ML20148H172

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Confirms 741203 Telcon Re 740731 Submittal of ECCS Analysis for Facility.Licensee Assumption of Worst Single Failure Involving Failure of Diesel Generator to Start Following LOCA Discussed.Requests Addl Info
ML20148H172
Person / Time
Site: Yankee Rowe
Issue date: 12/05/1974
From: Purple R
US ATOMIC ENERGY COMMISSION (AEC)
To: Andognini G
YANKEE ATOMIC ELECTRIC CO.
References
NUDOCS 8011170367
Download: ML20148H172 (1)


Text

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a

- December 5, 1974 -

b Docket No. 53-29 Yankcc Atomic Electric Company _

ATTH: Mr. G. Carl Andognini, Assistant to the Vice President I

20 Turnpike Road Westboro, Hassachusetts 01581 ,

Centlemen:

This will confirm a discussion on the telephone on December 3, 1974, with ucebers of your staff concerning your July 31, 1974 submittal of the .

ECCS analysic for Yankee-Rowe, to demonstrate compliance with 10 CFR Part 50, Appendix K. Specifically, we discussed Yankee's assumption of the worst e single failure involving the failure of a diesel generator to start I following a loss of coolant accident coincident with the loss of offsite

. power. Since this assue:ption is different: from the worst single failure determined by Westinghouse in a sensitivity ctudy, reported in Westinghouse Ecport WCAP-8340, we requested that Yankee provide additional information to justify this exception. Your staff advised us that Yankee will submit the requested information by December 6, 1974.

Sincerely, Original signed by.:

Robert A, Purple nebert A. Purplc, Chief ,

Operating Reactors 11 ranch i"1 <

Directorate of Licensing ,

cc: Mr. Donald G. Allen, President ,

Yankee Atomic Elcetric Co=pany 20 Turnpike Road Westboro, Massachusetts 01531 bec: C. Burlinger -l DISTRUBITION j AEC PDR Docket File SMSheppard OR-1 Reading RAPurple THIS DOCUMENT CONTAiNS , j nRoolier OcC POOR QUAUTY PAGES ,

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