ML20029A442

Application for Amend to License DPR-79,changing Tech Specs to Modify Required Boron Concentration for One Cold Leg Injection Accumulator from Between 2400 & 2700 Ppm to 1900 & 2700 Ppm for Cycle 5 Operation Only

ML20029A442
Person / Time
Site:	Sequoyah
Issue date:	02/14/1991
From:	Cooper M TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20029A443	List: ML20029A442 ML20029A445
References
NUDOCS 9102220124
Download: ML20029A442 (2)

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tenneswe vee, umt, posi once 60. m rawnas, tewswe aram February 14, 1991 TVA-SQN-TS-91-01 10 CFR 50.90 U.S. Nuclear Regulatory Comission ATTN Document Control Desk Washingtoa, D.C. 20555 Gentlemen:

In the Matter of ) Docket No. 50-328 Tennessee Valley Authority )

SEQUOYAH NUCLEAR PL/sNT (SQN) - TECHNICAL SPECIFICATION (TS) CHANGE 91-01 In accordance with 10 CFR 50.90, we are enclosing a requested amendment te License DPR-79 to change the TSs of SQN Unit 2. The proposed change modifies the required boron concentration for one of four cold leg injection accumulators from between 2,400 and 2,700 parts per million (ppm) boron to between 1,900 and 2,700 ppm boron for Unit 2 Cycle 5 operation only.

As explained in a telecon between TVA and NRC staff on January 9, 1991, this change is requested to reduce the frequency at which the Unit 2 col.d leg accumulator No. 3 is being removed from service (with entry into TS Action 3.S.1.1) for periodic draindowns and rr.: fills. This periodic evolution has been necessary as a result of a continuing small reactor coolant inleakage into the accumulator on the order of 0.1 to 0.2 gallon per minute. Your expeditious review and approval are requested so that this relief may be implemented as soon as possible.

• The proposed TE change is identified in Enclosure 1. The justification for the proposed TS change is provided in Enclosure 2. A proposed determination of no significant hazards consideration performed pursuant to 10 CFR 50.92 is provided in Enclosure 3.

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U.S.'_ Nuclear Regulatory Comission i February.14, 1991-Please direct questions concerning this issue to Keish C. Weller at l o (615) 843-7527.

i Very truly yours,-

TENNESSEE VALLEY AUTlWRITY y

M. A. Cooper, Manager SQN Site Licensing-

' Sworn t ad sub er b d before me -

y this y ll # 1991-

• I f h h ,f ~ Q& g . "

Notary Pub 1/c / /' .

.- My Comission Expires '  !.f8'h>

Enclos.ures-cc (Enclosures):

'Ms. S. C.-Black',~_ Deputy Director NRC Resident Inspector

-Project' Directorate.II-4 . _

Sequoyah_ Nuclear Plant i U.S. : Nuclear Regulatory Comission 2600-Igou Ferry Road' .

'One White Flint, North- Soddy Daisy, Tennessee: 37379

'11555 Rockville? Pike p

Rockville,; Maryland

20852 -Mr. B. A. Wilson, Projec', Chief 1 l 'U.S._ Nuclear:Regulatorys C unission: .3 L Mr.'Ji-N' Donohew

. - Region!II. T Project Manager; . 101 Marietta-Street, NW, Suite 2900' 'I U.S. Nuclear Regulatory Comission Atlanta,1 Georgia 30323 One White-Flint. North 4

'11555 Rockville Pike- '

l' Rockville._ Maryland ~20852 i

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