ML20135A331

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Application for Amend to License R-28,changing Tech Spec Section 3.1 Re Subcriticality of Reactor During Fuel Load Changes.Revised Tech Spec Page 9,superseding 841130 Submittal,Encl
ML20135A331
Person / Time
Site: University of Michigan
Issue date: 09/04/1985
From: Kerr W
MICHIGAN, UNIV. OF, ANN ARBOR, MI
To: Harold Denton
Office of Nuclear Reactor Regulation
Shared Package
ML20135A333 List:
References
NUDOCS 8509100105
Download: ML20135A331 (1)


Text

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THE UNIVERSITY OF MICHIGAN MICHIG AN MEMORIAL-PHOENIX PROJECT oFFISS OF TMs Denactom PMosMau MEMonsAL LAsenAfony PMO983 (Sla) 764 4213 NORTM CAMPUS AMN AASoA. MICHIGAM ASIOS September 4, 1985 Docket 50-2 License R-28 United States Nuclear Regulatory Commission Harold Denton, Director Division of Reactor Licensing

, Washington, D.C. 20SSS i

, Gentlemen r The University of Michigan requests that Ford Nuclear Reactor Technical i

Specifications, page 9, section 3.1, specification (S) be changed as follows (S) The reactor shall be subcritical by at least 0.025 ,

delta K/K during fuel loading changes.

A revised page 9 is enclosed for incorporation in our Technical Specifications, In our license renewal request, originated on November 30, 1984, the shutdown .

margin relative to the cold, xenon free critical condition with all three shim safety rods inserted was changed from 0.03 delta K/K to 0.025 delta K/K (page 9, section 3.1, specification (1)) . The minimum subcritical reactivity

for fuel movement is the minimum shutdown margin with all rods inserted. It was an oversight on our part that we did not request a concurrent change in

. specification (S) reactivity to 0.025 delta K/K.

Sincerely, I

william Kerr, Director

- Michigan Memorial-Phoenix Pro)ect Enclosure i

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