L-76-223, Proposed Amendment to License No. DPR-067. Proposed Change Concerns Revision to Surveillance Requirement 4.2.1.4.b.7

Proposed Amendment to License No. DPR-067. Proposed Change Concerns Revision to Surveillance Requirement 4.2.1.4.b.7

ML18096B514
Person / Time
Site:	Saint Lucie
Issue date:	06/15/1976
From:	Robert E. Uhrig Florida Power & Light Co
To:	Stello V Office of Nuclear Reactor Regulation
References
L-76-223
Download: ML18096B514 (6)

Text

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• 4 Director of Nuclea Reactor Regulation Attention: Hx. Uictox Stello, Di ectox Division of'pera irg Reactors U. S. Nuclear Regulatory Commission Nashington, D- C. 20555 Deax~Hx. Stello:

St. Lucie Uni,t' Docket 8o. 50-335 Proposed Amendment to Pacilit Operating License DPR-67 On April 27, 1976, Florida Power and Light Company submitted ,

a proposed interim Tec+mical Specification amend",.sent based on a reduced reactor coolant floe rate of 354,000 gpss.~ The proposed change was intended to -erzait continuation,'f the St. Lucie Unit l power ascension pxogram.

As described in our letter L-76-23.8 of June 14, 3.976, Combustion =nginee ing {C-Z) has found oding erxoxs in their STRXHXh iX (ZCCS) Code. As a result, C-E has perforned a preliminary calculation usinq a corrected version of the STBXKXN XX Code to establish a conservative estimate of the.

maximum alloMahle linear heat generation rate (LHGR). Tne calculation incorporated all low floe paxaneters and esulted in a t,",azimuth allowable LHGB of 13.7 km/ft at 100%, rated power.

A penalty'f l k~v/ft was subsequently assumed which reduces this 3irait to l2.7 ':w/ft. Because this calculation incorporated all the lo',v rior p ra...e ers, thxee of the interim Technical Specifications proposed in our April 27 latter are no longer necessary and are hereby vitMrawn. The pages listed below should remain the swee as those in our current Technical, Specifications.

Pa e 3 4 2-2 h

Proposed'interim specification 4.2.1.4.b.7, which added a flow adj ustment factor to the calculation of LHGR, is na longer necessary. The affects of lo~ flov, are now included in the preliminarv LHGR licit.

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Director of Nuclear Reactor Regulation Attention: bir. Victor Ste13.o, Director Page Tvo June 3.5. 1976 The revision.to Figure 3.2-2 to accormodate reduced f3.ov is no lo3:ger realized because the entire curve is reduced by Technical Specification 4.2.1.3.c. The above mentioned XZiGR of 12.7 ka/Ct.

is administratively imposed. on Piguxe 3.2'1.

Pa e83 4 2-l The affects of reduced floe are nor included in the preliminary XHQR 3.imit, therefore, it is no longer necessary to include a di.scus".ion of an interim $ 3,o'c factor in the Bases.

Yours very trad.y, Robert E. Uhrig.&

Vice President REQ/KS/chic co." Hr. Norman c. Moseley

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Coumz OF Dms 3 Huckiburg, being Xi,rst dul.y suborn, deposes and says:

That he is an Executive Vice president of Florida Power 6 Light Company, the Licensee herein; That he has executed the oregoing docurmntT tnat the statements made ia, this said locum nt are true and correct to the best of his knur"ledge, information and belief, and that he is authorized to execute the document on behal of said Licensee.

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J. J. Hu i urg Subscribed. and sworn 4o befor e

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