43652