ML20085G251

Application for Amends to Licenses DPR-77 & DPR-79, Consisting of TS Change 91-17,revising Surveillance Requirement 4.8.1.1.2.d.3 for Diesel Generator Load Rejection Overshoot Limits

ML20085G251
Person / Time
Site:	Sequoyah
Issue date:	10/11/1991
From:	Joshua Wilson TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20085G253	List: ML20085G251 ML20085G259
References
NUDOCS 9110240208
Download: ML20085G251 (3)

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'l October 11. 1991 TVA-SQN-TS-91-17 10 CFR 50.90 U.S. Nuclear Regulatory Connission ATTN: Document Control Desk Washington, D.C. 20 " 4 Gentlemen!

In the Matter of ) Docket Nos. 50-377 Tennessee Valley Au,hority ) 50-329 SEQUOYAF NUCLEAR PLANT (SQN) - TECHNICAL SPECIFICATION (TS) CHANGE 91-17

" REVISION OF SURVEILLANCE REQUIREMENT (SR) 4.8.1.1.2.d. J FOR DIESEL CENERATOR (D/G) LOAD REJECTION OVERSHOOT LIMITS" Reference TVA letter to NRC dated October 10, 1991, "Sequoyah Nucicar Plant (SQN) - kequest for Waiver of Compliance for Units 1 and 2 Surveillance Requirement (SR) 4.S.1.1.2.d.3 as Applied to Emergency Diesel Generator (D/G) Voltage Overshoot Limits" In accordance with 10 CFR 50.90, we are enc'osing a requested amendment to Licenseu DPR-77 and DPR-79 to change the TSs of SQN Units 1 and 2. The proposed change revises SR 4.8.1.1.2.d.3. The proposed revision alters the acceptance criteria of this SR to more clearly reflect the intent of the load rejection tes .n g .

The propased 3 change is identified in Enclosure 1. The justification for the proposet TS change is provided in inclosure 2. A proposed determination of no signif tant hazards consideration performed pursuant to 10 CFR 50.92 is provided in E. slosuie 3.

The failure to s tisfy SR 4.8.1.1.2.d.3 as currently worded would require a forced shutdown oi SQN Unit 2 unnecessary additional testing of D/Gs and delaye in critical path activities for Unit 1 Cycle 5 refueling outage activities. As described in Enclosure 2, TVA submits that the intent et SR 4.8.1.1.2.d.3 has been satisfied by testing performed on October 7, 1991, for tie IA-A D/C and October 9, 1991, for the 1B-B D/G, and that these D/Gs would be inoperable only because of the specific wording of the SR.

9110240208 911011 i I

PDR ADOCK 05000327 \

P PDR j

2 U.S. Nuclear Regulatory Commission October 11. 1991

'TVA, therGfore, requests that this proposed change be processed on an emergency basis. The need for this change was only recently identified and TVA has pursued it on a priority basis since that time. Therefore, I additional tonting nould not be expected to provide rnsulta consistent l with the current SR 11mits. Recently added procedural loading j requi re. ment s incorporated as a result of a recent NRC information notice  :

are considered to have led to the existing SR noncompilance. A temporary )

waiver of compliance to ER 4.8.1.1.2.d.3 was requested by the re ference. -

and-verbal approval from SRC was granted on October 9 and 10. 199..

, -This change request is being reviewed by TVA's Nuclear Safety Review i

Board (NSRB) in paralle".-with NRC's review. Any changes resulting from ,

the NSRB review will be provided to the NRC in a timely manner.

Please direct questions concerning tbis issue to K. C. Weller at (615) 843-1527.

Sincerely. t

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h.snA

. l.. Wilson .

SworntopLred subscribed before me thisJlT- day o.( O C 1 oo,Ef 1991

. gay [ a>du-e. - IfLLx 0;q No'tary4ublic My Commission Expires 7 (I A/

Enclosures cet. See.page 3 1

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t 4 4 l 4 3 p U.S. Nucleer Regulatory Commission

10ctober 11, 1991

cc (Enclosures):

1 American Nuclear Insurers  ;

Attention: 1.ibrarian  !

The Exchange, Sutto 24$

270 Farmington Avenue '

2 Farmington, Connecticut 06032  ;

$ Mr. D. - E. LaBarge, Project Manager ,

. U.S.-Nuclear Regalatory Commission i i -One White-Flint, North 11555 Rockville Pike ,

Rockville,' Maryland 20PS2 l, I JMr. Michael-H. Motley, Director (w/o Enclosures) 1 Division of.Radiolcgical Health T.E.R.R.A. Buildi.tg 150 9th_ Avenue, N ,

Nashville Tennessee 37203  ;

bi .NRC ResidentIInspector +

Sequoyah Nuclear Plant:  ;

2600_lgou Ferry Road a r Soddy Daisy. Tennessee 37379

)

.Mr. B..A. Wilson, Project Chief U.S. Nuclear Regulatory Commission

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101:Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 q c

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