ML19273B698

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Confirms Plan to Discuss & Resolve Matters Re Fuel Rod Bowing Effects in Snupps FSAR
ML19273B698
Person / Time
Site: Callaway, Sterling, 05000484  Ameren icon.png
Issue date: 05/30/1979
From: Petrick N
STANDARDIZED NUCLEAR UNIT POWER PLANT SYSTEM
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
0419.10.2, 419.10.2, NUDOCS 7906120146
Download: ML19273B698 (1)


Text

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SN'JPPS Stardardized Nucioer Unit Pow or Plant System F Choke Cherry Road Nicholas A. Petrick Rockville, Maryland 20850 Executive Director (301)869 4010 May 30,1979 SLNRC 79-8 FILE: 0491.10.2 SUBJ: Effects of Fuel Rod Bowino Mr. Boyce Grier Director, Region I Office of Inspection and Enforcement US Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Docket No's:

STN 50-482, STN 50-483, STN 50-484, STN 50-485, and STN 50-486.

Ref: SLNRC 6-6 dated September 3,1976, Reportable Occurrence -

Revised Accident Analyses.

Dear Mr. Grier:

The referenced letter reported that certain aspects of the accident analyses for the SNUPPS plants were possibly non-conservative. One of these aspects was the effect on calculated DNB ratios of fuel rod bowing. The reference stated that, at worst, slightly more restrictive limits on allowable power distribution may have to be imposed at the operating license stage of review because of rod bowing effects.

Pursuant to discussions with Mc. J. Mattia of your office on April 30, 1979, this letter confirms our plan to discuss and resolve matters associated with fuel rod bowing effects in the SNUPPS Final Safety Analysis Report.

Very truly yours, fVic Nicholas A. Petrick RLS:heg 2350 288 cc; Mr. James G. Keppler, Director, Region III, USNRC.

r. Karl V. Seyfrit, Director, Region IV, USNRC.

fMr. John G. Davis, Acting Director, Office of Inspection

& Enforcement. Washington D.C. q

') D 7906120144, \