ML19309H095

Forwards Proposed Tech Spec Changes to Reactivity Control Sys for Shutdown Margin During Mode 5 Operation.Changes Increase Margin & Assure Consistency W/Assumptions in Safety Analysis.Class III Fee Encl

ML19309H095
Person / Time
Site:	Arkansas Nuclear
Issue date:	04/30/1980
From:	Cavanaugh W ARKANSAS POWER & LIGHT CO.
To:	Reid R Office of Nuclear Reactor Regulation
Shared Package
ML19309H096	List: ML19309H095 ML19309H098
References
NUDOCS 8005080366
Download: ML19309H095 (3)

Text

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8005080 %

ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 UTTLE ROCK. ARKANSAS 72203 (501) 371-4422 April 30, 1980 WILLIAM CAVANAUGH 111 Vice Presdent Generation & Consuucton 2-040-10 Director of Huclear Reactor Regulation ATTN: Mr. R. W. Reid, Chief Operating Reactors Branch #4 U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Subject:

Arkansas Nuclear One - Unit 2 Docket No. 50-368 License No. NPF-6 Proposed Technical Specifications Change - Shutdown Margin During Mode 5 Operation (File: 2-1511.2)

Gentlemen:

This letter proposes a change. to the Arkansas Nuclear One - Unit 2 (ANO-2.)

Technical Specifications. We wish to change sections 3.1.1.2, 3.1.2.2, 3.1. 2. 4, 3.1. 2. 6, 3.1. 2.8, 4.1.1. 2, 3/4.1.1 and 3/ 4.1. 2. This change is requested for the reasons discussed below^.

' Arkansas Power and Light Company was informed by letter from Combustion Engineering that the safety analysis for a boron dilution accident in

. Mode 5 assumes an initial shutdown margin of 2% LK/K while the Technical Specifications require only 1% IK/K shutdown margin in Mode 5. This proposed Technical Specification change increases the required Mode 5 shutdown margin to _>__ 2% 6K/K and thus assures consistency with the as-sumptions in the safety analysis.

As stated in our letter of April 1,1980 from Mr. D. C. Trimble to Mr. K. V. Seyfrit, a review of the plant operating history has con-firmed that actual shutdown margins have always exceeded the 2% A K/K as assumed in the FSAR.

The revised pages of the ANO-2 Technical Specification are included with vertical lines denoting changed items. The revised pages are listed below.

MEMBER MIDDLS SOUTH UTILITIES SYSTEM

i Mr.-R. W.-Reid April 30, 1980 3/4 1-3 B 3/4 1-1 3/4 1-8 B 3/4 1-2 3/4 1-12 B 3/4 1-3

3/4 1-15

. Pursuant to the requirements of 10 CFR 170.12, we have determined our amendment request to require a Class III fee of $4000 as it involves a single safety issue. Accordingly, a check in the amount of $4000 is

, remitted.

V ry truly yours,.

~

Aw- V William Cavanaugh III

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fV WC:DRH:ms Attachment i

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STATE OF ARKANSAS )

) SS COUNTY OF PULASKI )

William Cavanaugh III, being duly sworn, states that he is Vice President, Generation & Construction, for Arkansas Power & Light Company, that he is authorized on the part of said Company to sign and file with the Nuclear Regulatory ' Commission this Supplementary Infomation; that he has reviewed or caused to have reviewed all of the statements contained in such information, and that all such statements made and matters set forth therein are true and correct to the best of his knowledge, informa-tion and belief.

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William Cavanatigh III

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SUBSCRIBED AND SWORN T0 before me, a Notary Public in and for the County and State above named, this$ day of 1980.

/

JJ k s Notary Public / /

My Coninission Expires:

My Commission Ex$es 9/1/81 l