ML20098A556

Responds to Request for Interim Assessment of Design of Plant Core Spray Sys Based on Idvp Work Performed to Date. Concerns Identified Do Not Warrant Delay of Loading Fuel & Proceeding to 5% Power

ML20098A556
Person / Time
Site:	Limerick
Issue date:	09/21/1984
From:	Wessman G TORREY PINES TECHNOLOGY
To:	Schwencer A Office of Nuclear Reactor Regulation
References
TPT:056:GLW:84, TPT:56:GLW:84, NUDOCS 8409250105
Download: ML20098A556 (2)

Text

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TORREY MNES TECHNOLOGY Ro. Box 85608 San Diego, Califomia 92138 Telephone: (619) 455-2654 A Drvision of GA Technologies Inc.

TPI:056:GLW:84 Sept a ber 21, 1984 Mr. A. Schwencer.

Olief, Licensing Branch #2 Division of Licensing U. S. Nuclear Regulatory Commission Washington, DC 20555

Dear Mr. Schwencer:

Torrey Pines Technology was requested to subnit an interim assesment of the design of the Core Spray Systs at Limerick Unit I based on the Independent Design Verification Progra work performed to date. This assesment was requested to establish tbst there is no known basis for any safety concern that could potentially delay the start-up progrm.

TPr's IDVP efforts have concentrated _ on the safety-related Core Spray System. Results to date have developed the positive impression that an effective design process was established and was effectively impleented. TPT has identified some questions which are identified as potential findings (PF) that must be thoroughly reviewed and classified as Invalid, an Observation with no safety impact, or a Finding with a potential safety impact. Eis process is not complete as of thic date.

TPI's project management. and task leaders have deviated frm the normal carefully substantiated, objective, docmented approach to conduct this interim assesment based on subjective judgnent made on individual unresolved potential findings and the aggregate potential findings, both classified and in-process (unresolved). Of the thirty-six potential findings, 17 have been classified and 19 are in process. Of those classified, 6 are Invalid, 9 are Observations, ~

and 2 are Findings.

he reaining 19 have been reviewed by the project manager and the cognizant task leaders. An assesment was made as to their impact on safety relative to granting the low power license to permit fuel'1cading and rise to 5% power. While the assesment must be considered subjective, it indicates that no substantial safety hazard would be created by the activities typically associated with startup to the 55 power level.

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.g In stannary, while TFT has identified some concerns, - these concerns would not warrant delay of Limerick Unit I loading fuel and proceeding to 5% power.

1herefore, TFT sees no basis for withholding a license to load fuel and test up to 5% power.-

S erely, G. L. We snan Director Torrey Pines Technology cc: J. Milhoan, USNRC V. S. . Boyer, ECo R. A. Mulford, ECo George Beck, ECo