ML20065B686

Informs That Scheduled 830301 Submittal of Proposed ECCS Calculations Using NUREG-0630 Cladding Models Will Be Delayed Until 830408.Delay Due to Anticipated Late Receipt of Analysis from Sponsoring Utils

ML20065B686
Person / Time
Site:	Davis Besse
Issue date:	02/17/1983
From:	Crouse R TOLEDO EDISON CO.
To:	Stolz J Office of Nuclear Reactor Regulation
References
912, NUDOCS 8302230290
Download: ML20065B686 (1)

Text

TOLEDO

%ms EDISON Docket No. 50-346 N$cm Nuclear License No. NPF-3 Serial No. 912 February 17, 1983 Director of Nuclear Reactor Regulation Attention: Mr. John F. Stolz Operating Reactor Branch No. 4 Division of Operating Reactors United States Nuclear Regulatory Connaission Washington, D.C. 20555

Dear Mr. Stolz:

In our letter dated August 13, 1982 (Serial No. 847) Toledo Edison provided our plan to submit supplemental ECCS calculations using the cladding models of NUREG-0630 by March 1, 1983. As part of a group of utilities sponsoring the analysis, we find the results will not be provided to us as expected to meet the March 1, 1983 submittal date.

Therefore, for the Davis-Besse Nuclear Power Station Unit No. I we plan to submit the proposed calculations by April 8, 1983.

As discussed previously, the implementation schedule for permanent modifications to the ECCS evaluation models will be provided at a later date.

Very truly yours,

%T C.~~ 0 RPC:LDY:lah cc: DB-1 NRC Resident Inspector O

THE TOLEDO EDISON COMPANY EDISON PLAZA 300 MADISON AVENUE TOLEDO, OHIO 43652 8302230290 830217 PDR ADOCK 05000346 P PDR