ML20212F450

Forwards Amends 246 & 237 to Licenses DPR-77 & DPR-79, Respectively & Ser.Amends Approve Request to Revise TSs to Allow Use of Fully Qualified & Tested Spare Inverter in Place of Any of Eight Required Inverters

ML20212F450
Person / Time
Site:	Sequoyah
Issue date:	09/23/1999
From:	Hernan R NRC (Affiliation Not Assigned)
To:	Scalice J TENNESSEE VALLEY AUTHORITY
Shared Package
ML20212F452	List: ML20212F450 ML20212F460 ML20212F476
References
TAC-MA6067, TAC-MA6068, NUDOCS 9909280205
Download: ML20212F450 (2)

Text

Mr. J.' A. Scahce Chief Nuclear Officer and September 23, 1999

. Executiva Vice President l

• Tennessee Valley Authonty 6A Lookout Place 1101 Market Street I Chattanooga, TN 37402-2801

SUBJECT:

ISSUANCE OF AMENDMENTS - SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2, REGARDING USE OF SPARE INVERTERS (TAC NOS. MA6067 AND MA6068) (TS 99-06)

Dear Mr. Scalice:

The Commission has issued the enclosed Amendment No. 246 to Facility Operating License No. DPR-77 and Amendment No. 237 to Facility Operating Ucense No. DPR-79 for the Sequoyah Nuclear Plant (SQN), Units 1 and 2, respectively. These amendments are in response to your application dated June 24,1999, which requested approval to revise the Technical Specifications (TS) to allow use of a fully qualified and tested spare invertar in place of any of the eight required inverters. Your application stated that Tennessee Valley Authority (TVA) is installing eight new inverters and updating four of the current inverters to provide a spare inverter for each of the four channels of vitalinstrument power. This change adds a footnote to the requirements of TS 3.8.2.1 and 3.8.2.2 that describes the acceptability to utilize the spare inverters. The Commission has reviewed TVA's request and found it to be acceptable.

A copy of the Safety Evaluation is also enclosed. Notice of Issuance will be included in the Commission's next biweekly Federal Reaister notice.

Sincerely, original signed by:

Ronald W. Heman, Sr. Project Manager, Section 2

' Project Directorate ll Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-327 and 50-328

Enclosures:

1. Amendment Not 246 to License No. DPR-77 < l 6

2. Amendment No. 237 to License No. DPR-79 L4...tg-

3. Safety Evaluation cc w/ enclosures: See next page OlSTRIBUTION: SPeterson WBeckner JCalvo }

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UNITED STATES NUCLEAR REGULATORY COMMISSION f f- WASHINGTON, D.C. 20665-0001

.m. p September 23, 1999 ,

i Mr. J. A.~ Scalice

! Chief Nuclear Officer and l Executive Vice President

! Tennessee Valley Authority 6A Lookout Place -

' 1101 Market Street.

Chattanooga, TN 37402-2801

SUBJECT:

ISSUANCE OF AMENDMENTS - SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2, REGARDING USE OF SPARE INVERTERS (TAC NOS. MA6067 AND MA6068) (TS 99-06)

Dear Mr. Scalice:

The Commission has issued the enclosed Amendment No. 246 to Facility Operating License No. DPR-77 and Amendment No. 237 to Facility Operating License No. DPR-79 for the Sequoyah Nuclear Plant (SQN), Units 1 and 2, respectively. These amendments are in response to your application dated June 24,1999, which requested approval to revise the

, Technical Specifications (TS) to allow use of a fully qualified and tested spare inverter in place of any of the eight required inverters. Your application stated that Tennessee Valley Authority (TVA) is installing eight new inverters and updating four of the current inverters to provide a spare inverter for each of the four channels of vital instrument power. This char.ge adds a footnote to the requirements of TS 3.8.2.1 and 3.8.2.2 that describes the acceptability to utilize the spare inverters. The Commission has reviewed TVA's request and found it to be acceptable.

A copy of the Safety Evaluation is also enclosed. Notice of Issuance will be included in the Commission's next biweekly Federal Reaister notice.

Sincerely,

- Ronald W. Heman, Sr. Project Manager, Section 2 Project Directorate il Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-327 and 50-328

Enclosures:

1. Amendment No. 246 to License No. DPR-77

2. Amendment No. 237 to License No. DPR-79

3. Safety Evaluation cc w/ enclosures:: See next page l